Arithmetic Aptitude 2
Numbers 2
Problems on Trains 18
Time and Distance 23
Height and Distance 25
Time and Work 27
Problems on Ages 32
Alligation or Mixture 34
Chain Rule 38
Simple Interest 40
Compound Interest 42
Profit and Loss 45
Partnership 47
Percentage 50
True Discount 52
Ratio and Proportion 54
Simplification 56
Problems On H.C.F and L.C.M 60
Square Root and Cube Root 63
Logarithm 65
Volume and Surface Area 67
Permutation and Combination 69
Probability 72
Average 74
Area 76
Races And Games 79
Boats and Streams 81
Surds and Indices 83
Pipes and Cistern 86
Calendar 89
Clock 92
Geometry 95
Reasoning APTITUDE 98
Analytical Reasoning 98
Pipes and Cistern 106
Logical Problems 107
Logical Games 116
Logical Deduction 120
Data Sufficiency 124
Arithmetic Reasoning 128
Data Interpretation 133
Table Charts 133
Bar Charts 145
Pie Charts 151
Line Charts 154
Data Sufficiency (DS) Problems on Trains 159
Time and Distance 162
Time and Work 163
Simple Interest 165
Compound Interest 166
Profit and Loss 168
Partnership 170
Problems on Ages 172
Average 174
Area 176
Volume and Surface Area 179
Problems on Numbers 180
Statement and Assumption 182
Making Assumptions 187
Course of Action 188
Cause and Effect 193
Statement and Conclusion 198
Statement and Argument 203
CREATIVITY Aptitude 208
Venn Diagram Answers 208
Cube And Cuboids 211
Dice 213
Cubes and Dice Answers 217
Figure Matrix 222
Seating Arrangement 226
Direction Sense Test 228
Mirror And Water Images 235
Embedded Images 238
Grouping Of Images 241
Image Analysis 246
Pattern Completion 249
Paper Cutting 253
Shape Construction 256
Paper Folding 260
Character Puzzles 263
Missing Letters Puzzles 268
Logical Puzzles 272
Playing Cards Puzzles 277
Clock Puzzles 279
Number Puzzles 285
Dot Situation 291
Rule Detection 295
Verbal Aptitude 297
Closet Test 297
Idioms and Phrases 300
Synonyms 303
Antonyms 305
Change Of Voice 306
Change Of Speech 308
Letter and Symbol Series 309
Essential Part 310
Spellings 312
Spotting Errors 315
Ordering Of Words 316
Sentence Correction 320
Sentence Improvement 321
Completing Statements 322
Sentence Formation 324
Paragraph Formation 325
Ordering Of Sentences 326
Comprehension 328
One Word Substitutes 331
Verbal Analogies 332
Syllogism 333
Classification 337
Logical Sequcence 341
Verbal Reasoning 344
Analysing Arguments 346
Verification Of Truth 350
Blood Relations 351
Matching Definition 354
Theme Detection 356
Arithmetic Aptitude
NUMBERS
1.1397 x 1397 = ?
Answer: 1951609.
Explanation:
1397 x 1397 | = (1397)2 |
| = (1400 - 3)2 |
| = (1400)2 + (3)2 - (2 x 1400 x 3) |
| = 1960000 + 9 - 8400 |
| = 1960009 - 8400 |
| = 1951609. |
2. (112 x 54) = ?
Answer: 70000
Explanation:
(112 x 54) = 112 x |
| 104 |
|
| = | 112 x 104 | = | 1120000 | = 70000 |
2 | 24 | 16 |
3. It is being given that (232 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?
Answer: (x + 1)
Explanation:
Let 232 = x. Then, (232 + 1) = (x + 1).
Let (x + 1) be completely divisible by the natural number N. Then,
(296 + 1) = [(232)3 + 1] = (x3 + 1) = (x + 1)(x2 - x + 1), which is completely divisible by N, since (x + 1) is divisible by N.
4.Which one of the following is not a prime number?
Answer: 91
Explanation:
91 is divisible by 7. So, it is not a prime number.
5.What least number must be added to 1056, so that the sum is completely divisible by 23 ?
Answer: 2
Explanation:
23) 1056 (45
92
---
136
115
---
21
---
Required number = (23 - 21)
= 2.
6. How many of the following numbers are divisible by 132 ?
264, 396, 462, 792, 968, 2178, 5184, 6336
Answer: 4
Explanation:
132 = 4 x 3 x 11
So, if the number divisible by all the three number 4, 3 and 11, then the number is divisible by 132 also.
264 🡪 11,3,4 (/)
396 🡪 11,3,4 (/)
462 🡪 11,3 (X)
792 🡪 11,3,4 (/)
968 🡪 11,4 (X)
2178 🡪 11,3 (X)
5184 🡪 3,4 (X)
6336 🡪 11,3,4 (/)
Therefore the following numbers are divisible by 132 : 264, 396, 792 and 6336.
Required number of number = 4.
7. (935421 x 625) = ?
Answer: 584638125
Explanation:
935421 x 625 = 935421 x 54 = 935421 x |
| 104 |
|
|
2 |
= | 935421 x 104 | = | 9354210000 |
24 | 16 |
= 584638125
8. The largest 4 digit number exactly divisible by 88 is:
Answer: 9944
Explanation:
Largest 4-digit number = 9999
88) 9999 (113
88
----
119
88
----
319
264
---
55
---
Required number = (9999 - 55)
= 9944.
9. On dividing a number by 5, we get 3 as remainder. What will the remainder when the square of the this number is divided by 5 ?
Answer: 4
Explanation:
Let the number be x and on dividing x by 5, we get k as quotient and 3 as remainder.
x = 5k + 3
x2 = (5k + 3)2
= (25k2 + 30k + 9)
= 5(5k2 + 6k + 1) + 4
On dividing x2 by 5, we get 4 as remainder.
10. How many of the following numbers are divisible by 3 but not by 9 ?
2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276
Answer: 6
Explanation:
Marking (/) those which are are divisible by 3 by not by 9 and the others by (X), by taking the sum of digits, we get:s
2133 🡪 9 (X)
2343 🡪 12 (/)
3474 🡪 18 (X)
4131 🡪 9 (X)
5286 🡪 21 (/)
5340 🡪 12 (/)
6336 🡪 18 (X)
7347 🡪 21 (/)
8115 🡪 15 (/)
9276 🡪 24 (/)
Required number of numbers = 6.
11. (xn - an) is completely divisible by (x - a), when
Answer: For every natural number n, (xn - an) is completely divisible by (x - a).
Explanation:
For every natural number n, (xn - an) is completely divisible by (x - a).
12. A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is divisible by 11. Then, (a + b) = ?
Answer: 10
Explanation:
4 a 3 |
9 8 4 } ==> a + 8 = b ==> b - a = 8
13 b 7 |
Also, 13 b7 is divisible by 11 🡪 (7 + 3) - (b + 1) = (9 - b)
🡪 (9 - b) = 0 🡪 b = 9 🡪 (b = 9 and a = 1) 🡪(a + b) = 10.
13. Which one of the following is the common factor of (4743 + 4343) and (4747 + 4347) ?
Answer: (47 + 43).
Explanation:
When n is odd, (xn + an) is always divisible by (x + a).
🡪 Each one of (4743 + 4343) and (4747 + 4343) is divisible by (47 + 43).
14. (963 + 476)2 + (963 - 476)2 | = ? |
(963 x 963 + 476 x 476) |
Answer: 2
Explanation:
Given Exp. = | (a + b)2 + (a - b)2 | = | 2(a2 + b2) | = 2 |
(a2 + b2) | (a2 + b2) |
|
15. 8597 - ? = 7429 - 4358
Answer: 5526
Explanation:
7429 Let 8597 - x = 3071
-4358 Then, x = 8597 - 3071
---- = 5526
3071
----
16. (12345679 x 72) = ?
Answer: 888888888
Explanation:
12345679 x 72 | = 12345679 x (70 +2) |
| = 12345679 x 70 + 12345679 x 2 |
| = 864197530 + 24691358 |
| = 888888888
|
17. What smallest number should be added to 4456 so that the sum is completely divisible by 6 ?
Answer: 2
Explanation:
6) 4456 (742
42
---
25
24 Therefore, Required number = (6 - 4) = 2.
---
16
12
---
4
18. Which of the following numbers will completely divide (4915 - 1) ?
Answer: 8
Explanation:
(xn - 1) will be divisibly by (x + 1) only when n is even.
(4915 - 1) = {(72)15 - 1} = (730 - 1), which is divisible by (7 +1), i.e., 8.
19. (112 + 122 + 132 + ... + 202) = ?
Answer: 2485
Explanation:
(112 + 122 + 132 + ... + 202) = (12 + 22 + 32 + ... + 202) - (12 + 22 + 32 + ... + 102)
🡪 | Ref: (12 + 22 + 32 + ... + n2) = | 1 | n(n + 1)(2n + 1) |
| |
6 |
= |
| 20 x 21 x 41 | - | 10 x 11 x 21 |
|
6 | 6 |
= (2870 - 385)
= 2485.
20. (51+ 52 + 53 + ... + 100) = ?
Answer: 3775
Explanation:
This is an A.P. in which a = 51, l = 100 and n = 50.
Sum = n (a+l) / 2 = 50(51+100)/2 = 3775.
21. | 1 - | 1 | + |
| 1 - | 2 | + |
| 1 - | 3 | + ... up to n terms = ? |
n | n | n |
Answer: ½(n-1)
Explanation:
Given sum |
= (1 + 1 + 1 + ... to n terms) | - | 
| 1 | + | 2 | + | 3 | + ... to n terms | 
| n | n | n |
|
|
= n - | n | 
| 1 | + 1 | 
| [ Ref: nth terms = (n/n) = 1] | 2 | n |
|
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|
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|
22. Which natural number is nearest to 8485, which is completely divisible by 75 ?
Answer: 8475
Explanation:
On dividing, we get
75) 8485 (113
75
---
98
75
----
235
225
---
10
---
Required number = (8485 - 10)
= 8475.
23. A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 98 are wrong and the other digits are correct, then the correct answer would be:
Answer: 555681
Explanation:
987 = 3 x 7 x 47
So, the required number must be divisible by each one of 3, 7, 47
553681 (Sum of digits = 28, not divisible by 3)
555181 (Sum of digits = 25, not divisible by 3)
555681 is divisible by 3, 7, 47.
24. On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is:
Answer: 10
Explanation:
Clearly, (2272 - 875) = 1397, is exactly divisible by N.
Now, 1397 = 11 x 127
The required 3-digit number is 127, the sum of whose digits is 10.
25.How many prime numbers are less than 50 ?
Answer: 15
Explanation:
Prime numbers less than 50 are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47
Their number is 15
26. In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, what is the dividend ?
Answer: 5336
Explanation:
Divisor = (5 x 46) = 230
10 x Quotient = 230 = | 230 | = 23 |
10 |
Dividend = (Divisor x Quotient) + Remainder
= (230 x 23) + 46
= 5290 + 46
= 5336.
27. n is a whole number which when divided by 4 gives 3 as remainder. What will be the remainder when 2n is divided by 4 ?
Answer: 2
Explanation:
Let n = 4q + 3. Then 2n = 8q + 6 = 4(2q + 1 ) + 2.
Thus, when 2n is divided by 4, the remainder is 2.
28. The sum of the two numbers is 12 and their product is 35. What is the sum of the reciprocals of these numbers ?
Answer: 12/35
Explanation:
Let the numbers be a and b. Then, a + b = 12 and ab = 35.
| a + b | = | 12 | 🡪 | 1 | + | 1 | = | 12 |
ab | 35 | b | a | 35 |
Sum of reciprocals of given numbers = | 12 |
35 |
29. 5358 x 51 = ?
Answer: 273258
Explanation:
5358 x 51 | = 5358 x (50 + 1) |
| = 5358 x 50 + 5358 x 1 |
| = 267900 + 5358 |
| = 273258.
|
30. The sum of first five prime numbers is:
Answer: 28
Explanation:
Required sum = (2 + 3 + 5 + 7 + 11) = 28.
Note: 1 is not a prime number.
Definition: A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.
31. The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?
Answer: 270
Explanation:
Let the smaller number be x. Then larger number = (x + 1365).
🡪x + 1365 = 6x + 15
🡪5x = 1350
🡪x = 270
🡪Smaller number = 270.
32. If the number 517 * 324 is completely divisible by 3, then the smallest whole number in the place of * will be:
Answer: 2
Explanation:
Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = (22 + x), which must be divisible by 3.
🡪 x = 2.
33. 72519 x 9999 = ?
Answer: 725117481
Explanation:
72519 x 9999 | = 72519 x (10000 - 1) |
| = 72519 x 10000 - 72519 x 1 |
| = 725190000 - 72519 |
| = 725117481. |
34. (12)3 x 64 ÷ 432 = ?
Answer: 5184
Explanation:
Given Exp. = | (12)3 x 64 | = | (12)3 x 64 | = (12)2 x 62 = (72)2 = 5184 |
432 | 12 x 62 |
35. The smallest 3 digit prime number is:
Answer: None of these
Explanation:
The smallest 3-digit number is 100, which is divisible by 2.
🡪100 is not a prime number.
Sqrt(101) < 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11.
🡪101 is a prime number.
Hence 101 is the smallest 3-digit prime number.
36. Which one of the following numbers is exactly divisible by 11?
Answer: 415624
Explanation:
(4 + 5 + 2) - (1 + 6 + 3) = 1, not divisible by 11.
(2 + 6 + 4) - (4 + 5 + 2) = 1, not divisible by 11.
(4 + 6 + 1) - (2 + 5 + 3) = 1, not divisible by 11.
(4 + 6 + 1) - (2 + 5 + 4) = 0, So, 415624 is divisible by 11.
37.(?) - 19657 - 33994 = 9999
Answer: 63650
Explanation:
19657 Let x - 53651 = 9999
33994 Then, x = 9999 + 53651 = 63650
-----
53651
-----
38. The sum of first 45 natural numbers is:
Answer: 1035
Explanation:
Let Sn =(1 + 2 + 3 + ... + 45). This is an A.P. in which a =1, d =1, n = 45.
Sn = | n | [2a + (n - 1)d] | = | 45 | x [2 x 1 + (45 - 1) x 1] | = |
| 45 | x 46 |
| = (45 x 23) |
2 | 2 | 2 |
= 45 x (20 + 3)
= 45 x 20 + 45 x 3
= 900 + 135
= 1035.
Shorcut Method:
Sn = | n(n + 1) | = | 45(45 + 1) | = 1035. |
2 | 2 |
39. (?) + 3699 + 1985 - 2047 = 31111
Answer: 27474
Explanation:
x + 3699 + 1985 - 2047 = 31111
🡪 x + 3699 + 1985 = 31111 + 2047
🡪 x + 5684 = 33158
🡪 x = 33158 - 5684 = 27474.
40. 753 x 753 + 247 x 247 - 753 x 247 | = ? |
753 x 753 x 753 + 247 x 247 x 247 |
Answer:
Explanation:
Given Exp. = | (a2 + b2 - ab) | = | 1 | = | 1 | = | 1 |
(a3 + b3) | (a + b) | (753 + 247) | 1000 |
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41.Which of the following number is divisible by 24 ?
Answer: 3125736
Explanation:
24 = 3 x8, where 3 and 8 co-prime.
Clearly, 35718 is not divisible by 8, as 718 is not divisible by 8.
Similarly, 63810 is not divisible by 8 and 537804 is not divisible by 8.
Sum of digits = (3 + 1 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 3.
Also, 736 is divisible by 8.
3125736 is divisible by (3 x 8), i.e., 24.
42. If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:
Answer: 7
Explanation:
Sum of digits = (4 + 8 + 1 + x + 6 + 7 + 3) = (29 + x), which must be divisible by 9.
🡪 x = 7.
43. The difference between the local value and the face value of 7 in the numeral 32675149 is
Answer: 69993
Explanation:
(Local value of 7) - (Face value of 7) = (70000 - 7) = 69993
44. The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is:
Answer: 4/5
Explanation:
Let the required fraction be x. Then | 1 | - x = | 9 |
x | 20 |
🡪 20 - 20x2 = 9x
🡪 20x2 + 9x - 20 = 0
🡪 20x2 + 25x - 16x - 20 = 0
🡪 5x(4x + 5) - 4(4x + 5) = 0
🡪 (4x + 5)(5x - 4) = 0
🡪 x = 4/5.
45. On dividing a number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder ?
Answer: 5
46. If n is a natural number, then (6n2 + 6n) is always divisible by:
Answer: 6 and 12 both
Explanation:
(6n2 + 6n) = 6n(n + 1), which is always divisible by 6 and 12 both, since n(n + 1) is always even.
47. 107 x 107 + 93 x 93 = ?
Answer: 20098
Explanation:
107 x 107 + 93 x 93 | = (107)2 + (93)2 |
| = (100 + 7)2 + (100 - 7)2 |
| = 2 x [(100)2 + 72] [Ref: (a + b)2 + (a - b)2 = 2(a2 + b2)] |
| = 20098 |
48. What will be remainder when (6767 + 67) is divided by 68 ? Answer: 66 Explanation: (xn + 1) will be divisible by (x + 1) only when n is odd. (6767 + 1) will be divisible by (67 + 1) (6767 + 1) + 66, when divided by 68 will give 66 as remainder. |
49.Which of the following is a prime number ?
Answer: 97
PROBLEMS ON NUMBERS
The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number?
Answer: the number cannot be determined
Explanation:
Let the ten's digit be x and unit's digit be y.
Then, x + y = 15 and x - y = 3 or y - x = 3.
Solving x + y = 15 and x - y = 3, we get: x = 9, y = 6.
Solving x + y = 15 and y - x = 3, we get: x = 6, y = 9.
So, the number is either 96 or 69.
Hence, the number cannot be determined.
2. The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is:
Answer: 20
Explanation:
Let the numbers be a, b and c.
Then, a2 + b2 + c2 = 138 and (ab + bc + ca) = 131.
(a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca) = 138 + 2 x 131 = 400.
🡪 (a + b + c) =sqrt( 400) = 20.
3. A number consists of two digits. If the digits interchange places and the new number is added to the original number, then the resulting number will be divisible by:
Answer: 11
Explanation:
Let the ten's digit be x and unit's digit be y.
Then, number = 10x + y.
Number obtained by interchanging the digits = 10y + x.
🡪 (10x + y) + (10y + x) = 11(x + y), which is divisible by 11.
4. In a two-digit, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:
Answer: 24
Explanation:
Let the ten's digit be x.
Then, unit's digit = x + 2.
Number = 10x + (x + 2) = 11x + 2.
Sum of digits = x + (x + 2) = 2x + 2.
🡪 (11x + 2)(2x + 2) = 144
🡪 22x2 + 26x - 140 = 0
🡪 11x2 + 13x - 70 = 0
🡪 (x - 2)(11x + 35) = 0
🡪 x = 2.
Hence, required number = 11x + 2 = 24.
5. Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
Answer: 3
Explanation:
Let the number be x.
🡪 x2 + 17x - 60 = 0
🡪 (x + 20)(x - 3) = 0
🡪 x = 3.
6. The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is:
Answer: 400
Explanation:
Let the numbers be x and y.
Then, xy = 9375 and | x | = 15. |
y |
🡪 y2 = 625.
🡪 y = 25.
🡪 x = 15y = (15 x 25) = 375.
🡪 Sum of the numbers = x + y = 375 + 25 = 400.
7. The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is:
Answer: 23
Explanation:
Let the numbers be x and y.
Then, xy = 120 and x2 + y2 = 289.
🡪 (x + y)2 = x2 + y2 + 2xy = 289 + (2 x 120) = 529 🡪x + y = sqrt(529) = 23.
8. A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is:
Answer: 253
Explanation:
Let the middle digit be x.
Then, 2x = 10 or x = 5. So, the number is either 253 or 352.
Since the number increases on reversing the digits, so the hundred's digits is smaller than the unit's digit.
Hence, required number = 253.
9. The sum of two number is 25 and their difference is 13. Find their product.
Answer: 114
Explanation:
Let the numbers be x and y.
Then, x + y = 25 and x - y = 13.
4xy = (x + y)2 - (x- y)2
= (25)2 - (13)2
= (625 - 169)
= 456
🡪xy = 114.
10. What is the sum of two consecutive even numbers, the difference of whose squares is 84?
Answer: 42
Explanation:
Let the numbers be x and x + 2.
Then, (x + 2)2 - x2 = 84
🡪4x + 4 = 84
🡪4x = 80
🡪x = 20.
🡪The required sum = x + (x + 2) = 2x + 2 = 42.
11.If one-third of one-fourth of a number is 15, then three-tenth of that number is:
Answer: 54
Explanation:
Let the number be x.
Then, | 1 | of | 1 | of x = 15 🡪 x = 15 x 12 = 180. |
3 | 4 |
So, required number = | 3 | x 180 | = 54. |
10 |
|
|
|
|
12. Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:
Answer: 15
Explanation:
Let the three integers be x, x + 2 and x + 4.
🡪Then, 3x = 2(x + 4) + 3 🡪x = 11. 🡪 Third integer = x + 4 = 15.
13. The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?
Answer: 4
Explanation:
Let the ten's digit be x and unit's digit be y.
Then, (10x + y) - (10y + x) = 36
🡪9(x - y) = 36 🡪x - y = 4.
14. The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?
Answer: 8
Explanation:
Since the number is greater than the number obtained on reversing the digits, so the ten's digit is greater than the unit's digit.
Let ten's and unit's digits be 2x and x respectively.
Then, (10 x 2x + x) - (10x + 2x) = 36
🡪9x = 36
🡪x = 4.
🡪Required difference = (2x + x) - (2x - x) = 2x = 8.
15. A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is:
Answer: 2
Explanation:
Let the ten's and unit digit be x and | 8 | respectively. |
x |
Then, | 🡪 | 10x + | 8 | + 18 = 10 x | 8 | + x |
x | x |
🡪10x2 + 8 + 18x = 80 + x2
🡪9x2 + 18x - 72 = 0
🡪x2 + 2x - 8 = 0
🡪 (x + 4)(x - 2) = 0
🡪x = 2.
FIND ODD NUMBER
1.1, 4, 9, 16, 23, 25, 36
Answer: 23
Explanation:
Each of the numbers except 23, is perfect square.
2. 1, 4, 9, 16, 20, 36, 49
Answer: 20
Explanation:
The pattern is 12, 22, 32, 42, 52, 62, 72. But, instead of 52, it is 20 which to be turned out.
3. 2, 5, 10, 17, 26, 37, 50, 64
Answer: 64
Explanation:
(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1
But, 64 is out of pattern.
4. 10, 14, 16, 18, 21, 24, 26
Answer: 21
Explanation:
Each of the numbers except 21 is an even number.
5. 16, 25, 36, 72, 144, 196, 225
Answer: 72
Explanation:
Each of the numbers except 72 is a perfect square.
6. 331, 482, 551, 263, 383, 362, 284
Answer: 383
Explanation:
In each number except 383, the product of first and third digits is the middle one.
7. 835, 734, 642, 751, 853, 981, 532
Answer: 751
Explanation:
In each number except 751, the difference of third and first digit is the middle one.
8. 41, 43, 47, 53, 61, 71, 73, 81
Answer: 81
Explanation:
Each of the numbers except 81 is a prime number.
9. 3, 5, 7, 12, 17, 19
Answer: 12
Explanation:
Each of the numbers is a prime number except 12.
10. 3, 5, 11, 14, 17, 21
Answer: 14
Explanation:
Each of the numbers except 14 is an odd number.
The number '14' is the only EVEN number.
11. 8, 27, 64, 100, 125, 216, 343
Answer: 100
Explanation:
The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube.
12. 10, 25, 45, 54, 60, 75, 80
Answer: 54
Explanation:
Each of the numbers except 54 is multiple of 5.
13. 396, 462, 572, 396, 427, 671, 264
Answer: 427
Explanation:
In each number except 427, the middle digit is the sum of other two.
14. 6, 9, 15, 21, 24, 28, 30
Answer: 28
Explanation:
Each of the numbers except 28, is a multiple of 3.
WRONG MAN OUT
52, 51, 48, 43, 34, 27, 16
Answer: 34
Explanation:
Subtract 1, 3, 5, 7, 9, 11 from successive numbers.
So, 34 is wrong.
2. 4, 6, 8, 9, 10, 11, 12
Answer: 11
Explanation:
Each number is a composite number except 11.
3. 105, 85, 60, 30, 0, -45, -90
Answer: 0
Explanation:
Subtract 20, 25, 30, 35, 40, 45 from successive numbers.
So, 0 is wrong.
4. 5, 16, 6, 16, 7, 16, 9
Answer: 9
Explanation:
Terms at odd places are 5, 6, 7, 8 etc. and each term at even place is 16.
So, 9 is wrong.
5. 125, 127, 130, 135, 142, 153, 165
Answer: 165
Explanation:
Prime numbers 2, 3, 5, 7, 11, 13 are to be added successively.
So, 165 is wrong.
6. 46080, 3840, 384, 48, 24, 2, 1
Answer: 24
Explanation:
The terms are successively divided by 12, 10, 8, 6, ...etc.
So, 24 is wrong, it should be 8 (48/6 = 8).
7. 6, 13, 18, 25, 30, 37, 40
Answer: 40
Explanation:
The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5.
So, 40 is wrong.
8. 36, 54, 18, 27, 9, 18.5, 4.5
Answer: 18.5
Explanation:
The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it
9. 56, 72, 90, 110, 132, 150
Answer: 150
Explanation:
The numbers are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13.
So, 150 is wrong.
10. 25, 36, 49, 81, 121, 169, 225
Answer: 36
Explanation:
The numbers are squares of odd natural numbers, starting from 5 up to 15.
So, 36 is wrong.
11.582, 605, 588, 611, 634, 617, 600
Answer: 634
Explanation:
Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.
12. 22, 33, 66, 99, 121, 279, 594
Answer: 279
Explanation:
Each of the number except 279 is a multiple of 11.
13. 8, 13, 21, 32, 47, 63, 83
Answer: 47
Explanation:
Go on adding 5, 8, 11, 14, 17, 20.
So, the number 47 is wrong and must be replaced by 46.
14. 1, 8, 27, 64, 124, 216, 343
Answer: 124
Explanation:
The numbers are 13, 23, 33, 43 etc. So, 124 is wrong; it must have been 53 i.e., 125.
15. 1, 2, 6, 15, 31, 56, 91
Answer: 91
Explanation:
1, 1 + 12 = 2, 2 + 22 = 6, 6 + 32 = 15, 15 + 42 = 31, 31 + 52 = 56, 56 + 62 = 92
Last number of given series must be 92 not 91.
MISSING MAN OUT
1.1, 4, 9, 16, 25, 36, 49, (....)
Answer: 64
Explanation:
Numbers are 12, 22, 32, 42, 52, 62, 72.
So, the next number is 82 = 64.
2. 2, 4, 12, 48, 240, (....) Answer: 1440 Explanation: Go on multiplying the given numbers by 2, 3, 4, 5, 6. So, the correct next number is 1440. |
3. 8, 7, 11, 12, 14, 17, 17, 22, (....) Answer: 20 Explanation: There are two series (8, 11, 14, 17, 20) and (7, 12, 17, 22) increasing by 3 and 5 respectively. |
4. 8, 24, 12, 36, 18, 54, (....)
Answer: 27
Explanation:
Numbers are alternatively multiplied by 3 and divided by 2.
So, the next number = 54 ÷ 2 = 27.
5.11, 13, 17, 19, 23, 29, 31, 37, 41, (....)
Answer: 43
Explanation:
Numbers are all primes. The next prime is 43.
6.2, 6, 12, 20, 30, 42, 56, (....)
Answer: 72
Explanation:
The pattern is 1 x 2, 2 x 3, 3 x 4, 4 x 5, 5 x 6, 6 x 7, 7 x 8.
So, the next number is 8 x 9 = 72.
7.4, -8, 16, -32, 64, (....)
Answer: -128
Explanation:
Each number is the proceeding number multiplied by -2.
So, the required number is -128.
8. 7, 26, 63, 124, 215, 342, (....)
Answer: 511
Explanation:
Numbers are (23 - 1), (33 - 1), (43 - 1), (53 - 1), (63 - 1), (73 - 1) etc.
So, the next number is (83 - 1) = (512 - 1) = 511.
9.5, 10, 13, 26, 29, 58, 61, (....)
Answer: 122
Explanation:
Numbers are alternatively multiplied by 2 and increased by 3.
So, the missing number = 61 x 2 = 122
10. 15, 31, 63, 127, 255, (....)
Answer: 511
Explanation:
Each number is double the preceding one plus 1.
So, the next number is (255 x 2) + 1 = 511.
11. 1, 8, 27, 64, 125, 216, (....)
Answer: 343
Explanation:
Numbers are 13, 23, 33, 43, 53, 63.
So, the missing number is 73 = 343.
12. 3, 7, 6, 5, 9, 3, 12, 1, 15, (....)
Answer: -1
Explanation:
There are two series, beginning respectively with 3 and 7. In one 3 is added and in another 2 is subtracted.
The next number is 1 - 2 = -1.
13.16, 33, 65, 131, 261, (....)
Answer: 523
Explanation:
Each number is twice the preceding one with 1 added or subtracted alternatively.
So, the next number is (2 x 261 + 1) = 523.
14. 10, 5, 13, 10, 16, 20, 19, (....)
Answer: 40
Explanation:
There are two series (10, 13, 16, 19) and (5, 10, 20, 40), one increasing by 3 and the other multiplied by 2.
WRONG NUMBER OUT
1.196, 169, 144, 121, 100, 80, 64
Answer: 80
Explanation:
Numbers must be (14)2, (13)2, (12)2, (11)2, (10)2, (9)2, (8)2.
So, 80 is wrong.
2. 445, 221, 109, 46, 25, 11, 4
Answer: 46
Explanation:
Go on subtracting 3 and dividing the result by 2 to obtain the next number.
Clearly, 46 is wrong.
3. 190, 166, 145, 128, 112, 100, 91
Answer: 128
Explanation:
Go on subtracting 24, 21, 18, 15, 12, 9 from the numbers to get the next number.
190 - 24 = 166
166 - 21 = 145
145 - 18 = 127 [Here, 128 is placed instead of 127]
127 - 15 = 112
112 - 12 = 100 ... and so on.
Therefore, 128 is wrong.
4.19, 26, 33, 46, 59, 74, 91
Answer: 35
Explanation:
Go on adding 7, 9, 11, 13, 15, 17 respectively to obtain the next number.
So, 33 is wrong. It must be 35
5. 1, 3, 10, 21, 64, 129, 356, 777
Answer: 356
Explanation:
A x 2 + 1, B x 3 + 1, C x 2 + 1, D x 3 + 1 and so on.
So, 356 is wrong.
6. 6, 12, 48, 100, 384, 768, 3072
Answer: 100
Explanation:
Each even term of the series is obtained by multiplying the previous term by 2.
2nd term = (1st term) x 2 = 6 x 2 = 12
4th term = (3rd term) x 2 = 48 x 2 = 96.
6th term = (5th term) x 2 = 384 x 2 =768.
4th term should be 96 instead of 100.
7. 40960, 10240, 2560, 640, 200, 40, 10 Answer: 200 Explanation: Go on dividing by 4 to get the next number. So, 200 is wrong. |
8. 3, 7, 15, 39, 63, 127, 255, 511 Answer: 39 Explanation: Go on multiplying 2 and adding 1 to get the next number. So, 39 is wrong. |
9.64, 71, 80, 91, 104, 119, 135, 155 |
Answer: 135 Explanation: Go on adding 7, 9, 11, 13, 15, 17, 19 respectively to obtain the next number. So, 135 is wrong.
10. 15, 16, 34, 105, 424, 2124, 12576 Answer: 2124 Explanation: 2nd term = (1st term) x 1 + 1 = 15 x 1 + 1 = 16. 3rd term = (2nd term) x 2 + 2 = 16 x 2 + 2 = 34. 4th term = (3th term) x 3 + 3 = 34 x 3 + 3 = 105. 5th term = (4th term) x 4 + 4 = 105 x 4 + 4 = 424 6th term = (5th term) x 5 + 5 = 424 x 5 + 5 = 2125 6th term should 2125 instead of 2124.
11. 10, 26, 74, 218, 654, 1946, 5834 Answer: 654 Explanation: 2nd term = (1st term) x 3 - 4 = 10 x 3 - 4 = 26. 3rd term = (2nd term) x 3 - 4 = 26 x 3 - 4 = 74. 4th term = (3th term) x 3 - 4 = 74 x 3 - 4 = 218. 5th term = (4th term) x 3 - 4 = 218 x 3 - 4 = 650. 5th term must be 650 instead of 654.
12. 2880, 480, 92, 24, 8, 4, 4 Answer: 92 Explanation: Go on dividing by 6, 5, 4, 3, 2, 1 respectively to obtain the next number. Clearly, 92 is wrong.
13. 3, 7, 15, 27, 63, 127, 255 Answer: 27 Explanation: Go on multiplying the number by 2 and adding 1 to it to get the next number. So, 27 is wrong.
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14.1, 1, 2, 6, 24, 96, 720
Answer: 96
Explanation:
Go on multiplying with 1, 2, 3, 4, 5, 6 to get next number.
So, 96 is wrong.
15.7, 8, 18, 57, 228, 1165, 6996
Answer: 228
Explanation:
Let the given numbers be A, B, C, D, E, F, G.
Then, A, A x 1 + 1, B x 2 + 2, C x 3 + 3, D x 4 + 4, E x 5 + 5, F x 6 + 6 are the required numbers.
Clearly, 228 is wrong.
NUMBER SERIES
1. Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?
Answer: 1/8
Explanation:
This is a simple division series; each number is one-half of the previous number.
In other terms to say, the number is divided by 2 successively to get the next result.
4/2 = 2
2/2 = 1
1/2 = 1/2
(1/2)/2 = 1/4
(1/4)/2 = 1/8 and so on.
2. Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?
Answer: 10
Explanation:
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.
3. Look at this series: 36, 34, 30, 28, 24, ... What number should come next?
Answer: 22
Explanation:
This is an alternating number subtraction series. First, 2 is subtracted, then 4, then 2, and so on.
4. Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?
Answer: 22
Explanation:
In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.
5. Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?
Answer: 14
Explanation:
In this series, each number is repeated, then 13 is subtracted to arrive at the next number.
6.Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?
Answer: 15
Explanation:
In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise simple addition series that increases by 2, beginning with the number 9.
7. Look at this series: 58, 52, 46, 40, 34, ... What number should come next?
Answer: 28
Explanation:
This is a simple subtraction series. Each number is 6 less than the previous number.
8. Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next?
Answer: 15
Explanation:
This alternating addition series begins with 3; then 1 is added to give 4; then 3 is added to give 7; then 1 is added, and so on.
9. Look at this series: 8, 22, 8, 28, 8, ... What number should come next?
Answer: 34
Explanation:
This is a simple addition series with a random number, 8, interpolated as every other number. In the series, 6 is added to each number except 8, to arrive at the next number
10. Look at this series: 31, 29, 24, 22, 17, ... What number should come next?
Answer: 15
Explanation:
This is a simple alternating subtraction series, which subtracts 2, then 5.
11. 9 16 23 30 37 44 51
Answer: 58 65
Explanation:
Here is a simple addition series, which begins with 9 and adds 7.
12. 2 8 14 20 26 32 38
Answer: 44 50
Explanation:
This is a simple addition series, which begins with 2 and adds 6.
13. 9 11 33 13 15 33 17
Answer: 19 33
Explanation:
In this alternating repetition series, a random number, 33, is interpolated every third number into a simple addition series, in which each number increases by 2.
14.2 3 4 5 6 4 8
Answer: 9 4
Explanation:
This is an alternating addition series with a random number, 4, interpolated as every third number. In the main series, 1 is added, then 2 is added, then 1, then 2, and so on.
15. 17 17 34 20 20 31 23
Answer: 23 28
Explanation:
This is an alternating subtraction series with repetition. There are two different patterns here. In the first, a number repeats itself; then 3 is added to that number to arrive at the next number, which also repeats. This gives the series 17, 17, 20, 20, 23, and so on. Every third number follows a second pattern, in which 3 is subtracted from each number to arrive at the next: 34, 31, 28.
16. 6 20 8 14 10 8 12
Answer: 2 14
Explanation:
This is an alternating addition and subtraction series. In the first pattern, 2 is added to each number to arrive at the next; in the alternate pattern, 6 is subtracted from each number to arrive at the next.
17. 21 25 18 29 33 18
Answer: 37 41
Explanation:
This is a simple addition series with a random number, 18, interpolated as every third number. In the series, 4 is added to each number except 18, to arrive at the next number.
18. 75 65 85 55 45 85 35 Answer: 25 85 Explanation: This is a simple subtraction series in which a random number, 85, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next. |
19. 11 16 21 26 31 36 41
Answer: 46 51
Explanation:
In this simple addition series, each number is 5 more than the previous number.
20. 42 40 38 35 33 31 28
Answer: 26 24
Explanation:
This is an alternating subtraction series in which 2 is subtracted twice, then 3 is subtracted once, then 2 is subtracted twice, and so on.
21. 6 10 14 18 22 26 30
Answer: 34 38
Explanation:
This simple addition series adds 4 to each number to arrive at the next.
22. 8 12 9 13 10 14 11
Answer: 15 12
Explanation:
This is an alternating addition and subtraction series, in which the addition of 4 is alternated with the subtraction of 3.
23. 36 31 29 24 22 17 15
Answer: 10 8
Explanation:
This is an alternating subtraction series, which subtracts 5, then 2, then 5, and so on.
24. 3 5 35 10 12 35 17
Answer: 19 35
Explanation:
This is an alternating addition series, with a random number, 35, interpolated as every third number. The pattern of addition is to add 2, add 5, add 2, and so on. The number 35 comes after each "add 2" step
25.13 29 15 26 17 23 19
Answer: 20 21
Explanation:
Here, there are two alternating patterns, with every other number following a different pattern. The first pattern begins with 13 and adds 2 to each number to arrive at the next; the alternating pattern begins with 29 and subtracts 3 each time.
26. 14 14 26 26 38 38 50
Answer: 50 62
Explanation:
In this simple addition with repetition series, each number in the series repeats itself, and then increases by 12 to arrive at the next number.
27. 44 41 38 35 32 29 26
Answer: 23 20
Explanation:
This is a simple subtraction series, in which 3 is subtracted from each number to arrive at the next.
28. 34 30 26 22 18 14 10
Answer: 6 2
Explanation:
This is a simple subtraction series, in which 4 is subtracted from each number to arrive at the next.
29. 32 31 32 29 32 27 32
Answer: 25 32
Explanation:
This is an alternating repetition series. The number 32 alternates with a series in which each number decreases by 2.
30. Look at this series: VI, 10, V, 11, __, 12, III, ... What number should fill the blank?
Answer: IV
Explanation:
This is an alternating addition and subtraction series. Roman numbers alternate with Arabic numbers. In the Roman numeral pattern, each number decreases by 1. In the Arabic numeral pattern, each number increases by 1.
31. Look at this series: (1/9), (1/3), 1, ____ , 9, ... What number should fill the blank?
Answer: 3
Explanation:
This is a multiplication series; each number is 3 times the previous number.
32. Look at this series: 83, 73, 93, 63, __, 93, 43, ... What number should fill the blank?
Answer: 53
Explanation:
This is a simple subtraction series in which a random number, 93, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next.
33. Look at this series: 15, __, 27, 27, 39, 39, ... What number should fill the blank?
Answer: 15
Explanation:
In this simple addition with repetition series, each number in the series repeats itself, and then increases by 12 to arrive at the next number.
34. Look at this series: 72, 76, 73, 77, 74, __, 75, ... What number should fill the blank?
Answer: 78
Explanation:
This series alternates the addition of 4 with the subtraction of 3.
35.Look at this series: J14, L16, __, P20, R22, ... What number should fill the blank?
Answer: N18
Explanation:
In this series, the letters progress by 2, and the numbers increase by 2.
36.Look at this series: 4, 7, 25, 10, __, 20, 16, 19, ... What number should fill the blank?
Answer: 13
Explanation:
Two series alternate here, with every third number following a different pattern. In the main series, 3 is added to each number to arrive at the next. In the alternating series, 5 is subtracted from each number to arrive at the next.
37. Look at this series: XXIV, XX, __, XII, VIII, ... What number should fill the blank?
Answer: XVI
Explanation:
This is a simple subtraction series; each number is 4 less than the previous number.
38. Look at this series: 0.15, 0.3, ____, 1.2, 2.4, ... What number should fill the blank?
Answer: 0.6
Explanation:
This is a simple multiplication series. Each number is 2 times greater than the previous number.
39.Look at this series: U32, V29, __, X23, Y20, ... What number should fill the blank?
Answer: W26
Explanation:
In this series, the letters progress by 1; the numbers decrease by 3.
PROBLEMS ON TRAINS
1. A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
Answer: 150m
Explanation:
Speed= |
| 60 x | 5 | m/sec | = |
| 50 | m/sec. |
18 | 3 |
Length of the train = (Speed x Time) = |
| 50 | x 9 | m = 150 m. |
3 |
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2. The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:
Answer: 245m
Explanation:
Speed = |
| 45 x | 5 | m/sec | = |
| 25 | m/sec. |
18 | 2 |
Time = 30 sec.
Let the length of bridge be x metres.
2(130 + x) = 750
x = 245 m.
3. Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is:
Answer: 3/2
Explanation:
Let the speeds of the two trains be x m/sec and y m/sec respectively.
Then, length of the first train = 27x metres,
and length of the second train = 17y metres.
27x + 17y = 23x + 23y
4x = 6y
4. A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
Answer: 240m
Explanation:
Speed = |
| 54 x | 5 | m/sec = 15 m/sec. |
18 |
Length of the train = (15 x 20)m = 300 m.
Let the length of the platform be x metres.
x + 300 = 540
x = 240 m.
5.A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
Answer: 89sec
Explanation:
Speed = |
| 240 | m/sec = 10 m/sec. |
24 |
Required time = |
| 240 + 650 | sec = 89 sec. |
10 |
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6.A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
Answer: 40sec
Explanation:
Formula for converting from km/hr to m/s: X km/hr = |
| X x | 5 |
| m/s. |
18 |
Therefore, Speed = |
| 45 x | 5 | m/sec | = | 25 | m/sec. |
18 | 2 |
Total distance to be covered = (360 + 140) m = 500 m
Required time = |
| 500 x 2 | sec | = 40 sec. |
25 |
7. Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:
Answer: 50m
Explanation:
Let the length of each train be x metres.
Then, distance covered = 2x metres.
Relative speed = (46 - 36) km/hr
2x = 100
x = 50.
8. Two trains are moving in opposite directions @ 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is:
Answer: 48sec
Explanation:
Relative speed = (60+ 90) km/hr
Distance covered = (1.10 + 0.9) km = 2 km = 2000 m.
Required time = |
| 2000 x | 3 | sec = 48 sec. |
125 |
9.A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?
Answer: 36sec
Explanation:
Speed of train relative to jogger = (45 - 9) km/hr = 36 km/hr.
= 10 m/sec.
Distance to be covered = (240 + 120) m = 360 m.
Time taken = |
| 360 | sec | = 36 sec. |
10 |
10. A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train?
Answer: 230m
Explanation:
Relative speed = (120 + 80) km/hr
Let the length of the other train be x metres.
x + 270 = 500
x = 230.
11. A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?
Answer: 270m
Explanation:
Speed = |
| 72 x | 5 | m/sec | = 20 m/sec. |
18 |
Time = 26 sec.
Let the length of the train be x metres.
x + 250 = 520
x = 270.
12. Two trains, each 100 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is:
Answer: 60km/hr
Explanation:
Let the speed of the slower train be x m/sec.
Then, speed of the faster train = 2x m/sec.
Relative speed = (x + 2x) m/sec = 3x m/sec.
24x = 200
So, speed of the faster train = | 50 | m/sec |
3 |
= 60 km/hr.
13.Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is:
Answer: 10.8sec
Explanation:
Relative speed = (60 + 40) km/hr = |
| 100 x | 5 | m/sec | = |
| 250 | m/sec. |
18 | 9 |
Distance covered in crossing each other = (140 + 160) m = 300 m.
Required time = |
| 300 x | 9 | sec | = | 54 | sec = 10.8 sec. |
250 | 5 |
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14. A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
Answer: 6sec
Explanation:
Speed of train relative to man = (60 + 6) km/hr = 66 km/hr.
Time taken to pass the man = |
| 110 x | 3 | sec = 6 sec. |
55 |
15.A train travelling at a speed of 75 mph enters a tunnel 3 miles long. The train is 3 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?
Answer: 3min
Explanation:
16. A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
Answer: 500m
Explanation:
Speed = |
| 78 x | 5 |
| m/sec | = |
| 65 |
| m/sec. |
18 | 3 |
Time = 1 minute = 60 seconds.
Let the length of the tunnel be x metres.
3(800 + x) = 3900
x = 500.
17. A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
Answer: 350m
Explanation:
Speed = |
| 300 |
| m/sec = | 50 | m/sec. |
18 | 3 |
Let the length of the platform be x metres.
3(x + 300) = 1950
x = 350 m.
18. A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is:
Answer: 150m
Explanation:
Let the length of the train be x metres and its speed by y m/sec.
15(x + 100) = 25x
15x + 1500 = 25x
1500 = 10x
x = 150 m.
19. A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?
Explanation:
Let the length of the train be x metres and its speed by y m/sec.
8y + 264 = 20y
y = 22.
Speed = 22 m/sec = |
| 22 x | 18 |
| km/hr = 79.2 km/hr. |
5 |
20. How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?
Answer: 30sec
Explanation:
Speed of the train relative to man | = (63 - 3) km/hr |
| = 60 km/hr |
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Time taken to pass the man |
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21. Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.
Answer: 24sec
Explanation:
Relative speed = | = (45 + 30) km/hr |
|
|
|
|
We have to find the time taken by the slower train to pass the DRIVER of the faster train and not the complete train.
So, distance covered = Length of the slower train.
Therefore, Distance covered = 500 m.
Required time = |
| 500 x | 6 |
| = 24 sec. |
125 |
22. Two trains are running in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then the speed of each train (in km/hr) is:
Answer: 36km/hr
Explanation:
Let the speed of each train be x m/sec.
Then, relative speed of the two trains = 2x m/sec.
2x = 20
x = 10.
Speed of each train = 10 m/sec = |
| 10 x | 18 |
| km/hr = 36 km/hr. |
5 |
23. Two trains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 metres, in what time (in seconds) will they cross each other travelling in opposite direction?
Answer: 12sec
Explanation:
Speed of the first train = |
| 120 |
| m/sec = 12 m/sec. |
10 |
Speed of the second train = |
| 120 |
| m/sec = 8 m/sec. |
15 |
Relative speed = (12 + 8) = 20 m/sec.
Required time = |
| (120 + 120) |
| sec = 12 sec. |
20 |
24. A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is:
Answer: 82km/hr
Explanation:
Let the speed of the second train be x km/hr.
Relative speed | = (x + 50) km/hr |
|
|
|
|
Distance covered = (108 + 112) = 220 m.
250 + 5x = 660
x = 82 km/hr.
25. A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:
Answer: 50km/hr
Explanation:
Speed of the train relative to man = |
| 125 | m/sec |
10 |
= 45 km/hr.
Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.
x - 5 = 45
x = 50 km/hr.
TIME AND DISTANCE
In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:
|
Answer: 1hr Explanation: Let the duration of the flight be x hours. Then, | 600 | - | 600 | = 200 | x | x + (1/2) |
x(2x + 1) = 3 2x2 + x - 3 = 0 (2x + 3)(x - 1) = 0 x = 1 hr. [neglecting the -ve value of x]
|
2. | A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km. |
Answer: 224km Explanation:
15x = 168 x 20
|
3. | The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 kms in 4 hours, then the speed of the first train is: |
Answer: 87.5km/hr Explanation: Let the speed of two trains be 7x and 8x km/hr.
Speed of first train = (7 x 12.5) km/hr = 87.5 km/hr.
|
| 4. A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is: |
Answer: 71.11km/hr Explanation: Total time taken = |
| 160 | + | 160 | hrs. | = | 9 | hrs. | 64 | 80 | 2 |
Average speed = |
| 320 x | 2 | km/hr | = 71.11 km/hr. | 9 |
|
|
5. A car travelling with 5/7 of its actual speed covers 42 km in 1 hr 40 min 48 sec. Find the actual speed of the car. |
Answer: 35km/hr Explanation: Time taken = 1 hr 40 min 48 sec = 1 hr 40 | 4 | min = 1 | 51 | hrs = | 126 | hrs. | 5 | 75 | 75 |
Let the actual speed be x km/hr.
x = |
| 42 x 7 x 75 |
| = 35 km/hr. | 5 x 126 |
|
|
6. In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is: |
Answer: 5km/hr Explanation: Let Abhay's speed be x km/hr. 6x = 30 x = 5 km/hr.
|
7. | Robert is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph, he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M.? |
Answer: 12kmph Explanation: Let the distance travelled by x km. 3x - 2x = 60 x = 60 km. Time taken to travel 60 km at 10 km/hr = |
| 60 | hrs | = 6 hrs. | 10 |
So, Robert started 6 hours before 2 P.M. i.e., at 8 A.M. Required speed = |
| 60 | kmph. | = 12 kmph. | 5 |
|
8. | It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is: |
Answer: 3:4 Explanation: Let the speed of the train be x km/hr and that of the car be y km/hr. Then, | 120 | + | 480 | = 8 🡪 | 1 | + | 4 | = | 1 | ....(i) | x | y | x | y | 15 |
And, | 200 | + | 400 | = | 25 | 🡪 | 1 | + | 2 | = | 1 | ....(ii) | x | y | 3 | x | y | 24 |
Solving (i) and (ii), we get: x = 60 and y = 80. Ratio of speeds = 60 : 80 = 3 : 4.
|
9. | A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot @ 4 km/hr and partly on bicycle @ 9 km/hr. The distance travelled on foot is: |
Answer: 16km Explanation: Let the distance travelled on foot be x km. Then, distance travelled on bicycle = (61 -x) km. 🡪9x + 4(61 -x) = 9 x 36 🡪5x = 80 🡪x = 16 km.
|
10 | .A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. The distance (in km) is: |
Answer: 40 Explanation: Let distance = x km and usual rate = y kmph. Then, | x | - | x | = | 40 | 🡪 2y(y + 3) = 9x ....(i) | y | y + 3 | 60 |
And, | x | - | x | = | 40 | 🡪 y(y - 2) = 3x ....(ii) | y -2 | y | 60 |
On dividing (i) by (ii), we get: x = 40. |
11. A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour? |
Answer: 7.2km/hr Explanation: = 2 m/sec. Converting m/sec to km/hr (see important formulas section) = 7.2 km/hr.
|
12 | An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1(2/3) hours, it must travel at a speed of: |
Answer: 720km/hr Explanation: Distance = (240 x 5) = 1200 km. Speed = Distance/Time Speed = 1200/(5/3) km/hr. [We can write 1(2/3) hours as 5/3 hours] Required speed = | 1200 x | 3 | km/hr | = 720 km/hr. | 5 |
|
13 |
If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is: |
Answer: 50km Explanation: Let the actual distance travelled be x km.
🡪14x = 10x + 200 🡪4x = 200 🡪x = 50 km.
|
14 | A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is: |
Answer: 120kmph Explanation: Let speed of the car be x kmph. Then, speed of the train = | 150 | x | = | 🡪 | 3 | x | kmph. | 100 | 2 |
🡪 | 75 | - | 75 | = | 125 | x | (3/2)x | 10 x 60 |
🡪x = | 25 x 24 | = 120 kmph. | 5 |
|
15. | Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour? |
Answer: 10min Explanation: Due to stoppages, it covers 9 km less. Time taken to cover 9 km = |
| 9 | x 60 | min | = 10 min. | 54 |
|
HEIGHT AND DISTANCE
1. Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30º and 45º respectively. If the lighthouse is 100 m high, the distance between the two ships is: |
Answer: 273m Explanation: Let AB be the lighthouse and C and D be the positions of the ships.  Then, AB = 100 m, ∠ACB = 30º and ∠ADB = 45º. AB | = tan 30º = | 1 | AC = AB x 3 = 1003 m. | AC | 3 |
AB | = tan 45º = 1 AD = AB = 100 m. | AD |
CD = (AC + AD) | = (1003 + 100) m |
| = 100(3 + 1) |
| = (100 x 2.73) m |
| = 273 m. |
|
2. | A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30º with the man's eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60º. What is the distance between the base of the tower and the point P? |
Answer: Data is inadequate. Explanation: One of AB, AD and CD must have given.  So, the data is inadequate.
|
3. | The angle of elevation of a ladder leaning against a wall is 60º and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is: |
Answer: 9.2m Explanation: Let AB be the wall and BC be the ladder.  Then, ∠ACB = 60º and AC = 4.6 m.
BC | = 2 x AC |
| = (2 x 4.6) m |
| = 9.2 m. |
|
4. | An observer 1.6 m tall is 203 away from a tower. The angle of elevation from his eye to the top of the tower is 30º. The heights of the tower is: |
Answer: 21.6m Explanation: Let AB be the observer and CD be the tower.  Draw BE perpendicular to CD. Then, CE = AB = 1.6 m, BE = AC = 203 m.
CD = CE + DE = (1.6 + 20) m = 21.6 m.
|
5. | From a point P on a level ground, the angle of elevation of the top tower is 30º. If the tower is 100 m high, the distance of point P from the foot of the tower is: |
Answer: 173m Explanation: Let AB be the tower.  Then, ∠APB = 30º and AB = 100 m.
AP | = (AB x 3) m |
| = 1003 m |
| = (100 x 1.73) m |
| = 173 m.
|
|
6. The angle of elevation of the sun, when the length of the shadow of a tree 3 times the height of the tree, is:
Answer: 30º.
Explanation:
Let AB be the tree and AC be its shadow.

Let ∠ACB =θ.
Then, | AC | = | √3 🡪 cot θ = √3 |
AB |
🡪 θ = 30º.
TIME AND WORK
1.If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:
Answer: 4days
Explanation:
Let 1 man's 1 day's work = x and 1 boy's 1 day's work = y.
Then, 6x + 8y = | 1 | and 26x + 48y = | 1 | . |
10 | 2 |
Solving these two equations, we get : x = | 1 | and y = | 1 | . |
100 | 200 |
(15 men + 20 boy)'s 1 day's work = |
| 15 | + | 20 |
| = | 1 | . |
100 | 200 | 4 |
🡪 15 men and 20 boys can do the work in 4 days.
A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?
Answer: 12hrs
Explanation:
(B + C)'s 1 hour's work = | 1 | ; |
3 |
(A + C)'s 1 hour's work = | 1 | . |
2 |
(A + B + C)'s 1 hour's work = |
| 1 | + | 1 |
| = | 7 | . |
4 | 3 | 12 |
B's 1 hour's work = |
| 7 | - | 1 |
| = | 1 | . |
12 | 2 | 12 |
🡪B alone will take 12 hours to do the work.
A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:
Answer: 25days
Explanation:
(A + B)'s 1 day's work = | 1 |
10 |
(A + B + C)'s 1 day's work = |
| 1 | + | 1 |
| = | 6 | = | 3 | . .... (i) |
10 | 50 | 50 | 25 |
A's 1 day's work = (B + C)'s 1 day's work .... (ii)
From (i) and (ii), we get: 2 x (A's 1 day's work) = | 3 |
|
25 |
🡪A's 1 day's work = | 3 | . |
50 |
|
|
|
|
|
|
|
|
|
🡪B's 1 day's work | 1 | - | 3 | = | 2 | = | 1 | . |
10 | 50 | 50 | 25 |
So, B alone could do the work in 25 days.
A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?
Explanation:
Whole work is done by A in |
| 20 x | 5 |
| = 25 days. |
4 |
Now, |
| 1 - | 4 |
| i.e., | 1 | work is done by A and B in 3 days. |
5 | 5 |
Whole work will be done by A and B in (3 x 5) = 15 days.
A's 1 day's work = | 1 | , (A + B)'s 1 day's work = | 1 | . |
25 | 15 |
B's 1 day's work = |
| 1 | - | 1 |
| = | 4 | = | 2 | . |
15 | 25 | 150 | 75 |
So, B alone would do the work in | 75 | = 37 | 1 | days. |
2 | 2 |
A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?
Answer: Around 1 P.M
Explanation:
(P + Q + R)'s 1 hour's work = |
| 1 | + | 1 | + | 1 |
| = | 37 | . |
8 | 10 | 12 | 120 |
Work done by P, Q and R in 2 hours = |
| 37 | x 2 |
| = | 37 | . |
120 | 60 |
Remaining work = |
| 1 - | 37 |
| = | 23 | . |
60 | 60 |
(Q + R)'s 1 hour's work = |
| 1 | + | 1 |
| = | 11 | . |
10 | 12 | 60 |
Now, | 11 | work is done by Q and R in 1 hour. |
60 |
So, | 23 | work will be done by Q and R in |
| 60 | x | 23 |
| = | 23 | hours 🡪 2 hours. |
60 | 11 | 60 | 11 |
So, the work will be finished approximately 2 hours after 11 A.M., i.e., around 1 P.M.
6. P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?
Explanation:
P can complete the work in (12 x 8) hrs. = 96 hrs.
Q can complete the work in (8 x 10) hrs. = 80 hrs.
P's1 hour's work = | 1 | and Q's 1 hour's work = | 1 | . |
96 | 80 |
(P + Q)'s 1 hour's work = |
| 1 | + | 1 |
| = | 11 | . |
96 | 80 | 480 |
So, both P and Q will finish the work in |
| 480 |
| hrs. |
11 |
Number of days of 8 hours each = |
| 480 | x | 1 |
| = | 60 | days = 5 | 5 | days. |
11 | 8 | 11 | 11 |
7. A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?
Answer: 6days
Explanation:
B's 10 day's work = |
| 1 | x 10 |
| = | 2 | . |
15 | 3 |
Remaining work = |
| 1 - | 2 |
| = | 1 | . |
3 | 3 |
Now, | 1 | work is done by A in 1 day. |
18 |
| 1 | work is done by A in |
| 18 x | 1 |
| = 6 days. |
3 | 3 |
8. 4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?
Answer: 40days
Explanation:
Let 1 man's 1 day's work = x and 1 woman's 1 day's work = y.
Then, 4x + 6y = | 1 | and 3x + 7y = | 1 | . |
8 | 10 |
Solving the two equations, we get: x = | 11 | , y = | 1 |
400 | 400 |
1 woman's 1 day's work = | 1 | . |
400 |
10 women's 1 day's work = |
| 1 | x 10 |
| = | 1 | . |
400 | 40 |
Hence, 10 women will complete the work in 40 days.
9. A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work?
Answer: 60days
Explanation:
(A + B)'s 20 day's work = |
| 1 | x 20 |
| = | 2 | . |
30 | 3 |
Remaining work = |
| 1 - | 2 |
| = | 1 | . |
3 | 3 |
Now, | 1 | work is done by A in 20 days. |
3 |
Therefore, the whole work will be done by A in (20 x 3) = 60 days.
10. 10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?
Answer: 7days.
Explanation:
1 woman's 1 day's work = | 1 |
70 |
1 child's 1 day's work = | 1 |
140 |
(5 women + 10 children)'s day's work = |
| 5 | + | 10 |
| = |
| 1 | + | 1 |
| = | 1 |
70 | 140 | 14 | 14 | 7 |
5 women and 10 children will complete the work in 7 days.
11. X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?
Answer: 10days
Explanation:
Work done by X in 4 days = |
| 1 | x 4 |
| = | 1 | . |
20 | 5 |
Remaining work = |
| 1 - | 1 |
| = | 4 | . |
5 | 5 |
(X + Y)'s 1 day's work = |
| 1 | + | 1 |
| = | 8 | = | 2 | . |
20 | 12 | 60 | 15 |
Now, | 2 | work is done by X and Y in 1 day. |
15 |
So, | 4 | work will be done by X and Y in |
| 15 | x | 4 |
| = 6 days. |
5 | 2 | 5 |
Hence, total time taken = (6 + 4) days = 10 days.
12. A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?
Answer: 13days
Explanation:
Ratio of times taken by A and B = 100 : 130 = 10 : 13.
Suppose B takes x days to do the work.
Then, 10 : 13 :: 23 : x 🡪 x = |
| 23 x 13 |
| 🡪 x = | 299 | . |
10 | 10 |
(A + B)'s 1 day's work = |
| 1 | + | 10 |
| = | 23 | = | 1 | . |
23 | 299 | 299 | 13 |
Therefore, A and B together can complete the work in 13 days.
13. Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
Answer: 8 hours 15 minutes
Explanation:
Number of pages typed by Ravi in 1 hour = | 32 | = | 16 | . |
6 | 3 |
Number of pages typed by Kumar in 1 hour = | 40 | = 8. |
5 |
Number of pages typed by both in 1 hour = |
| 16 | + 8 |
| = | 40 | . |
3 | 3 |
🡪Time taken by both to type 110 pages = |
| 110 x | 3 |
| hours |
40 |
= 8 | 1 | hours (or) 8 hours 15 minutes. |
4 |
14. A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the same work in:
Explanation:
Formula: If A can do a piece of work in n days, then A's 1 day's work = | 1 | . |
n |
(A + B + C)'s 1 day's work = |
| 1 | + | 1 | + | 1 |
| = | 7 | . |
24 | 6 | 12 | 24 |
Formula: If A's 1 day's work = | 1 | , | then A can finish the work in n days. |
n |
So, all the three together will complete the job in |
| 24 | days | = | 3 | 3 | days. |
7 | 7 |
15. Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:
Answer: 16days
Explanation:
Ratio of times taken by Sakshi and Tanya = 125 : 100 = 5 : 4.
Suppose Tanya takes x days to do the work.
5 : 4 :: 20 : x 🡪 x = |
| 4 x 20 |
|
5 |
🡪x = 16 days.
Hence, Tanya takes 16 days to complete the work.
16. A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:
Answer: 6days
Explanation:
Suppose A, B and C take x, | x | and | x | days respectively to finish the work. |
2 | 3 |
x = 12.
So, B takes (12/2) = 6 days to finish the work.
17. A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :
Answer: 12days
Explanation:
(A + B)'s 1 day's work = |
| 1 | + | 1 |
| = | 1 | . |
15 | 10 | 6 |
Work done by A and B in 2 days = |
| 1 | x 2 |
| = | 1 | . |
6 | 3 |
Remaining work = |
| 1 - | 1 |
| = | 2 | . |
3 | 3 |
Now, | 1 | work is done by A in 1 day. |
15 |
| 2 | work will be done by a in |
| 15 x | 2 |
| = 10 days. |
3 | 3 |
Hence, the total time taken = (10 + 2) = 12 days.
18.A and B can do a piece of work in 30 days, while B and C can do the same work in 24 days and C and A in 20 days. They all work together for 10 days when B and C leave. How many days more will A take to finish the work?
Answer: 18days
Explanation:
2(A + B + C)'s 1 day's work = |
| 1 | + | 1 | + | 1 |
| = | 15 | = | 1 | . |
30 | 24 | 20 | 120 | 8 |
Therefore, (A + B + C)'s 1 day's work = | 1 | = | 1 | . |
2 x 8 | 16 |
Work done by A, B, C in 10 days = | 10 | = | 5 | . |
16 | 8 |
Remaining work = |
| 1 - | 5 |
| = | 3 | . |
8 | 8 |
A's 1 day's work = |
| 1 | - | 1 |
| = | 1 | . |
16 | 24 | 48 |
Now, | 1 | work is done by A in 1 day. |
48 |
So, | 3 | work will be done by A in | ( | 48 x | 3 | ) | = 18 days. |
8 | 8 |
19.A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in :
Answer: 4days
Explanation:
Ratio of rates of working of A and B = 2 : 1.
So, ratio of times taken = 1 : 2.
A's 1 day's work = | 1 | ; (2 times of B's work) |
6 |
(A + B)'s 1 day's work = |
| 1 | + | 1 |
| = | 3 | = | 1 | . |
6 | 12 | 12 | 4 |
So, A and B together can finish the work in 4 days.
20.Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?
Answer: 4:3
Explanation:
(20 x 16) women can complete the work in 1 day.
1 woman's 1 day's work = | 1 | . |
320 |
(16 x 15) men can complete the work in 1 day.
1 man's 1 day's work = | 1 |
240 |
So, required ratio |
|
|
|
| = 4 : 3 (cross multiplied) |
21.A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
Explanation:
(A + B)'s 1 day's work = |
| 1 | + | 1 |
| = | 7 | . |
15 | 20 | 60 |
(A + B)'s 4 day's work = |
| 7 | x 4 |
| = | 7 | . |
60 | 15 |
Therefore, Remaining work = |
| 1 - | 7 |
| = | 8 | . |
15 | 15 |
22.A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:
Explanation:
(A + B + C)'s 1 day's work = | 1 | , |
4 |
C's 1 day's work = | 1 | - | ( | 1 | + | 1 | ) | = | ( | 1 | - | 7 | ) | = | 5 | . |
4 | 16 | 12 | 4 | 48 | 48 |
So, C alone can do the work in | 48 | = 9 | 3 | days. |
5 | 5 |
23. A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?
Answer: 15days
Explanation:
A's 2 day's work = |
| 1 | x 2 |
| = | 1 | . |
20 | 10 |
|
|
|
|
|
|
|
|
(A + B + C)'s 1 day's work = |
| 1 | + | 1 | + | 1 |
| = | 6 | = | 1 | . |
20 | 30 | 60 | 60 | 10 |
Work done in 3 days = |
| 1 | + | 1 |
| = | 1 | . |
10 | 10 | 5 |
Now, | 1 | work is done in 3 days. |
5 |
🡪Whole work will be done in (3 x 5) = 15 days.
24.A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
Explanation:
Ratio of times taken by A and B = 1 : 3.
The time difference is (3 - 1) 2 days while B take 3 days and A takes 1 day.
If difference of time is 2 days, B takes 3 days.
If difference of time is 60 days, B takes |
| 3 | x 60 |
| = 90 days. |
2 |
So, A takes 30 days to do the work.
(A + B)'s 1 day's work = |
| 1 | + | 1 |
| = | 4 | = | 2 |
30 | 90 | 90 | 45 |
A and B together can do the work in | 45 | = 22 | 1 | days. |
2 | 2 |
25. A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?
Answer: Rs.400
Explanation:
C's 1 day's work = | 1 | - |
| 1 | + | 1 |
| = | 1 | - | 7 | = | 1 | . |
3 | 6 | 8 | 3 | 24 | 24 |
A's wages : B's wages : C's wages = | 1 | : | 1 | : | 1 | = 4 : 3 : 1. |
6 | 8 | 24 |
C's share (for 3 days) = Rs. |
| 3 x | 1 | x 3200 |
| = Rs. 400. |
24 |
PROBLEMS ON AGES
1.A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?
Answer: 10years
Explanation:
Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years.
(2x + 2) + 2x + x = 27
5x = 25
x = 5.
Hence, B's age = 2x = 10 years.
2.A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is:
Answer: 22years
Explanation:
Let the son's present age be x years. Then, man's present age = (x + 24) years.
(x + 24) + 2 = 2(x + 2)
x + 26 = 2x + 4
x = 22.
3. Six years ago, the ratio of the ages of Kunal and Sagar was 6 : 5. Four years hence, the ratio of their ages will be 11 : 10. What is Sagar's age at present?
Answer: 16years
Explanation:
Let the ages of Kunal and Sagar 6 years ago be 6x and 5x years respectively.
Then, | (6x + 6) + 4 | = | 11 |
(5x + 6) + 4 | 10 |
10(6x + 10) = 11(5x + 10)
5x = 10
x = 2.
Sagar's present age = (5x + 6) = 16 years.
4.The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be:
Answer: 20years
Explanation:
Let the present ages of son and father be x and (60 -x) years respectively.
Then, (60 - x) - 6 = 5(x - 6)
54 - x = 5x - 30
6x = 84
x = 14.
Son's age after 6 years = (x+ 6) = 20 years.
5.At present, the ratio between the ages of Arun and Deepak is 4 : 3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present ?
Answer: 15years
Explanation:
Let the present ages of Arun and Deepak be 4x years and 3x years respectively. Then,
4x + 6 = 26
4x = 20
x = 5.
Deepak's age = 3x = 15 years.
Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?
Answer: 24.5years
Explanation:
Let Rahul's age be x years.
Then, Sachin's age = (x - 7) years.
9x - 63 = 7x
2x = 63
x = 31.5
Hence, Sachin's age =(x - 7) = 24.5 years.
The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years).
Answer: 16years,28years,36years.
Explanation:
Let their present ages be 4x, 7x and 9x years respectively.
Then, (4x - 8) + (7x - 8) + (9x - 8) = 56
20x = 80
x = 4.
Their present ages are 4x = 16 years, 7x = 28 years and 9x = 36 years respectively.
Ayesha's father was 38 years of age when she was born while her mother was 36 years old when her brother four years younger to her was born. What is the difference between the ages of her parents?
Answer: 6years
Explanation:
Mother's age when Ayesha's brother was born = 36 years.
Father's age when Ayesha's brother was born = (38 + 4) years = 42 years.
Required difference = (42 - 36) years = 6 years.
A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?
Answer: 40years
Explanation:
Let the mother's present age be x years.
Then, the person's present age = |
| 2 | x | | years. |
5 |
2(2x + 40) = 5(x + 8)
x = 40.
Q is as much younger than R as he is older than T. If the sum of the ages of R and T is 50 years, what is definitely the difference between R and Q's age?
Answer: Cannot be determined.
Explanation:
R - Q = R- T
Q = T.
Also, R + T = 50
R + Q = 50.
So, (R - Q) cannot be determined.
11.The age of father 10 years ago was thrice the age of his son. Ten years hence, father's age will be twice that of his son. The ratio of their present ages is:
Answer: 7:3
Explanation:
Let the ages of father and son 10 years ago be 3x and x years respectively.
Then, (3x + 10) + 10 = 2[(x + 10) + 10]
3x + 20 = 2x + 40
x = 20.
Required ratio = (3x + 10) : (x + 10) = 70 : 30 = 7 : 3.
12. A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?
Answer: 10years
Explanation:
Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years.
(2x + 2) + 2x + x = 27
5x = 25
x = 5.
Hence, B's age = 2x = 10 years.
13.Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit's age. After further 8 years, how many times would he be of Ronit's age?
Answer: 2
Explanation:
Let Ronit's present age be x years. Then, father's present age =(x + 3x) years = 4x years.
8x + 16 = 5x + 40
3x = 24
x = 8.
Hence, required ratio = | (4x + 16) | = | 48 | = 2. |
(x + 16) | 24 |
14.The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
Answer: 4years
Explanation:
Let the ages of children be x, (x + 3), (x + 6), (x + 9) and (x + 12) years.
Then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50
5x = 20
x = 4.
Age of the youngest child = x = 4 years.
15.A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, the son's age five years back was:
Answer: 14years
Explanation:
Let the son's present age be x years. Then, (38 - x) = x
2x = 38.
x = 19.
Son's age 5 years back (19 - 5) = 14 years.
16.Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years?
Answer: 24years
Explanation:
Let the present ages of Sameer and Anand be 5x years and 4x years respectively.
9(5x + 3) = 11(4x + 3)
45x + 27 = 44x + 33
45x - 44x = 33 - 27
x = 6.
Anand's present age = 4x = 24 years.
ALLIGATION OR MIXTURE
1.A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 litres of milk such that the ratio of water to milk is 3 : 5
Answer: 6litres
Explanation:
Let the cost of 1 litre milk be Re. 1
Milk in 1 litre mix. in 1st can = | 3 | litre, C.P. of 1 litre mix. in 1st can Re. | 3 |
4 | 4 |
Milk in 1 litre mix. in 2nd can = | 1 | litre, C.P. of 1 litre mix. in 2nd can Re. | 1 |
2 | 2 |
Milk in 1 litre of final mix. = | 5 | litre, Mean price = Re. | 5 |
8 | 8 |
By the rule of alligation, we have:
C.P. of 1 litre mixture in 1st can C.P. of 1 litre mixture in 2nd can |
(3/4) |
Mean Price (5/8) | (1/2) |
(1/8) | (1/8) |
Ratio of two mixtures = | 1 | : | 1 | = 1 : 1. |
8 | 8 |
So, quantity of mixture taken from each can = |
| 1 | x 12 |
| = 6 litres. |
2 |
In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg?
Answer: 7:3
Explanation:
By the rule of alligation:
Cost of 1 kg pulses of 1st kind Cost of 1 kg pulses of 2nd kind |
Rs 15 |
Mean Price Rs 16.50 | Rs 20 |
3.50 | 1.50 |
Required rate = 3.50 : 1.50 = 7 : 3.
A container contains 40 litres of milk. From this container 4 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container?
Answer: 29.16litres
Explanation:
Amount of milk left after 3 operations = |
| 40 |
| (1 - | 4 |
| ) | 3 litres |
40 |
= |
| 40 x | 9 | x | 9 | x | 9 |
| = 29.16 litres. |
10 | 10 | 10 |
A jar full of whisky contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced is:
Answer: 2/3
Explanation:
By the rule of alligation, we have:
Strength of first jar Strength of 2nd jar |
40% |
Mean Price Rs 16.50 | 19% |
7 | 14 |
So, ratio of 1st and 2nd quantities = 7 : 14 = 1 : 2
Required quantity replaced = | 2 |
3 |
|
|
In what ratio must water be mixed with milk to gain 16(2/3)% on selling the mixture at cost price?
Answer: 1:6
Explanation:
Let C.P. of 1 litre milk be Re. 1.
S.P. of 1 litre of mixture = Re.1, Gain = | 50 | %. |
3 |
C.P. of 1 litre of mixture = |
| (100 x | 3 | x 1) | | = | 6 |
350 | 7 |
By the rule of alligation, we have:
C.P. of 1 litre of water C.P. of 1 litre of milk |
0
| Mean Price
| Re. 1 |
1/7 | 6/7 |
Ratio of water and milk = | 1 | : | 6 | = 1 : 6. |
7 | 7 |
Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.
Answer: 2:3
Explanation:
By the rule of alligation:
Cost of 1 kg of 1st kind Cost of 1 kg of 2nd kind |
720p
| Mean Price
| 570p |
60 | 90 |
Required ratio = 60 : 90 = 2 : 3.
In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?
Answer: 3:2
Explanation:
S.P. of 1 kg of the mixture = Rs. 68.20, Gain = 10%.
C.P. of 1 kg of the mixture = Rs. |
| 100 | x 68.20 |
| = Rs. 62. |
110 |
By the rule of alligation, we have:
Cost of 1 kg tea of 1st kind. Cost of 1 kg tea of 2nd kind. |
Rs. 60 |
Mean Price Rs. 62 | Rs. 65 |
3 |
2 |
Required ratio = 3 : 2.
The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs. 20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is:
Answer: 18
Explanation:
Let the price of the mixed variety be Rs. x per kg.
By rule of alligation, we have:
Cost of 1 kg of Type 1 rice Cost of 1 kg of Type 2 rice |
Rs. 15 | Mean Price Rs. x | Rs. 20 |
(20 - x) | (x - 15) |
60 - 3x = 2x - 30
5x = 90
x = 18.
8 litres are drawn from a cask full of wine and is then filled with water. This operation is performed three more times. The ratio of the quantity of wine now left in cask to that of water is 16 : 81. How much wine did the cask hold originally?
Answer: 24
Explanation:
Let the quantity of the wine in the cask originally be x litres.
Then, quantity of wine left in cask after 4 operations = | x | | (1 - | 8 |
| )4 | litres. |
x |
3x - 24 = 2x
x = 24.
A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is:
Answer: 600kg
Explanation:
By the rule of alligation, we have:
Profit on 1st part Profit on 2nd part |
8% | Mean Profit 14% | 18% |
4 | 6 |
Ration of 1st and 2nd parts = 4 : 6 = 2 : 3
Quantity of 2nd kind = |
| 3 | x 1000 | kg | = 600 kg. |
5 |
A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?
Answer: 1/5
Explanation:
Suppose the vessel initially contains 8 litres of liquid.
Let x litres of this liquid be replaced with water.
Quantity of water in new mixture = |
| 3 - | 3x | + x |
| litres |
8 |
Quantity of syrup in new mixture = |
| 5 - | 5x |
| litres |
8 |
5x + 24 = 40 - 5x
10x = 16
So, part of the mixture replaced = |
| 8 | x | 1 |
| = | 1 | . |
5 | 8 | 5 |
Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be:
Answer: 175.50
Explanation:
Since first and second varieties are mixed in equal proportions.
So, their average price = Rs. |
| 126 + 135 |
| = Rs. 130.50 |
2 |
So, the mixture is formed by mixing two varieties, one at Rs. 130.50 per kg and the other at say, Rs. x per kg in the ratio 2 : 2, i.e., 1 : 1. We have to find x.
By the rule of alligation, we have:
Cost of 1 kg of 1st kind Cost of 1 kg tea of 2nd kind |
Rs. 130.50 | Mean Price Rs. 153 | Rs. x |
(x - 153) | 22.50 |
x - 153 = 22.50
x = 175.50
A can contains a mixture of two liquids A and B is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially?
Answer: 21litres
Explanation:
Suppose the can initially contains 7x and 5x of mixtures A and B respectively.
Quantity of A in mixture left = |
| 7x - | 7 | x 9 |
| litres = |
| 7x - | 21 | litres. |
12 | 4 |
Quantity of B in mixture left = |
| 5x - | 5 | x 9 |
| litres = |
| 5x - | 15 | litres. |
12 | 4 |
252x - 189 = 140x + 147
112x = 336
x = 3.
So, the can contained 21 litres of A.
A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is:
Answer: 20%
Explanation:
Let C.P. of 1 litre milk be Re. 1
Then, S.P. of 1 litre of mixture = Re. 1, Gain = 25%.
C.P. of 1 litre mixture = Re. |
| 100 | x 1 |
| = | 4 |
125 | 5 |
By the rule of alligation, we have:
C.P. of 1 litre of milk C.P. of 1 litre of water |
Re. 1 | Mean Price
| 0 |
|
|
Ratio of milk to water = | 4 | : | 1 | = 4 : 1. |
5 | 5 |
Hence, percentage of water in the mixture = |
| 1 | x 100 | % | = 20%. |
5 |
How many kilogram of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture at Rs. 9.24 per kg?
Answer: 63kg
Explanation:
S.P. of 1 kg of mixture = Rs. 9.24, Gain 10%.
C.P. of 1 kg of mixture = Rs. |
| 100 | x 9.24 |
| = Rs. 8.40 |
110 |
By the rule of allilation, we have:
C.P. of 1 kg sugar of 1st kind Cost of 1 kg sugar of 2nd kind |
Rs. 9 | Mean Price Rs. 8.40 | Rs. 7 |
1.40 | 0.60 |
Ratio of quantities of 1st and 2nd kind = 14 : 6 = 7 : 3.
Let x kg of sugar of 1st be mixed with 27 kg of 2nd kind.
Then, 7 : 3 = x : 27
CHAIN RULE
1. A man completes 5/8 of a job in 10 days. At this rate, how many more days will it takes him to finish the job?
Answer: 6days
Explanation:
Let the required number of days be x.
Then, | 5 | : | 3 | = :: 10 : x | 🡪 | 5 | x x = | 3 | x 10 |
8 | 8 | 8 | 8 |
🡪 x = 6.
2. If a quarter kg of potato costs 60 paise, how many paise will 200 gm cost?
Answer: 48
Explanation:
Let the required weight be x kg.
Less weight, Less cost (Direct Proportion)
250 : 200 :: 60 : x 🡪 250 x x = (200 x 60)
x = 48.
3. In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk?
Answer: 40
Explanation:
Let the required number of days be x.
Less cows, More days (Indirect Proportion)
Less bags, Less days (Direct Proportion)
Cows | 1 | : | 40 | } | :: 40 : x |
Bags | 40 | : | 1 |
1 x 40 x x = 40 x 1 x 40
x = 40.
4. A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions mad by the larger wheel is:
Answer: 9
Explanation:
Let the required number of revolutions made by larger wheel be x.
Then, More cogs, Less revolutions (Indirect Proportion)
14 : 6 :: 21 : x → 14 x x = 6 x 21
x = 9.
5. If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web in how many days?
Answer: 7
Explanation:
Let the required number days be x.
Less spiders, More days (Indirect Proportion)
Less webs, Less days (Direct Proportion)
Spiders | 1 | : | 7 | } | :: 7 : x |
Webs | 7 | : | 1 |
1 x 7 x x = 7 x 1 x 7
x = 7.
6. A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be:
Answer: 12.5
Explanation:
Let the height of the building x metres.
Less lengthy shadow, Less in the height (Direct Proportion)
40.25 : 28.75 :: 17.5 : x → 40.25 x x = 28.75 x 17.5
x = 12.5
7. In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with remaining meal?
Answer: 30men
Explanation:
There is a meal for 200 children. 150 children have taken the meal.
Remaining meal is to be catered to 50 children.
Now, 200 children ≅ 120 men.
50 children ≅ |
| 120 | x 50 |
| = 30 men. |
200 |
8. An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metres of cloth?
Answer: 195sec(approx)
Explanation:
Le the required time be x seconds.
More metres, More time (Direct Proportion)
0.128 : 25 :: 1 : x → 0.128x = 25 x 1
x = 195.31.
Required time = 195 sec (approximately).
9. 36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work?
Answer: 24
Explanation:
Let the required number of days be x.
Less men, More days (Indirect Proportion)
27 : 36 :: 18 : x → 27 x x = 36 x 18
x = 24.
10. 4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat-weavers in 8 days?
Answer: 16
Explanation:
Let the required number of bottles be x.
More weavers, More mats (Direct Proportion)
More days, More mats (Direct Proportion)
Wavers | 4 | : | 8 | } | :: 4 : x |
Days | 4 | : | 8 |
4 x 4 x x = 8 x 8 x 4
x = 16.
11.3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
Answer: 12
Explanation:
Let the required number of working hours per day be x.
More pumps, Less working hours per day (Indirect Proportion)
Less days, More working hours per day (Indirect Proportion)
4 x 1 x x = 3 x 2 x 8
x = 12.
12. If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate?
Answer: Rs.yd/x
Explanation:
Cost of x metres = Rs. d.
Cost of y metres = Rs. |
| d | x y |
| = Rs. | yd |
x | x |
13. Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
Answer: 1800
Explanation:
Let the required number of bottles be x.
More machines, More bottles (Direct Proportion)
More minutes, More bottles (Direct Proportion)
Machines | 6 | : | 10 | } | :: 270 : x |
Time (in minutes) | 1 | : | 4 |
6 x 1 x x = 10 x 4 x 270
x = 1800.
14. A fort had provision of food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last, is:
Answer: 42
Explanation:
After 10 days : 150 men had food for 35 days.
Suppose 125 men had food for x days.
Now, Less men, More days (Indirect Proportion)
125 : 150 :: 35 : x → 125 x x = 150 x 35
x = 42.
39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?
Answer: 13
Explanation:
Let the required number of days be x.
Less persons, More days (Indirect Proportion)
More working hours per day, Less days (Indirect Proportion)
Persons | 30 | : | 39 | } | :: 12 : x |
Working hours/day | 6 | : | 5 |
30 x 6 x x = 39 x 5 x 12
x = 13.
SIMPLE INTEREST
1.A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?
Answer: 6%
Explanation:
S.I. = Rs. (15500 - 12500) = Rs. 3000.
Rate = |
| 100 x 3000 | % | = 6% |
12500 x 4 |
2. A person takes a loan of Rs. 200 at 5% simple interest. He returns Rs. 100 at the end of 1 year. In order to clear his dues at the end of 2 years, he would pay:
Answer: Rs.115
Explanation:
Amount to be paid |
= Rs. |
| 100 + | 200 x 5 x 1 | + | 100 x 5 x 1 |
| 100 | 100 |
|
| = Rs. 115. |
3.An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:
Answer: 10.25%
Explanation:
Let the sum be Rs. 100. Then,
S.I. for first 6 months = Rs. |
| 100 x 10 x 1 |
| = Rs. 5 |
100 x 2 |
S.I. for last 6 months = Rs. |
| 105 x 10 x 1 |
| = Rs. 5.25 |
100 x 2 |
So, amount at the end of 1 year = Rs. (100 + 5 + 5.25) = Rs. 110.25
→ Effective rate = (110.25 - 100) = 10.25%
4. A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is:
Answer: 10%
Explanation:
Let the rate be R% p.a.
Then, |
| 5000 x R x 2 |
| + |
| 3000 x R x 4 |
| = 2200. |
100 | 100 |
100R + 120R = 2200
Rate = 10%.
5. A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest?
Answer: 3.46%
Explanation:
Let the original rate be R%. Then, new rate = (2R)%.
Note:
Here, original rate is for 1 year(s); the new rate is for only 4 months i.e. 1/3 year(s).
|
| 725 x R x 1 |
| + |
| 362.50 x 2R x 1 |
| = 33.50 |
100 | 100 x 3 |
→ (2175 + 725) R = 33.50 x 100 x 3
→ (2175 + 725) R = 10050
→ (2900)R = 10050
→ Original rate = 3.46%
6. A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:
Answer: Rs.15000
Explanation:
Principal = Rs. |
| 100 x 5400 |
| = Rs. 15000. |
12 x 3 |
7. A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:
Answer: 12%
Explanation:
S.I. for 3 years = Rs. (12005 - 9800) = Rs. 2205.
S.I. for 5 years = Rs. |
| 2205 | x 5 |
| = Rs. 3675 |
3 |
Principal = Rs. (9800 - 3675) = Rs. 6125.
Hence, rate = |
| 100 x 3675 | % | = 12% |
6125 x 5 |
8. What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?
Answer: 2:3
Explanation:
Let the principal be P and rate of interest be R%.
Required ratio = |
| = | 6PR | = | 2 : 3. |
| 9PR |
9. A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
Answer: Data is Inadequate
Explanation:
We need to know the S.I., principal and time to find the rate.
Since the principal is not given, so data is inadequate.
10. A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6(1/2) p.a for 2 years. Find his gain in the transaction per year.
Answer: Rs.112.50
Explanation:
Gain in 2 years |
= (Rs. |
|
| 5000 x | 25 | x | 2 | | )- | ( | 5000 x 4 x 2 | ) |
| 4 | 100 | 100 |
|
| = Rs. (625 - 400) |
| = Rs. 225. |
Gain in 1 year = Rs. |
| 225 |
| = Rs. 112.50 |
|
2 |
A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:
Answer: Rs.698
Explanation:
S.I. for 1 year = Rs. (854 - 815) = Rs. 39.
S.I. for 3 years = Rs.(39 x 3) = Rs. 117.
Principal = Rs. (815 - 117) = Rs. 698
12. Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
Answer: Rs.6400
Explanation:
Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 - x).
Then, |
| x x 14 x 2 | + | (13900 - x) x 11 x 2 | = 3508 |
100 | 100 |
28x - 22x = 350800 - (13900 x 22)
6x = 45000
x = 7500.
So, sum invested in Scheme B = Rs. (13900 - 7500) = Rs. 6400.
13. A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?
Answer: Rs. 8925
Explanation:
14. How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
Answer: 4years
Explanation:
Time = |
| 100 x 81 | years | = 4 years. |
450 x 4.5 |
15. Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest?
Answer: 6
Explanation:
Let rate = R% and time = R years.
Then, |
| 1200 x R x R |
| = 432 |
100 |
12R2 = 432
R2 = 36
R = 6.
COMPOUND INTEREST
1. What will be the compound interest on a sum of Rs. 25,000 after 3 years at the rate of 12 p.c.p.a.?
Answer: Rs.10123.20
Explanation:
Amount |
|
|
= Rs. |
| 25000 x | 28 | x | 28 | x | 28 |
| 25 | 25 | 25 |
|
| = Rs. 35123.20 |
C.I. = Rs. (35123.20 - 25000) = Rs. 10123.20
2. At what rate of compound interest per annum will a sum of Rs. 1200 become Rs. 1348.32 in 2 years?
Answer: 6%
Explanation:
Let the rate be R% p.a.
Then, 1200 x | ( | 1 + | R |
| )2 | = 1348.32 |
100 |
|
| (1 + | R |
| )2 | = | 134832 | = | 11236 |
100 | 120000 | 10000 |
R = 6%
3. The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is:
Answer: 4yrs
Explanation:
So, n = 4 years.
4. Albert invested an amount of Rs. 8000 in a fixed deposit scheme for 2 years at compound interest rate 5 p.c.p.a. How much amount will Albert get on maturity of the fixed deposit?
Answer: Rs.8820
Explanation:
5.The effective annual rate of interest corresponding to a nominal rate of 6% per annum payable half-yearly is:
Answer: 6.09%
Explanation:
Amount of Rs. 100 for 1 year when compounded half-yearly |
| = Rs. |
| 100 x |
| (1 + | 3 |
| )3 |
| = Rs. 106.09 |
100 |
→ Effective rate = (106.09 - 100)% = 6.09%
6. Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:
Answer: Rs.1750
Explanation:
C.I. |
= Rs. | 4000 x | (1 + | 10 | )3 | - 4000 | 100 |
|
|
= Rs. | 4000 x | 11 | x | 11 | - 4000 | 10 | 10 |
|
| = Rs. 840. |
Sum = Rs. | 420 x 100 | = Rs. 1750. |
3 x 8 |
|
|
|
7. If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same at the same rate and for the same time?
Answer: Rs.51.25
Explanation:
Sum = Rs. | 50 x 100 | = Rs. 500. |
2 x 5 |
C.I. = Rs. (551.25 - 500) = Rs. 51.25
8. The difference between simple interest and compound on Rs. 1200 for one year at 10% per annum reckoned half-yearly is:
Answer: Rs.3
Explanation:
S.I. = Rs | 1200 x 10 x 1 | = Rs. 120. |
100 |
C.I. = Rs. | 1200 x | (1 + | 5 | )2 | - 1200 | = Rs. 123. |
100 |
Difference = Rs. (123 - 120) = Rs. 3.
9. The difference between compound interest and simple interest on an amount of Rs. 15,000 for 2 years is Rs. 96. What is the rate of interest per annum?
Answer: 8%
Explanation:
| 
| 15000 x | 
| 1 + | R | 
| 2 | - 15000 | 
| - | 
| 15000 x R x 2 | 
| = 96 |
100 | 100 |
15000
| 
| 
| 1 + | R | 
| 2 | - 1 - | 2R | 
| = 96 |
100 | 100 |
15000
| 
| (100 + R)2 - 10000 - (200 x R) | 
| = 96 |
10000 |
R = 8.
Rate = 8%.
10. The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is:
Answer: Rs.500
Let the sum be Rs. P.
Sum = Rs . 2500.
So, S.I. = Rs. | 
| 2500 x 5 x 4 | 
| = Rs. 500 |
100 |
11.A bank offers 5% compound interest calculated on half-yearly basis. A customer deposits Rs. 1600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is:
Answer: Rs.121
Explanation:
Amount |
= Rs. | 
| 1600 x | 
| 1 + | 5 | 
| 2 | + 1600 x | 
| 1 + | 5 | 
| 
| 2 x 100 | 2 x 100 |
|
|
= Rs. | 
| 1600 x | 41 | x | 41 | + 1600 x | 41 | 
| 40 | 40 | 40 |
|
|
|
|
= Rs. | 
| 1600 x 41 x 81 | 
| 40 x 40 |
|
| = Rs. 3321. |
C.I. = Rs. (3321 - 3200) = Rs. 121
12. The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is:
Answer: Rs.625
Explanation:
Let the sum be Rs. x. Then,
C.I. = | 
| x | 
| 1 + | 4 | 
| 2 | - x | 
| = | 
| 676 | x | - x | 
| = | 51 | x. |
100 | 625 | 625 |
S.I. = | 
| x x 4 x 2 | 
| = | 2x | . |
100 | 25 |

| 51x | - | 2x | = 1 |
625 | 25 |
x = 625.
13. There is 60% increase in an amount in 6 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate?
Answer: 3972
Explanation:
Let P = Rs. 100. Then, S.I. Rs. 60 and T = 6 years.
R =
| 
| 100 x 60 | 
| = 10% p.a. |
100 x 6 |
Now, P = Rs. 12000. T = 3 years and R = 10% p.a.
C.I.
|
|
|
= Rs. | 
| 12000 x | 331 | 
| 1000 |
|
| = 3972. |
14.What is the difference between the compound interests on Rs. 5000 for 1
years at 4% per annum compounded yearly and half-yearly?
Answer: Rs.2.04
Explanation:
C.I. when interest compounded yearly |
= Rs. | 
| 5000 x | 
| 1 + | 4 | 
| x | 
| 1 + | x 4
| 
| 
| 100 | 100 |
|
|
= Rs. | 
| 5000 x | 26 | x | 51 | 
| 25 | 50 |
|
| = Rs. 5304. |
C.I. when interest is compounded half-yearly |
|
|
= Rs. | 
| 5000 x | 51 | x | 51 | x | 51 | 
| 50 | 50 | 50 |
|
| = Rs. 5306.04 |
Difference = Rs. (5306.04 - 5304) = Rs. 2.04
15. The compound interest on Rs. 30,000 at 7% per annum is Rs. 4347. The period (in years) is:
Answer: 2yrs
Explanation:
Amount = Rs. (30000 + 4347) = Rs. 34347.
Let the time be n years.
Then, 30000 | 
| 1 + | 7 | 
| n | = 34347 |
100 |
| 
| 107 | 
| n | = | 34347 | = | 11449 | = | 
| 107 | 
| 2 |
100 | 30000 | 10000 | 100 |
n = 2 years.
PROFIT AND LOSS
1.The percentage profit earned by selling an article for Rs. 1920 is equal to the percentage loss incurred by selling the same article for Rs. 1280. At what price should the article be sold to make 25% profit? |
Answer: Rs.2000 Explanation: Let C.P. be Rs. x. Then, | 1920 - x | x 100 = | x - 1280 | x 100 | x | x |
1920 - x = x - 1280 2x = 3200 x = 1600 Required S.P. = 125% of Rs. 1600 = Rs. |
| 125 | x 1600 |
| = Rs 2000. | 100 |
|
2. A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 392, what was his profit?
Answer: Rs.72
Explanation:
C.P. = Rs. |
| 100 | x 392 |
| = Rs. |
| 1000 | x 392 |
| = Rs. 320 |
122.5 | 1225 |
Profit = Rs. (392 - 320) = Rs. 72.
3. A man buys a cycle for Rs. 1400 and sells it at a loss of 15%. What is the selling price of the cycle?
Answer: Rs.1190
Explanation:
S.P. = 85% of Rs. 1400 = Rs. |
| 85 | x 1400 |
| = Rs. 1190 |
100 |
|
|
|
|
|
|
4. Sam purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one of them at the rate of Rs. 33. What was his percentage profit?
Answer: 5.6%
Explanation:
Cost Price of 1 toy = Rs. |
| 375 |
| = Rs. 31.25 |
12 |
Selling Price of 1 toy = Rs. 33
So, Gain = Rs. (33 - 31.25) = Rs. 1.75
Profit % = |
| 1.75 | x 100 | % | = | 28 | % = 5.6% |
31.25 | 5 |
5. Some articles were bought at 6 articles for Rs. 5 and sold at 5 articles for Rs. 6. Gain percent is:
Answer: 44%
Explanation:
Suppose, number of articles bought = L.C.M. of 6 and 5 = 30.
C.P. of 30 articles = Rs. |
| 5 | x 30 |
| = Rs. 25. |
6 |
S.P. of 30 articles = Rs. |
| 6 | x 30 |
| = Rs. 36. |
5 |
|
|
|
|
|
|
Gain % = |
| 11 | x 100 | % = 44%. |
25 |
6.On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is:
Answer: Rs.60
Explanation:
(C.P. of 17 balls) - (S.P. of 17 balls) = (C.P. of 5 balls)
C.P. of 12 balls = S.P. of 17 balls = Rs.720.
C.P. of 1 ball = Rs. |
| 720 |
| = Rs. 60. |
7. When a plot is sold for Rs. 18,700, the owner loses 15%. At what price must that plot be sold in order to gain 15%?
Answer: Rs.25,300
Explanation:
85 : 18700 = 115 : x
Hence, S.P. = Rs. 25,300.
8. 100 oranges are bought at the rate of Rs. 350 and sold at the rate of Rs. 48 per dozen. The percentage of profit or loss is:
Answer: 14(2/7)%
Explanation:
C.P. of 1 orange = Rs. |
| 350 |
| = Rs. 3.50 |
100 |
S.P. of 1 orange = Rs. |
| 48 |
| = Rs. 4 |
12 |
Gain% = |
| 0.50 | x 100 | % | = | 100 | % = 14 | 2 | % |
3.50 | 7 | 7 |
9. A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for Rs. 960 at a loss of 4%. His total gain or loss percent is:
Answer: 5
Explanation:
C.P. of 1st transistor = Rs. |
| 100 | x 840 |
| = Rs. 700. |
120 |
C.P. of 2nd transistor = Rs. |
| 100 | x 960 |
| = Rs. 1000 |
96 |
So, total C.P. = Rs. (700 + 1000) = Rs. 1700.
Total S.P. = Rs. (840 + 960) = Rs. 1800.
Gain % = |
| 100 | x 100 | % | = 5 | 15 | % |
1700 | 17 |
10. A trader mixes 26 kg of rice at Rs. 20 per kg with 30 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is:
Answer: 5%
Explanation:
C.P. of 56 kg rice = Rs. (26 x 20 + 30 x 36) = Rs. (520 + 1080) = Rs. 1600.
S.P. of 56 kg rice = Rs. (56 x 30) = Rs. 1680.
11. Alfred buys an old scooter for Rs. 4700 and spends Rs. 800 on its repairs. If he sells the scooter for Rs. 5800, his gain percent is:
Answer: 5(5/11)%
Explanation:
Cost Price (C.P.) = Rs. (4700 + 800) = Rs. 5500.
Selling Price (S.P.) = Rs. 5800.
Gain = (S.P.) - (C.P.) = Rs.(5800 - 5500) = Rs. 300.
Gain % = |
| 300 | x 100 | % | = 5 | 5 | % |
5500 | 11 |
12. The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is:
Answer: 16
Explanation:
Let C.P. of each article be Re. 1 C.P. of x articles = Rs. x.
S.P. of x articles = Rs. 20.
Profit = Rs. (20 - x).
2000 - 100x = 25x
125x = 2000
x = 16.
13. If selling price is doubled, the profit triples. Find the profit percent.
Answer: 100%
Explanation:
Let C.P. be Rs. x and S.P. be Rs. y.
Then, 3(y - x) = (2y - x) y = 2x.
Profit = Rs. (y - x) = Rs. (2x - x) = Rs. x.
Profit % = |
| x | x 100 | % = 100% |
x |
14. In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?
Answer: 70%(approx)
Explanation:
Let C.P.= Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420.
New C.P. = 125% of Rs. 100 = Rs. 125
New S.P. = Rs. 420.
Profit = Rs. (420 - 125) = Rs. 295.
Required percentage = |
| 295 | x 100 | % | = | 1475 | % = 70% (approximately). |
420 | 21 |
15. A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?
Answer: 5
Explanation:
C.P. of 6 toffees = Re. 1
S.P. of 6 toffees = 120% of Re. 1 = Rs. | 6 |
5 |
For Rs. | 6 | , toffees sold = 6. |
5 |
For Re. 1, toffees sold = |
| 6 x | 5 |
| = 5. |
6 |
PARTNERSHIP
1. A starts business with Rs. 3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B's contribution in the capital? |
Answer: 9000 Explanation: Let B's capital be Rs. x. 14x = 126000 x = 9000. |
2. A and B entered into partnership with capitals in the ratio 4 : 5. After 3 months, A withdrew ¼ of his capital and B withdrew 1/5 of his capital. The gain at the end of 10 months was Rs. 760. A's share in this profit is:
Answer: Rs.330
Explanation:
A : B = |
| 4x x 3 + |
| 4x - | 1 | x 4x |
| x 7 |
| : |
| 5x x 3 + |
| 5x - | 1 | x 5x |
| x 7 |
|
4 | 5 |
= (12x + 21x) : (15x + 28x)
= 33x :43x
= 33 : 43.
A's share = Rs. |
| 760 x | 33 |
| = Rs. 330. |
76 |
3. Two friends P and Q started a business investing in the ration of 5 : 6. R joined them after six months investing an amount equal to that of Q's. At the end of the year, 20% profit was earned which was equal to Rs. 98,000. What was the amount invested by R?
Answer: Rs.210000
Explanation:
Let the total profit be Rs. x.
Then, 20% of x = 98000 x = |
| 98000 x 100 |
| = 490000. |
20 |
Let the capitals of P, Q and R be Rs. 5x, Rs. 6x and Rs. 6x respectively.
Then, (5x x 12) + (6x x 12) + (6x x 6) = 490000 x 12
168x = 490000 x 12.
x = |
| 490000 x 12 |
| = 35000. |
168 |
R's investment = 6x = Rs. ( 6 x 35000) = Rs. 210000.
4. A and B started a partnership business investing some amount in the ratio of 3 : 5. C joined then after six months with an amount equal to that of B. In what proportion should the profit at the end of one year be distributed among A, B and C?
Answer: 6:10:5
Explanation:
Let the initial investments of A and B be 3x and 5x.
A : B : C = (3x x 12) : (5x x 12) : (5x x 6) = 36 : 60 : 30 = 6 : 10 : 5.
5. A, B, C rent a pasture. A puts 10 oxen for 7 months, B puts 12 oxen for 5 months and C puts 15 oxen for 3 months for grazing. If the rent of the pasture is Rs. 175, how much must C pay as his share of rent?
Answer: Rs.45
Explanation:
A : B : C = (10 x 7) : (12 x 5) : (15 x 3) = 70 : 60 : 45 = 14 : 12 : 9.
C's rent = Rs. |
| 175 x | 9 |
| = Rs. 45. |
35 |
6. A and B started a business in partnership investing Rs. 20,000 and Rs. 15,000 respectively. After six months, C joined them with Rs. 20,000. What will be B's share in total profit of Rs. 25,000 earned at the end of 2 years from the starting of the business?
Answer: Rs.7500
Explanation:
A : B : C = (20,000 x 24) : (15,000 x 24) : (20,000 x 18) = 4 : 3 : 3.
B's share = Rs. |
| 25000 x | 3 |
| = Rs. 7,500. |
10 |
7. A began a business with Rs. 85,000. He was joined afterwards by B with Rs. 42,500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 3 : 1?
Answer: 8 months
Explanation:
Suppose B joined for x months. Then,
Then, |
| 85000 x 12 | = | 3 |
|
42500 x x | 1 |
x = |
| 85000 x 12 |
| = 8. |
42500 x 3 |
So, B joined for 8 months.
8. Aman started a business investing Rs. 70,000. Rakhi joined him after six months with an amount of Rs.. 1,05,000 and Sagar joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio among Aman, Rakhi and Sagar respectively, 3 years after Aman started the business?
Answer: 12:15:16
Explanation:
Aman : Rakhi : Sagar = (70,000 x 36) : (1,05,000 x 30) : (1,40,000 x 24) = 12 : 15 : 16.
9. Arun, Kamal and Vinay invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of Kamal?
Answer: Rs.890
Explanation:
Arun : Kamal : Vinay = (8,000 x 6) : (4,000 x 8) : (8,000 x 8)
= 48 : 32 : 64
= 3 : 2 : 4.
Kamal's share = Rs. |
| 4005 x | 2 |
| = Rs. 890. |
9 |
10. Simran started a software business by investing Rs. 50,000. After six months, Nanda joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of Rs. 24,500. What was Simran's share in the profit?
Answer: Rs.10500
Explanation:
Simran : Nanda = (50000 x 36) : (80000 x 30) = 3 : 4.
Simran's share = Rs. |
| 24500 x | 3 |
| = Rs. 10,500. |
7 |
11.A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A's share is Rs. 855, the total profit is:
Answer: 1500
Explanation:
Let the total profit be Rs. 100.
After paying to charity, A's share = Rs. |
| 95 x | 3 |
| = Rs. 57. |
5 |
If A's share is Rs. 57, total profit = Rs. 100.
If A's share Rs. 855, total profit = |
| 100 | x 855 |
| = 1500. |
57 |
12. A, B and C jointly thought of engaging themselves in a business venture. It was agreed that A would invest Rs. 6500 for 6 months, B, Rs. 8400 for 5 months and C, Rs. 10,000 for 3 months. A wants to be the working member for which, he was to receive 5% of the profits. The profit earned was Rs. 7400. Calculate the share of B in the profit.
Answer: Rs.2660
Explanation:
For managing, A received = 5% of Rs. 7400 = Rs. 370.
Balance = Rs. (7400 - 370) = Rs. 7030.
Ratio of their investments = (6500 x 6) : (8400 x 5) : (10000 x 3)
= 39000 : 42000 : 30000
= 13 : 14 : 10
B's share = Rs. |
| 7030 x | 14 |
| = Rs. 2660. |
37 |
13. A, B and C enter into a partnership in the ratio 7/2:4/3:6/5. After 4 months, A increases his share 50%. If the total profit at the end of one year be Rs. 21,600, then B's share in the profit is:
Answer: Rs.4000
Explanation:
Ratio of initial investments = |
| 7 | : | 4 | : | 6 |
| = 105 : 40 : 36. |
2 | 3 | 5 |
Let the initial investments be 105x, 40x and 36x.
A : B : C = |
| 105x x 4 + | 150 | x 105x x 8 |
| : (40x x 12) : (36x x 12) |
100 |
= 1680x : 480x : 432x = 35 : 10 : 9.
Hence, B's share = Rs. |
| 21600 x | 10 |
| = Rs. 4000. |
54 |
14. A, B, C subscribe Rs. 50,000 for a business. A subscribes Rs. 4000 more than B and B Rs. 5000 more than C. Out of a total profit of Rs. 35,000, A receives:
Answer: Rs.14,700
Explanation:
Let C = x.
Then, B = x + 5000 and A = x + 5000 + 4000 = x + 9000.
So, x + x + 5000 + x + 9000 = 50000
3x = 36000
x = 12000
A : B : C = 21000 : 17000 : 12000 = 21 : 17 : 12.
A's share = Rs. |
| 35000 x | 21 |
| = Rs. 14,700. |
50 |
15. Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnered for 14 months, 8 months and 7 months respectively. What was the ratio of their investments?
Answer: 20:49:64
Explanation:
Let their investments be Rs. x for 14 months, Rs. y for 8 months and Rs. z for 7 months respectively.
Then, 14x : 8y : 7z = 5 : 7 : 8.
Now, | 14x | = | 5 | 98x = 40y y = | 49 | x |
8y | 7 | 20 |
And, | 14x | = | 5 | 112x = 35z z = | 112 | x = | 16 | x. |
7z | 8 | 35 | 5 |
x : y : z = x : | 49 | x | : | 16 | x | = 20 : 49 : 64. |
20 | 5 |
|
|
|
|
|
|
|
PERCENTAGE
| 1.If 20% of a = b, then b% of 20 is the same as: |
Answer: 4%of a Explanation: 20% of a = b → | 20 | a = b. | 100 |
b% of 20 = |
| b | x 20 |
| = |
| 20 | a x | 1 | x 20 |
| = | 4 | a = 4% of a. | 100 | 100 | 100 | 100 |
|
2. In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is 2/3 of the number of students of 8 years of age which is 48. What is the total number of students in the school?
Answer: 100
Explanation:
Let the number of students be x. Then,
Number of students above 8 years of age = (100 - 20)% of x = 80% of x.
x = 100.
3. Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find the ratio of A : B.
Answer: 4:3
Explanation:
5% of A + 4% of B = | 2 | (6% of A + 8% of B) |
3 |

| 5 | A + | 4 | B | = | 2 | 
| 6 | A + | 8 | B | 
|
100 | 100 | 3 | 100 | 100 |

| 1 | A + | 1 | B | = | 1 | A + | 4 | B |
20 | 25 | 25 | 75 |

| 1 | A = | 1 | B |
100 | 75 |
Required ratio = 4 : 3
4. A student multiplied a number by | 3 | instead of | 5 | . |
5 | 3 |
What is the percentage error in the calculation?
Answer: 64%
Explanation:
Let the number be x.
Then, error = | 5 | x - | 3 | x = | 16 | x. |
3 | 5 | 15 |
Error% = | ( | 16x | x | 3 | x 100 | )% = 64%. |
15 | 5x |
5. In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was:
Answer: 2700
Explanation:
Number of valid votes = 80% of 7500 = 6000.
Valid votes polled by other candidate = 45% of 6000
6. Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate get?
Answer: 57%
Explanation:
Total number of votes polled = (1136 + 7636 + 11628) = 20400.
Required percentage = |
| 11628 | x 100 | % = 57%. |
20400 |
7. Two tailers X and Y are paid a total of Rs. 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?
Answer: 250
Explanation:
Let the sum paid to Y per week be Rs. z.
Then, z + 120% of z = 550.
8. Gauri went to the stationers and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?
Answer: Rs.19.70
Explanation:
Let the amount taxable purchases be Rs. x.
Cost of tax free items = Rs. [25 - (5 + 0.30)] = Rs. 19.70
9. Rajeev buys good worth Rs. 6650. He gets a rebate of 6% on it. After getting the rebate, he pays sales tax @ 10%. Find the amount he will have to pay for the goods.
Answer: Rs.6876.10
Explanation:
Rebate = 6% of Rs. 6650 = Rs. | 6 | x 6650 | = Rs. 399. |
100 |
Sales tax = 10% of Rs. (6650 - 399) = Rs. | 10 | x 6251 | = Rs. 625.10 |
100 |
Final amount = Rs. (6251 + 625.10) = Rs. 6876.10
10. The population of a town increased from 1,75,000 to 2,62,500 in a decade. The average percent increase of population per year is:
Answer: 5%
Explanation:
Increase in 10 years = (262500 - 175000) = 87500.
Increase% = | 87500 | x 100 | % = 50%. |
175000 |
Required average = | 50 | % = 5%. |
10 |
|
|
|
11. A batsman scored 110 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets?
Answer: 45(5/11)%
Explanation:
Number of runs made by running = 110 - (3 x 4 + 8 x 6)
= 110 - (60)
= 50.
Required percentage = | 50 | x 100 | % = 45 | 5 | % |
110 | 11 |
12. Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are:
Answer: 42&33
Explanation:
Let their marks be (x + 9) and x.
Then, x + 9 = | 56 | (x + 9 + x) |
100 |
25(x + 9) = 14(2x + 9)
3x = 99
x = 33
So, their marks are 42 and 33.
13. A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had:
Answer: 700
Explanation:
Suppose originally he had x apples.
Then, (100 - 40)% of x = 420.
14. What percentage of numbers from 1 to 70 have 1 or 9 in the unit's digit?
Answer: 20%
Explanation:
Clearly, the numbers which have 1 or 9 in the unit's digit, have squares that end in the digit 1. Such numbers from 1 to 70 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69.
Number of such number =14
Required percentage = |
| 14 | x 100 | % = 20%. |
70 |
15. If A = x% of y and B = y% of x, then which of the following is true?
Answer: A=B
Explanation:
x% of y = |
| x | x y |
| = |
| y | x x |
| = y% of x |
100 | 100 |
A = B.
TRUE DISCOUNT
1. Goods were bought for Rs. 600 and sold the same for Rs. 688.50 at a credit of 9 months and thus gaining 2% The rate of interest per annum is:
Answer: 16%
Explanation:
S.P. = 102% of Rs. 600 = |
| 102 | x 600 |
| = Rs. 612. |
100 |
Now, P.W. = Rs. 612 and sum = Rs. 688.50.
T.D. = Rs. (688.50 - 612) = Rs. 76.50.
Thus, S.I. on Rs. 612 for 9 months is Rs. 76.50.
Rate = | ( | 100 x 76.50 | )% | = 16% |
|
2. The true discount on a bill due 9 months hence at 16% per annum is Rs. 189. The amount of the bill is:
Answer: Rs.1764
Explanation:
Let P.W. be Rs. x.
Then, S.I. on Rs. x at 16% for 9 months = Rs. 189.
→x x 16 x | 9 | x | 1 | = 189 or x = 1575. |
12 | 100 |
P.W. = Rs. 1575.
Sum due = P.W. + T.D. = Rs. (1575 + 189) = Rs. 1764.
3. A man buys a watch for Rs. 1950 in cash and sells it for Rs. 2200 at a credit of 1 year. If the rate of interest is 10% per annum, the man:
Answer: Rs.50
Explanation:
S.P. | = P.W. of Rs. 2200 due 1 year hence |
|
= Rs. |
| 2200 x 100 |
| 100 + (10 x 1) |
|
| = Rs. 2000. |
Gain = Rs. (2000 - 1950) = Rs. 50.
4. The true discount on Rs. 1760 due after a certain time at 12% per annum is Rs. 160. The time after which it is due is:
Answer: 10months
Explanation:
P.W. = Rs. (1760 -160) = Rs. 1600.
S.I. on Rs. 1600 at 12% is Rs. 160.
Time = |
| 100 x 160 |
| = | 5 | years = |
| 5 | x 12 | months = 10 months. |
1600 x 12 | 6 | 6 |
5. The present worth of Rs. 2310 due 2 1/2 years hence, the rate of interest being 15% per annum, is:
Answer: Rs.1680
Explanation:
P.W. = Rs. | [ | 100 x 2310 | ] | = Rs. 1680. |
|
6.Rs. 20 is the true discount on Rs. 260 due after a certain time. What will be the true discount on the same sum due after half of the former time, the rate of interest being the same?
Answer: Rs.10.40
Explanation:
S.I. on Rs. (260 - 20) for a given time = Rs. 20.
S.I. on Rs. 240 for half the time = Rs. 10.
T.D. on Rs. 250 = Rs. 10.
T.D. on Rs. 260 = Rs. |
| 10 | x 260 |
| = Rs. 10.40 |
250 |
7. The interest on Rs. 750 for 2 years is the same as the true discount on Rs. 960 due 2 years hence. If the rate of interest is the same in both cases, it is:
Answer: 14%
Explanation:
S.I. on Rs. 750 = T.D. on Rs. 960.
This means P.W. of Rs. 960 due 2 years hence is Rs. 750.
T.D. = Rs. (960 - 750) = Rs. 210.
Thus, S.I. on R.s 750 for 2 years is Rs. 210.
Rate = |
| 100 x 210 | % | = 14% |
750 x 2 |
8. The simple interest and the true discount on a certain sum for a given time and at a given rate are Rs. 85 and Rs. 80 respectively. The sum is:
Answer: Rs.1360
Explanation:
Sum = | S.I. x T.D. | = | 85 x 80 | = Rs. 1360. |
(S.I.) - (T.D.) | (85 - 80) |
9. The present worth of Rs. 1404 due in two equal half-yearly installments at 8% per annum simple interest is:
Answer: Rs.1325
Explanation:
Required sum | = P.W. of Rs. 702 due 6 months + P.W. of Rs. 702 due 1 year hence |
|
|
| = Rs. (675 + 650) |
| = Rs. 1325. |
10. If the true discount on s sum due 2 years hence at 14% per annum be Rs. 168, the sum due is:
Answer: Rs.768
Explanation:
P.W. = | 100 x T.D. | = | 100 x 168 | = 600. |
R x T | 14 x 2 |
Sum = (P.W. + T.D.) = Rs. (600 + 168) = Rs. 768.
11. A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If the rate of interest be 10% per annum, then the man has a gain of:
Answer: 0%
Explanation:
C.P. = Rs. 3000.
S.P. = Rs. |
| 3600 x 100 |
| = Rs. 3000. |
100 + (10 x 2) |
Gain = 0%.
12. The true discount on Rs. 2562 due 4 months hence is Rs. 122. The rate percent is:
Answer: 15%
Explanation:
P.W. = Rs. (2562 - 122) = Rs. 2440.
S.I. on Rs. 2440 for 4 months is Rs. 122.
13. A trader owes a merchant Rs. 10,028 due 1 year hence. The trader wants to settle the account after 3 months. If the rate of interest 12% per annum, how much cash should he pay?
Answer: Rs.9200
Explanation:
Required money | = P.W. of Rs. 10028 due 9 months hence |
|
|
| = Rs. 9200. |
14. A man wants to sell his scooter. There are two offers, one at Rs. 12,000 cash and the other a credit of Rs. 12,880 to be paid after 8 months, money being at 18% per annum. Which is the better offer?
Answer: Rs.11500
Explanation:
P.W. of Rs. 12,880 due 8 months hence |
|
|
|
| = Rs. 11500. |
15. If Rs. 10 be allowed as true discount on a bill of Rs. 110 due at the end of a certain time, then the discount allowed on the same sum due at the end of double the time is:
Answer: Rs.18.33
Explanation:
S.I. on Rs. (110 - 10) for a certain time = Rs. 10.
S.I. on Rs. 100 for double the time = Rs. 20.
T.D. on Rs. 120 = Rs. (120 - 100) = Rs. 20.
T.D. on Rs. 110 = Rs. |
| 20 | x 110 |
| = Rs. 18.33 |
120 |
RATIO AND PROPORTION
1.The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio? |
Answer: 21:22 Explanation: Originally, let the number of boys and girls in the college be 7x and 8x respectively. Their increased number is (120% of 7x) and (110% of 8x).
The required ratio = |
| 42x | : | 44x |
| = 21 : 22. | 5 | 5 |
|
2. Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?
Answer: Rs.38000
Explanation:
Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively.
Then, | 2x + 4000 | = | 40 |
3x + 4000 | 57 |
57(2x + 4000) = 40(3x + 4000)
6x = 68,000
3x = 34,000
Sumit's present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000.
3. If 0.75 : x :: 5 : 8, then x is equal to:
Answer: 1.20
Explanation:
(x x 5) = (0.75 x 8) → x = |
| 6 |
| = 1.20 |
5 |
4. The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:
Answer: 30
Explanation:
Let the three parts be A, B, C. Then,
A : B = 2 : 3 and B : C = 5 : 8 = |
| 5 x | 3 |
| : |
| 8 x | 3 |
| = 3 : | 24 |
5 | 5 | 5 |
A : B : C = 2 : 3 : | 24 | = 10 : 15 : 24 |
5 |
5. If Rs. 782 be divided into three parts, proportional to (1/2): (2/3): (3/4), then the first part is:
Answer: Rs.204
Explanation:
Given ratio = (1/2): (2/3): (3/4) = 6 : 8 : 9.
1st part = Rs. |
| 782 x | 6 |
| = Rs. 204 |
23 |
6.The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?
Answer: 23:33:60
Explanation:
Let A = 2k, B = 3k and C = 5k.
A's new salary = | 115 | of 2k = |
| 115 | x 2k |
| = | 23k |
100 | 100 | 10 |
B's new salary = | 110 | of 3k = |
| 110 | x 3k |
| = | 33k |
100 | 100 | 10 |
C's new salary = | 120 | of 5k = |
| 120 | x 5k |
| = 6k |
100 | 100 |
New ratio |
| 23k | : | 33k | : 6k |
| = 23 : 33 : 60 |
10 | 10 |
7. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
Answer: 5:3
Explanation:
A : B = 5 : 3.
8. The fourth proportional to 5, 8, 15 is:
Answer: 24
Explanation:
Let the fourth proportional to 5, 8, 15 be x.
Then, 5 : 8 : 15 : x
5x = (8 x 15)
9. Two number are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is:
Answer: 33
Explanation:
Let the numbers be 3x and 5x.
23(3x - 9) = 12(5x - 9)
9x = 99
x = 11.
The smaller number = (3 x 11) = 33.
10. In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
Answer: 150
Explanation:
Let the number of 25 p, 10 p and 5 p coins be x, 2x, 3x respectively.
Then, sum of their values = Rs. |
| 25x | + | 10 x 2x | + | 5 x 3x |
| = Rs. | 60x |
100 | 100 | 100 | 100 |
| 60x | = 30 | x = | 30 x 100 | = 50. |
100 | 60 |
Hence, the number of 5 p coins = (3 x 50) = 150.
11. A and B together have Rs. 1210. If 4/15 of A's amount is equal to 2/5 of B's amount, how much amount does B have?
Answer: Rs.484
Explanation:
A : B = 3 : 2.
B's share = Rs. |
| 1210 x | 2 |
| = Rs. 484. |
5 |
12. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
Answer: 4:5
Explanation:
Let the third number be x.
Then, first number = 120% of x = | 120x | = | 6x |
100 | 5 |
Second number = 150% of x = | 150x | = | 3x |
100 | 2 |
Ratio of first two numbers = |
| 6x | : | 3x |
| = 12x : 15x = 4 : 5. |
5 | 2 |
13. A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B's share?
Answer: Rs.2000
Explanation:
Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively.
Then, 4x - 3x = 1000
x = 1000.
B's share = Rs. 2x = Rs. (2 x 1000) = Rs. 2000.
14. Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?
Answer: 2:3:4
Explanation:
Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.
Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).
| 140 | x 5x |
| , |
| 150 | x 7x |
| and |
| 175 | x 8x |
|
100 | 100 | 100 |
The required ratio = 7x : | 21x | : 14x |
2 |
14x : 21x : 28x
2 : 3 : 4.
15.In a mixture 60 litres, the ratio of milk and water 2 : 1. If the this ratio is to be 1 : 2, then the quanity of water to be further added is:
Answer: 60litres
Explanation:
Quantity of milk = |
| 60 x | 2 | litres = 40 litres. |
3 |
Quantity of water in it = (60- 40) litres = 20 litres.
New ratio = 1 : 2
Let quantity of water to be added further be x litres.
Then, milk : water = |
| 40 |
20 + x |
20 + x = 80
x = 60.
Quantity of water to be added = 60 litres.
SIMPLIFICATION
| 1. A sum of Rs. 1360 has been divided among A, B and C such that A gets 2/3 of what B gets and B gets ¼ of what C gets. B's share is: |
Answer: Rs.240 Explanation: Let C's share = Rs. x Then, B's share = Rs. | x | , A's share = Rs. | 2 | x | x | = Rs. | x | 4 | 3 | 4 | 6 |
Hence, B's share = Rs. |
| 960 |
| = Rs. 240. | 4 |
|
2. One-third of Rahul's savings in National Savings Certificate is equal to one-half of his savings in Public Provident Fund. If he has Rs. 1,50,000 as total savings, how much has he saved in Public Provident Fund ?
Answer: Rs.60000
Explanation:
Let savings in N.S.C and P.P.F. be Rs. x and Rs. (150000 - x) respectively. Then,
Savings in Public Provident Fund = Rs. (150000 - 90000) = Rs. 60000
3. A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed:
Answer: 30
Explanation:
Let the total number of shots be x. Then,
Killing shots by A = | 1 | of | 5 | x | = | 5 | x |
3 | 8 | 24 |
Shots missed by B = | 1 | of | 3 | x | = | 3 | x |
2 | 8 | 16 |
| 3x | = 27 or x = |
| 27 x 16 |
| = 144. |
16 | 3 |
Birds killed by A = | 5x | = |
| 5 | x 144 |
| = 30. |
24 | 24 |
4. Eight people are planning to share equally the cost of a rental car. If one person withdraws from the arrangement and the others share equally the entire cost of the car, then the share of each of the remaining persons increased by:
Answer: (1/7)
Explanation:
Original share of 1 person = | 1 |
8 |
New share of 1 person = | 1 |
7 |
Required fraction = | (1/56) | = |
| 1 | x | 8 |
| = | 1 |
(1/8) | 56 | 1 | 7 |
5. To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present ?
Answer: 62.5
Explanation:
Let the capacity of 1 bucket = x.
Then, the capacity of tank = 25x.
New capacity of bucket = | 2 | x |
5 |
Required number of buckets = | 25x |
(2x/5) |
= 62.5
6. In a regular week, there are 5 working days and for each day, the working hours are 8. A man gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hours for overtime. If he earns Rs. 432 in 4 weeks, then how many hours does he work for ?
Answer: 175
Explanation:
Suppose the man works overtime for x hours.
Now, working hours in 4 weeks = (5 x 8 x 4) = 160.
160 x 2.40 + x x 3.20 = 432
3.20x = 432 - 384 = 48
x = 15.
Hence, total hours of work = (160 + 15) = 175.
7. Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. Total how many notebooks were distributed ?
Answer: 512
Explanation:
Let total number of children be x.
Then, x x | 1 | x = | x | x 16 x = 64. |
8 | 2 |
Number of notebooks = | 1 | x2 = | 1 | x 64 x 64 | = 512. |
8 | 8 |
8. A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:
Answer: 26
Explanation:
Let the number of hens be x and the number of cows be y.
Then, x + y = 48 .... (i)
and 2x + 4y = 140 x + 2y = 70 .... (ii)
Solving (i) and (ii) we get: x = 26, y = 22.
The required answer = 26.
9. (469 + 174)2 - (469 - 174)2 | = ? |
(469 x 174) |
Answer: 4
Explanation:
Given exp. = | (a + b)2 - (a - b)2 |
ab |
= 4 (where a = 469, b = 174.)
10. David gets on the elevator at the 11th floor of a building and rides up at the rate of 57 floors per minute. At the same time, Albert gets on an elevator at the 51st floor of the same building and rides down at the rate of 63 floors per minute. If they continue travelling at these rates, then at which floor will their paths cross ?
Answer: 30th floor
Explanation:
Suppose their paths cross after x minutes.
Then, 11 + 57x = 51 - 63x 120x = 40
Number of floors covered by David in (1/3) min. = |
| 1 | x 57 |
| = 19. |
3 |
So, their paths cross at (11 +19) i.e., 30th floor.
11.A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?
Answer: 90
Explanation:
Let number of notes of each denomination be x.
Then x + 5x + 10x = 480
16x = 480
x = 30.
Hence, total number of notes = 3x = 90.
12. There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:
Answer: 100
Explanation:
Let the number of students in rooms A and B be x and y respectively.
Then, x - 10 = y + 10 → x - y = 20 .... (i)
and x + 20 = 2(y - 20) → x - 2y = -60 .... (ii)
Solving (i) and (ii) we get: x = 100 , y = 80.
The required answer A = 100.
13. The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is:
Answer: Rs.3900
Explanation:
Let the cost of a chair and that of a table be Rs. x and Rs. y respectively.
Then, 10x = 4y or y = | 5 | x. |
2 |
15x + 2y = 4000
20x = 4000
x = 200.
Hence, the cost of 12 chairs and 3 tables = 12x + 3y
= Rs. (2400 + 1500)
= Rs. 3900.
14. If a - b = 3 and a2 + b2 = 29, find the value of ab.
Answer: 10
Explanation:
2ab = (a2 + b2) - (a - b)2
= 29 - 9 = 20
ab = 10.
15. The price of 2 sarees and 4 shirts is Rs. 1600. With the same money one can buy 1 saree and 6 shirts. If one wants to buy 12 shirts, how much shall he have to pay ?
Answer: Rs.2400
Explanation:
Let the price of a saree and a shirt be Rs. x and Rs. y respectively.
Then, 2x + 4y = 1600 .... (i)
and x + 6y = 1600 .... (ii)
Divide equation (i) by 2, we get the below equation.
=> x + 2y = 800. --- (iii)
Now subtract (iii) from (ii)
x + 6y = 1600 (-)
x + 2y = 800
----------------
4y = 800
----------------
Therefore, y = 200.
Now apply value of y in (iii)
=> x + 2 x 200 = 800
=> x + 400 = 800
Therefore x = 400
Solving (i) and (ii) we get x = 400, y = 200.
Cost of 12 shirts = Rs. (12 x 200) = Rs. 2400.
PROBLEMS ON H.C.F AND L.C.M
1.The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is:
Answer: 111
Explanation:
Let the numbers be 37a and 37b.
Then, 37a x 37b = 4107
ab = 3.
Now, co-primes with product 3 are (1, 3).
So, the required numbers are (37 x 1, 37 x 3) i.e., (37, 111).
Greater number = 111.
2. Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:
Answer: 40
Explanation:
Let the numbers be 3x, 4x and 5x.
Then, their L.C.M. = 60x.
So, 60x = 2400 or x = 40.
The numbers are (3 x 40), (4 x 40) and (5 x 40).
Hence, required H.C.F. = 40.
3. The G.C.D. of 1.08, 0.36 and 0.9 is:
Answer: 0.18
Explanation:
Given numbers are 1.08, 0.36 and 0.90. H.C.F. of 108, 36 and 90 is 18,
H.C.F. of given numbers = 0.18.
4. The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:
Answer: 2
Explanation:
Let the numbers 13a and 13b.
Then, 13a x 13b = 2028
ab = 12.
Now, the co-primes with product 12 are (1, 12) and (3, 4).
[Note: Two integers a and b are said to be coprime or relatively prime if they have no common positive factor other than 1 or, equivalently, if their greatest common divisor is 1 ]
So, the required numbers are (13 x 1, 13 x 12) and (13 x 3, 13 x 4).
Clearly, there are 2 such pairs.
5. The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is:
Answer: 364
Explanation:
L.C.M. of 6, 9, 15 and 18 is 90.
Let required number be 90k + 4, which is multiple of 7.
Least value of k for which (90k + 4) is divisible by 7 is k = 4.
Required number = (90 x 4) + 4 = 364.
6.Find the lowest common multiple of 24, 36 and 40.
Answer: 360
Explanation:
2 | 24 - 36 - 40
--------------------
2 | 12 - 18 - 20
--------------------
2 | 6 - 9 - 10
-------------------
3 | 3 - 9 - 5
-------------------
| 1 - 3 - 5
L.C.M. = 2 x 2 x 2 x 3 x 3 x 5 = 360.
7. The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:
Answer: 23
Explanation:
L.C.M. of 5, 6, 4 and 3 = 60.
On dividing 2497 by 60, the remainder is 37.
Number to be added = (60 - 37) = 23.
8. Reduce | 128352 | to its lowest terms. |
238368 |
|
Answer: 7/13
Explanation:
128352) 238368 ( 1
128352
---------------
110016 ) 128352 ( 1
110016
------------------
18336 ) 110016 ( 6
110016
-------
x
-------
So, H.C.F. of 128352 and 238368 = 18336.
128352 128352 ÷ 18336 7
Therefore, ------ = -------------- = --
238368 238368 ÷ 18336 13
9. The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is:
Answer: 1683
Explanation:
L.C.M. of 5, 6, 7, 8 = 840.
Required number is of the form 840k + 3
Least value of k for which (840k + 3) is divisible by 9 is k = 2.
Required number = (840 x 2 + 3) = 1683.
10. A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point ?
Answer: 46min12sec
Explanation:
L.C.M. of 252, 308 and 198 = 2772.
So, A, B and C will again meet at the starting point in 2772 sec. i.e., 46 min. 12 sec.
11.The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is:
Answer: 308
Explanation:
Other number = |
| 11 x 7700 |
| = 308. |
275 |
12. What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?
Answer: 630
Explanation:
L.C.M. of 12, 18, 21 30 2 | 12 - 18 - 21 - 30
----------------------------
= 2 x 3 x 2 x 3 x 7 x 5 = 1260. 3 | 6 - 9 - 21 - 15
----------------------------
Required number = (1260 ÷ 2) | 2 - 3 - 7 - 5
= 630.
13. The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:
Answer: 48
Explanation:
Let the numbers be 3x and 4x. Then, their H.C.F. = x. So, x = 4.
So, the numbers 12 and 16.
L.C.M. of 12 and 16 = 48.
14.
The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is:
Answer: 1015
Explanation:
Required number = (L.C.M. of 12,16, 18, 21, 28) + 7
= 1008 + 7
= 1015
15. 252 can be expressed as a product of primes as:
Answer: 2 x 2 x 3 x 3 x 7.
Explanation:
Clearly, 252 = 2 x 2 x 3 x 3 x 7.
16.The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:
Answer: 35cm
Explanation:
Required length = H.C.F. of 700 cm, 385 cm and 1295 cm = 35 cm.
17. Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:
Answer: 85
Explanation:
Since the numbers are co-prime, they contain only 1 as the common factor.
Also, the given two products have the middle number in common.
So, middle number = H.C.F. of 551 and 1073 = 29;
First number = |
| 551 |
| = 19; Third number = |
| 1073 |
| = 37. |
29 | 29 |
Required sum = (19 + 29 + 37) = 85.
18. Find the highest common factor of 36 and 84.
Answer: 12
Explanation:
36 = 22 x 32
84 = 22 x 3 x 7
H.C.F. = 22 x 3 = 12.
19. Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.
Answer: 4
Explanation:
Required number = H.C.F. of (91 - 43), (183 - 91) and (183 - 43)
= H.C.F. of 48, 92 and 140 = 4.
20. The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is:
Answer: 322
Explanation:
Clearly, the numbers are (23 x 13) and (23 x 14).
Larger number = (23 x 14) = 322.
21. Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?
Answer: 16times
Explanation:
L.C.M. of 2, 4, 6, 8, 10, 12 is 120.
So, the bells will toll together after every 120 seconds(2 minutes).
In 30 minutes, they will toll together | 30 | + 1 = 16 times. |
2 |
22.Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:
Answer: 4
Explanation:
N = H.C.F. of (4665 - 1305), (6905 - 4665) and (6905 - 1305)
= H.C.F. of 3360, 2240 and 5600 = 1120.
Sum of digits in N = ( 1 + 1 + 2 + 0 ) = 4
23.The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
Answer: 9600
Explanation:
Greatest number of 4-digits is 9999.
L.C.M. of 15, 25, 40 and 75 is 600.
On dividing 9999 by 600, the remainder is 399.
Required number (9999 - 399) = 9600.
24.Which of the following fraction is the largest ?
7/8,13/16,31/40
Answer: 7/8
Explanation:
L.C.M. of 8, 16, 40 and 80 = 80.
7 | = | 70 | ; | 13 | = | 65 | ; | 31 | = | 62 |
8 | 80 | 16 | 80 | 40 | 80 |
Since, | 70 | > | 65 | > | 63 | > | 62 | , so | 7 | > | 13 | > | 63 | > | 31 |
80 | 80 | 80 | 80 | 8 | 16 | 80 | 40 |
25. The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:
Answer: 548
Explanation:
Required number = (L.C.M. of 12, 15, 20, 54) + 8
= 540 + 8
= 548.
SQUARE ROOT AND CUBE ROOT
1.If a = 0.1039, then the value of sqrt( 4a2 - 4a + 1 + 3a) is:
Answer: 1.1039
Explanation:
Sqrt(4a2 - 4a + 1 )+ 3a = sqrt((1)2 + (2a)2 - 2 x 1 x 2a )+ 3a
= sqrt((1 - 2a)2 )+ 3a
= (1 - 2a) + 3a
= (1 + a)
= (1 + 0.1039)
= 1.1039
If x =
| Sqrt(3) + 1 | and y = | Sqrt(3 )- 1 | , then the value of (x2 + y2) is: |
Sqrt(3) - 1 | Sqrt(3) + 1 |
Answer: 14
Explanation:
x = | (sqrt3 + 1) | x | (sqrt3 + 1) | = | (sqrt3 + 1)2 | = | 3 + 1 – 2sqrt3 | = 2 + sqrt3. |
(sqrt3 - 1) | (sqrt3 + 1) | (3 - 1) | 2 |
y = | (sqrt3 - 1) | x | (sqrt3 - 1) | = | (sqrt3 - 1)2 | = | 3 + 1 – 2sqrt3 | = 2 - sqrt3. |
(sqrt3 + 1) | (sqrt3 - 1) | (3 - 1) | 2 |
x2 + y2 = (2 + sqrt3)2 + (2 - sqrt3)2
= 2(4 + 3)
= 14
A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:
Answer: 77
Explanation:
Money collected = (59.29 x 100) paise = 5929 paise.
Number of members = sqrt5929 = 77.
4. A group of students decided to collect as many paise from each member of group as is the
number of members. If the total collection amounts to Rs. 59.29, the number of the member is
the group is:
Answer: 77
Explanation:
Money collected = (59.29 x 100) paise = 5929 paise.
Number of members = sqrt5929 = 77.
5. If √5 = 2.236, then the value of | 5 | - | 10 | + 125 is equal to: |
2 | 5 |
Answer: 7.826
Explanation:
sqrt5 | - | 10 | + sqrt125 | = | (sqrt5)2 - 20 + 2sqrt5 x 5sqrt5 |
2 | sqrt5 | 2sqrt5 |
| 6.[sqrt625 | x | 14 | x | 11 | ] | is equal to: |
11 | sqrt25 | sqrt196 |
Answer: 5
Explanation:
Given Expression = | 25 | x | 14 | x | 11 | = 5. |
11 | 5 | 14 |
7. Sqrt(0.0169 x ?) = 1.3
Answer: 100
Explanation:
Let sqrt(0.0169 x x) = 1.3.
Then, 0.0169x = (1.3)2 = 1.69
8. The square root of 64009 is:
Answer: 253
Explanation:
2|64009( 253
|4
|----------
45|240
|225
|----------
503| 1509
| 1509
|----------
| X
|----------
sqrt(64009) = 253.
9. How many two-digit numbers satisfy this property.: The last digit (unit's digit) of the square of the two-digit number is 8 ?
Answer: A number ending in 8 can never be a perfect square.
Explanation:
A number ending in 8 can never be a perfect square.
10. | {sqrt3 - | 1 | }^ | 2 | simplifies to: |
sqrt3 |
Answer: 4/3
Explanation:
| [Sqrt(3) - | 1 | ]^ | 2 | = (sqrt3)2 + | [ | 1 | ^ | 2 | ]- 2 x sqrt(3) x | 1 |
Sqrt(3) | Sqrt(3) | Sqrt(3) |
|
|
|
11.The cube root of .000216 is: |
Answer: 0.06 Explanation: (.000216)1/3 | = | [ | 216 | ] | 1/3 | 106 |
|
= | [ | 6 x 6 x 6 | ] | 1/3 | 102 x 102 x 102 |
|
= 0.06
|
|
|
|
12. The least perfect square, which is divisible by each of 21, 36 and 66 is:
Answer: 213444
Explanation:
L.C.M. of 21, 36, 66 = 2772.
Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11
To make it a perfect square, it must be multiplied by 7 x 11.
So, required number = 22 x 32 x 72 x 112 = 213444
13. Sqrt(1.5625) = ?
Answer: 1.25
Explanation:
1|1.5625( 1.25
|1
|-------
22| 56
| 44
|-------
245| 1225
| 1225
|-------
| X
|-------
1.5625 = 1.25.
14.The square root of (7+sqrt5) (7 – 3sqrt5) is
Answer: 2
Explanation:
sqrt{(7 + 3sqrt5)(7 – 3sqrt5)} | = | sqrt{(7)2 - (35)2 | } = sqrt{49 - 45 }= sqrt4 = 2. |
15.What should come in place of both x in the equation | x | = | 162 | . |
128 | x |
Answer: 12
Explanation:
Then x2 = sqrt(128 x 162)
= sqrt(64 x 2 x 18 x 9)
= sqrt(82 x 62 x 32)
= 8 x 6 x 3
= 144.
x = sqrt(144) = 12.
LOGARITHM
1. If log10 7 = a, then log10 |
| 1 |
| is equal to: |
70 |
Answer: -(a+1)
Explanation:
| = log10 1 - log10 70 |
| = - log10 (7 x 10) |
| = - (log10 7 + log10 10) |
| = - (a + 1).
|
2. If log10 2 = 0.3010, then log2 10 is equal to:
Answer: 1000/301
Explanation:
log2 10 = | 1 | = | 1 | = | 10000 | = | 1000 | . |
log10 2 | 0.3010 | 3010 | 301 |
|
|
|
|
|
|
|
|
|
3. If log10 2 = 0.3010, the value of log10 80 is:
Answer: 1.9030
Explanation:
log10 | = log10 (8 x 10) |
| = log10 8 + log10 10 |
| = log10 (23 ) + 1 |
| = 3 log10 2 + 1 |
| = (3 x 0.3010) + 1 |
| = 1.9030. |
If log10 5 + log10 (5x + 1) = log10 (x + 5) + 1, then x is equal to:
Answer: Option B
Explanation:
log10 5 + log10 (5x + 1) = log10 (x + 5) + 1
log10 5 + log10 (5x + 1) = log10 (x + 5) + log10 10
log10 [5 (5x + 1)] = log10 [10(x + 5)]
5(5x + 1) = 10(x + 5)
5x + 1 = 2x + 10
3x = 9
x = 3.
5. The value of |
| 1 | + | 1 | + | 1 |
| is: |
log3 60 | log4 60 | log5 60 |
Answer: 1
Explanation:
Given expression | = log60 3 + log60 4 + log60 5 |
| = log60 (3 x 4 x 5) |
| = log60 60 |
| = 1.
|
6. If log 2 = 0.30103, the number of digits in 264 is: Answer: 20 Explanation: log (264) | = 64 x log 2 |
| = (64 x 0.30103) |
| = 19.26592 |
Its characteristic is 19. Hence, then number of digits in 264 is 20.
|
7. If logx |
| 9 |
| = - | 1 | , then x is equal to: |
16 | 2 |
Answer: 256/81
Explanation:
8. If ax = by, then: Answer: Explanation: ax = by log ax = log by x log a = y log b
|
9. If logx y = 100 and log2 x = 10, then the value of y is:
Answer: 21000
Explanation:
log 2 x = 10
x = 210.
logx y = 100
y = x100
y = (210)100 [put value of x]
y = 21000.
10. The value of log2 16 is:
Answer: 4
Explanation:
Let log2 16 = n.
Then, 2n = 16 = 24 → n = 4.
log2 16 = 4.
11.If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:
Answer: 3.876
Explanation:
12.Which of the following statements is not correct?
log10 10 = 1., log (2 + 3) =log (2 x 3) , log10 1 = 0, log (1 + 2 + 3) = log 1 + log 2 + log 3.
Answer: log (2 + 3) = log (2 x 3)
Explanation:
(a) Since loga a = 1, so log10 10 = 1.
(b) log (2 + 3) = log 5 and log (2 x 3) = log 6 = log 2 + log 3
log (2 + 3) →log (2 x 3)
(c) Since loga 1 = 0, so log10 1 = 0.
(d) log (1 + 2 + 3) = log 6 = log (1 x 2 x 3) = log 1 + log 2 + log 3.
So, (b) is incorrect.
VOLUME AND SURFACE AREA
1. A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:
Answer: 60kg
Explanation:
Volume of water displaced | = (3 x 2 x 0.01) m3 |
| = 0.06 m3. |
Mass of man | = Volume of water displaced x Density of water |
| = (0.06 x 1000) kg |
| = 60 kg. |
2. 50 men took a dip in a water tank 40 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4 m3, then the rise in the water level in the tank will be:
Answer: 25cm
Explanation:
Total volume of water displaced = (4 x 50) m3 = 200 m3.
Rise in water level = |
| 200 | m 0.25 m = 25 cm. |
40 x 20 |
3. The slant height of a right circular cone is 10 m and its height is 8 m. Find the area of its curved surface.
Answer: 60
m^2
Explanation:
l = 10 m,
h = 8 m.
So, r = sqrt(l2 – h2 ) = sqrt((10)2 - 82 )= 6 m.
Curved surface area = (
)rl = ((
) x 6 x 10) m2 = 60
m2.
4. A cistern 6m long and 4 m wide contains water up to a depth of 1 m 25 cm. The total area of the wet surface is:
Answer: 49 m2
Explanation:
Area of the wet surface | = [2(lb + bh + lh) - lb] |
| = 2(bh + lh) + lb |
| = [2 (4 x 1.25 + 6 x 1.25) + 6 x 4] m2 |
| = 49 m2. |
5. A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8 m, the volume of the box (in m3) is:
Answer: 5120 m3
Explanation:
Clearly, l = (48 - 16)m = 32 m,
b = (36 -16)m = 20 m,
h = 8 m.
Volume of the box = (32 x 20 x 8) m3 = 5120 m3.
6.The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height.
Answer: 7:3
Explanation:
r2h
| = | 924 | r = |
| 924 | x 2 |
| = 7 m. |
2 rh | 264 | 264 |
And, 2 rh = 264 h = |
| 264 x | 7 | x | 1 | x | 1 |
| = 6m. |
22 | 2 | 7 |
Required ratio = | 2r | = | 14 | = 7 : 3. |
h | 6 |
7. A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is:
Answer: 1dm
Explanation:
Let the thickness of the bottom be x cm.
Then, [(330 - 10) x (260 - 10) x (110 - x)] = 8000 x 1000
320 x 250 x (110 - x) = 8000 x 1000
(110 - x) = | 8000 x 1000 | = 100 |
320 x 250 |
x = 10 cm = 1 dm.
8. What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?
Answer: 498.35 cm2
Explanation:
h = 14 cm, r = 7 cm.
So, l =sqrt( (7)2 + (14)2 ) = 245 = 75 cm.
Total surface area | = rl + r2 |
|
= |
| 22 | x 7 x 75 + | 22 | x 7 x 7 | cm2 | 7 | 7 |
|
| = [154(sqrt(5) + 1)] cm2 |
| = (154 x 3.236) cm2 |
| = 498.35 cm2. |
9. A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?
Answer: 25:18
Explanation:
Volume of the large cube = (33 + 43 + 53) = 216 cm3.
Let the edge of the large cube be a.
So, a3 = 216
a = 6 cm.
Required ratio = |
| 6 x (32 + 42 + 52) |
| = | 50 | = 25 : 18. |
6 x 62 | 36 |
10. How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm?
Answer: 6400
Explanation:
Number of bricks = | Volume of the wall | = |
| 800 x 600 x 22.5 |
| = 6400. |
Volume of 1 brick | 25 x 11.25 x 6 |
11. A right triangle with sides 3 cm, 4 cm and 5 cm is rotated about the side of 3 cm to form a cone. The volume of the cone so formed is:
Answer:12
cm3
Explanation:

Clearly, we have r = 3 cm and h = 4 cm.
Volume = | 1 | |
| 1 | x x 32 x 4 | cm3 | = 12 cm3. |
3 | 3 |
12. A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:
Answer: 1200 m3
Explanation:
2(15 + 12) x h = 2(15 x 12)
Volume = |
| 15 x 12 x | 20 | m3 | = 1200 m3. |
3 |
13. In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is:
Answer: 750 m3
Explanation:
1 hectare = 10,000 m2
So, Area = (1.5 x 10000) m2 = 15000 m2.
Volume = (Area x Depth) = |
| 15000 x | 1 | m3 | = 750 m3. |
20 |
14. 66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be:
Answer: 84m
Explanation:
Let the length of the wire be h.
h = |
| 66 x 20 x 20 x 7 |
| = 8400 cm = 84 m. |
22 |
15. A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:
Answer: 3.696kg
Explanation:
External radius = 4 cm,
Internal radius = 3 cm.
Volume of iron |
= |
| 22 | x [(4)2 - (3)2] x 21 | cm3 | 7 |
|
|
|
| = 462 cm3. |
Weight of iron = (462 x 8) gm = 3696 gm = 3.696 kg.
PERMUTATION AND COMBINATION
| 1.In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there? |
Answer: 209 Explanation: We may have (1 boy and 3 girls) or (2 boys and 2 girls) or (3 boys and 1 girl) or (4 boys). Required number of ways | = (6C1 x 4C3) + (6C2 x 4C2) + (6C3 x 4C1) + (6C4) |
| = (6C1 x 4C1) + (6C2 x 4C2) + (6C3 x 4C1) + (6C2) |
|
= (6 x 4) + |
| 6 x 5 | x | 4 x 3 |
| + |
| 6 x 5 x 4 | x 4 |
| + |
| 6 x 5 |
| 2 x 1 | 2 x 1 | 3 x 2 x 1 | 2 x 1 |
|
| = (24 + 90 + 80 + 15) |
| = 209. |
|
2. How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated?
Answer: 20
Explanation:
Since each desired number is divisible by 5, so we must have 5 at the unit place. So, there is 1 way of doing it.
The tens place can now be filled by any of the remaining 5 digits (2, 3, 6, 7, 9). So, there are 5 ways of filling the tens place.
The hundreds place can now be filled by any of the remaining 4 digits. So, there are 4 ways of filling it.
Required number of numbers = (1 x 5 x 4) = 20.
3. In how many ways a committee, consisting of 5 men and 6 women can be formed from 8 men and 10 women?
Answer: 11760
Explanation:
Required number of ways | = (8C5 x 10C6) |
| = (8C3 x 10C4) |
|
= | 8 x 7 x 6 | x | 10 x 9 x 8 x 7 |
| 3 x 2 x 1 | 4 x 3 x 2 x 1 |
|
| = 11760. |
4. A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw?
Answer: 64
Explanation:
We may have(1 black and 2 non-black) or (2 black and 1 non-black) or (3 black).
Required number of ways | = (3C1 x 6C2) + (3C2 x 6C1) + (3C3) |
|
= |
| 3 x | 6 x 5 |
| + |
| 3 x 2 | x 6 |
| + 1 | 2 x 1 | 2 x 1 |
|
| = (45 + 18 + 1) |
| = 64. |
5. In how many different ways can the letters of the word 'DETAIL' be arranged in such a way that the vowels occupy only the odd positions?
Answer: 36
Explanation:
There are 6 letters in the given word, out of which there are 3 vowels and 3 consonants.
Let us mark these positions as under:
(1) (2) (3) (4) (5) (6)
Now, 3 vowels can be placed at any of the three places out 4, marked 1, 3, 5.
Number of ways of arranging the vowels = 3P3 = 3! = 6.
Also, the 3 consonants can be arranged at the remaining 3 positions.
Number of ways of these arrangements = 3P3 3! = 6.
Total number of ways = (6 x 6) = 36.
6.In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?
Answer: 63
Explanation:
Required number of ways = (7C5 x 3C2) = (7C2 x 3C1) = |
| 7 x 6 | x 3 |
| = 63. |
2 x 1 |
7. How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
Answer: 5040
Explanation:
'LOGARITHMS' contains 10 different letters.
Required number of words | = Number of arrangements of 10 letters, taking 4 at a time. |
| = 10P4 |
| = (10 x 9 x 8 x 7) |
| = 5040. |
8. In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together?
Answer: 120960
Explanation:
In the word 'MATHEMATICS', we treat the vowels AEAI as one letter.
Thus, we have MTHMTCS (AEAI).
Now, we have to arrange 8 letters, out of which M occurs twice, T occurs twice and the rest are different.
Number of ways of arranging these letters = | 8! | = 10080. |
(2!)(2!) |
Now, AEAI has 4 letters in which A occurs 2 times and the rest are different.
Number of ways of arranging these letters = | 4! | = 12. |
2! |
Required number of words = (10080 x 12) = 120960.
9. In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?
Answer: 720
Explanation:
The word 'OPTICAL' contains 7 different letters.
When the vowels OIA are always together, they can be supposed to form one letter.
Then, we have to arrange the letters PTCL (OIA).
Now, 5 letters can be arranged in 5! = 120 ways.
The vowels (OIA) can be arranged among themselves in 3! = 6 ways.
Required number of ways = (120 x 6) = 720.
10.In how many ways can the letters of the word 'LEADER' be arranged?
Answer: 360
Explanation:
The word 'LEADER' contains 6 letters, namely 1L, 2E, 1A, 1D and 1R.
Required number of ways = | 6! | = 360. |
(1!)(2!)(1!)(1!)(1!) |
11.From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?
Answer: 756
Explanation:
We may have (3 men and 2 women) or (4 men and 1 woman) or (5 men only).
Required number of ways | = (7C3 x 6C2) + (7C4 x 6C1) + (7C5) |
|
= |
| 7 x 6 x 5 | x | 6 x 5 |
| + (7C3 x 6C1) + (7C2) | 3 x 2 x 1 | 2 x 1 |
|
|
= 525 + |
| 7 x 6 x 5 | x 6 |
| + |
| 7 x 6 |
| 3 x 2 x 1 | 2 x 1 |
|
| = (525 + 210 + 21) |
| = 756. |
12. In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?
Answer: 720
Explanation:
The word 'LEADING' has 7 different letters.
When the vowels EAI are always together, they can be supposed to form one letter.
Then, we have to arrange the letters LNDG (EAI).
Now, 5 letters can be arranged in 5! = 120 ways.
The vowels (EAI) can be arranged among themselves in 3! = 6 ways.
Required number of ways = (120 x 6) = 720.
13. In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?
Answer: 50400
Explanation:
In the word 'CORPORATION', we treat the vowels OOAIO as one letter.
Thus, we have CRPRTN (OOAIO).
This has 7 (6 + 1) letters of which R occurs 2 times and the rest are different.
Number of ways arranging these letters = | 7! | = 2520. |
2! |
Now, 5 vowels in which O occurs 3 times and the rest are different, can be arranged
Required number of ways = (2520 x 20) = 50400.
14. Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?
Answer: 25200
Explanation:
Number of ways of selecting (3 consonants out of 7) and (2 vowels out of 4)
| = (7C3 x 4C2) |
|
= |
| 7 x 6 x 5 | x | 4 x 3 |
| 3 x 2 x 1 | 2 x 1 |
|
| = 210. |
Number of groups, each having 3 consonants and 2 vowels = 210.
Each group contains 5 letters.
Number of ways of arranging 5 letters among themselves | = 5! |
| = 5 x 4 x 3 x 2 x 1 |
| = 120. |
Required number of ways = (210 x 120) = 25200.
PROBABILITY
| 1.Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even? |
Answer: 3/4 Explanation: In a simultaneous throw of two dice, we have n(S) = (6 x 6) = 36. Then, E | = {(1, 2), (1, 4), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 2), (3, 4), (3, 6), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 2), (5, 4), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)} |
n(E) = 27.
|
2. In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is:
Answer: 21/46
Explanation:
Let S be the sample space and E be the event of selecting 1 girl and 2 boys.
Then, n(S) | = Number ways of selecting 3 students out of 25 |
| = 25C3 ` |
|
= | (25 x 24 x 23) | (3 x 2 x 1) |
|
| = 2300. |
n(E) | = (10C1 x 15C2) |
|
|
| = 1050. |
P(E) = | n(E) | = | 1050 | = | 21 | . |
n(S) | 2300 | 46 |
3. In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
Answer: 2/7
Explanation:
P (getting a prize) = | 10 | = | 10 | = | 2 | . |
(10 + 25) | 35 | 7 |
4. From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?
Answer: 1/221
Explanation:
Let S be the sample space.
Then, n(S) = 52C2 = | (52 x 51) | = 1326. |
(2 x 1) |
Let E = event of getting 2 kings out of 4.
n(E) = 4C2 = | (4 x 3) | = 6. |
(2 x 1) |
P(E) = | n(E) | = | 6 | = | 1 | . |
n(S) | 1326 | 221 |
5. Two dice are tossed. The probability that the total score is a prime number is:
Answer: 5/12
Explanation:
Clearly, n(S) = (6 x 6) = 36.
Let E = Event that the sum is a prime number.
Then E | = { (1, 1), (1, 2), (1, 4), (1, 6), (2, 1), (2, 3), (2, 5), (3, 2), (3, 4), (4, 1), (4, 3), (5, 2), (5, 6), (6, 1), (6, 5) } |
n(E) = 15.
6.A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is:
Answer: 1/26
Explanation:
Here, n(S) = 52.
Let E = event of getting a queen of club or a king of heart.
Then, n(E) = 2.
7. A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:
Answer: 2/91
Explanation:
Let S be the sample space.
Then, n(S) | = number of ways of drawing 3 balls out of 15 |
| = 15C3 |
|
= | (15 x 14 x 13) | (3 x 2 x 1) |
|
| = 455. |
Let E = event of getting all the 3 red balls.
n(E) = 5C3 = 5C2 = | (5 x 4) | = 10. |
(2 x 1) |
P(E) = | n(E) | = | 10 | = | 2 | . |
n(S) | 455 | 91 |
8. Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is:
Answer: 13/102
Explanation:
Let S be the sample space.
Then, n(S) = 52C2 = | (52 x 51) | = 1326. |
(2 x 1) |
Let E = event of getting 1 spade and 1 heart.
n(E) | = number of ways of choosing 1 spade out of 13 and 1 heart out of 13 |
| = (13C1 x 13C1) |
| = (13 x 13) |
| = 169. |
P(E) = | n(E) | = | 169 | = | 13 | . |
n(S) | 1326 | 102 |
9. One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card?
Answer: 3/13
Explanation:
Clearly, there are 52 cards, out of which there are 12 face cards.
P (getting a face card) = | 12 | = | 3 | . |
52 | 13 |
10. A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Answer: 4/7
Explanation:
Let number of balls = (6 + 8) = 14.
Number of white balls = 8.
P (drawing a white ball) = | 8 | = | 4 | . |
14 | 7 |
|
|
|
|
|
11. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
Answer: 9/20
Explanation:
Here, S = {1, 2, 3, 4, ...., 19, 20}.
Let E = event of getting a multiple of 3 or 5 = {3, 6 , 9, 12, 15, 18, 5, 10, 20}.
12. A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
Answer: 10/21
Explanation:
Total number of balls = (2 + 3 + 2) = 7.
Let S be the sample space.
Then, n(S) | = Number of ways of drawing 2 balls out of 7 |
| = 7C2 ` |
|
|
| = 21.
|
Let E = Event of drawing 2 balls, none of which is blue.
n(E) | = Number of ways of drawing 2 balls out of (2 + 3) balls. |
| = 5C2 |
|
|
| = 10. |
13. In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
Answer: 1/3
Explanation:
Total number of balls = (8 + 7 + 6) = 21.
Let E | = event that the ball drawn is neither red nor green |
| = event that the ball drawn is blue. |
n(E) = 7.
14. What is the probability of getting a sum 9 from two throws of a dice?
Answer: 1/9
Explanation:
In two throws of a die, n(S) = (6 x 6) = 36.
Let E = event of getting a sum ={(3, 6), (4, 5), (5, 4), (6, 3)}.
15. Three unbiased coins are tossed. What is the probability of getting at most two heads?
Answer: 7/8
Explanation:
Here S = {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH}
Let E = event of getting at most two heads.
Then E = {TTT, TTH, THT, HTT, THH, HTH, HHT}.
AVERAGE
| 1.The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team? |
Answer: 23yrs Explanation: Let the average age of the whole team by x years. 11x - (26 + 29) = 9(x -1) 11x - 9x = 46 2x = 46 x = 23. So, average age of the team is 23 years.
|
2. The average monthly income of P and Q is Rs. 5050. The average monthly income of Q and R is Rs. 6250 and the average monthly income of P and R is Rs. 5200. The monthly income of P is:
Answer: Rs.4000
Explanation:
Let P, Q and R represent their respective monthly incomes. Then, we have:
P + Q = (5050 x 2) = 10100 .... (i)
Q + R = (6250 x 2) = 12500 .... (ii)
P + R = (5200 x 2) = 10400 .... (iii)
Adding (i), (ii) and (iii), we get: 2(P + Q + R) = 33000 or P + Q + R = 16500 .... (iv)
Subtracting (ii) from (iv), we get P = 4000.
P's monthly income = Rs. 4000.
3. The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is:
Answer: 40yrs
Explanation:
Sum of the present ages of husband, wife and child = (27 x 3 + 3 x 3) years = 90 years.
Sum of the present ages of wife and child = (20 x 2 + 5 x 2) years = 50 years.
Husband's present age = (90 - 50) years = 40 years.
4. A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?
Answer: Rs.7.98
Explanation:
Total quantity of petrol consumed in 3 years |
= |
| 4000 | + | 4000 | + | 4000 |
| litres | 7.50 | 8 | 8.50 |
|
|
|
|
|
Total amount spent = Rs. (3 x 4000) = Rs. 12000.
Average cost = Rs. |
| 12000 x 51 |
| = Rs. | 6120 | = Rs. 7.98 |
76700 | 767 |
5. In Arun's opinion, his weight is greater than 65 kg but less than 72 kg. His brother doest not agree with Arun and he thinks that Arun's weight is greater than 60 kg but less than 70 kg. His mother's view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Arun?
Answer: 67kg
Explanation:
Let Arun's weight by X kg.
According to Arun, 65 < X < 72
According to Arun's brother, 60 < X < 70.
According to Arun's mohter, X <= 68
The values satisfying all the above conditions are 66, 67 and 68.
Required average = |
| 66 + 67 + 68 |
| = |
| 201 |
| = 67 kg. |
3 | 3 |
6. The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is:
Answer: 31kg
Explanation:
Let A, B, C represent their respective weights. Then, we have:
A + B + C = (45 x 3) = 135 .... (i)
A + B = (40 x 2) = 80 .... (ii)
B + C = (43 x 2) = 86 ....(iii)
Adding (ii) and (iii), we get: A + 2B + C = 166 .... (iv)
Subtracting (i) from (iv), we get : B = 31.
B's weight = 31 kg.
7. The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.
Answer: 48.55
Explanation:
Required average |
= |
| 50.25 x 16 + 45.15 x 8 |
| 16 + 8 |
|
|
|
|
|
| = 48.55 |
8. A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is:
Answer: 285
Explanation:
Since the month begins with a Sunday, to there will be five Sundays in the month.
9. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is:
Answer: 54.68
Explanation:
Required average |
= |
| 55 x 50 + 60 x 55 + 45 x 60 |
| 55 + 60 + 45 |
|
|
|
|
|
| = 54.68 |
10.A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half (1/2). The number of pupils in the class is:
Answer: 40
Explanation:
Let there be x pupils in the class.
Total increase in marks = |
| x x | 1 |
| = | x |
2 | 2 |
| x | = (83 - 63) | x | = 20 x= 40. |
2 | 2 |
|
|
|
|
|
11. In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?
Answer: 6.25
Explanation:
Required run rate = |
| 282 - (3.2 x 10) |
| = | 250 | = 6.25 |
40 | 40 |
12. A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
Answer: 31(5/7)yrs
Explanation:
Required average |
= |
| 67 x 2 + 35 x 2 + 6 x 3 |
| 2 + 2 + 3 |
|
|
|
|
|
|
|
13. A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500?
Answer: Rs.4991
Explanation:
Total sale for 5 months = Rs. (6435 + 6927 + 6855 + 7230 + 6562) = Rs. 34009.
Required sale = Rs. [ (6500 x 6) - 34009 ]
= Rs. (39000 - 34009)
= Rs. 4991.
14. The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
Answer: 85kg
Explanation:
Total weight increased = (8 x 2.5) kg = 20 kg.
Weight of new person = (65 + 20) kg = 85 kg.
15. The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
Answer: 19
Explanation:
Average of 20 numbers = 0.
Sum of 20 numbers (0 x 20) = 0.
It is quite possible that 19 of these numbers may be positive and if their sum is a then 20th number is (-a).
AREA
1.The diagonal of the floor of a rectangular closet is 7(1/2) feet. The shorter side of the closet is 4(1/2)feet. What is the area of the closet in square feet?
Answer: 27sq.ft
Explanation:
Other Side = √ (15/2)2 - (9/2)2 ft
= 6 ft.
Area of closet = (6 x 4.5) sq. ft = 27 sq. ft.
2. A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
Answer: 28%
Explanation:
Let original length = x and original breadth = y.
Decrease % = |
| 7 | xy x | 1 | x 100 | % | = 28%. |
25 | xy |
3. A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?
Answer: 30%(approx)
Explanation:
Let the side of the square(ABCD) be x metres.
Then, AB + BC = 2x metres.

AC = sqrt2x = (1.41x) m.
Saving on 2x metres = (0.59x) m.
Saving % = |
| 0.59x | x 100 | % | = 30% (approx.) |
2x |
4. The diagonal of a rectangle is 41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:
Answer: 18cm
Explanation:
Sqrt(l2 + b2) = sqrt41.
Also, lb = 20.
(l + b)2 = (l2 + b2) + 2lb = 41 + 40 = 81
(l + b) = 9.
Perimeter = 2(l + b) = 18 cm.
5. What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?
Answer: 814
Explanation:
Length of largest tile = H.C.F. of 1517 cm and 902 cm = 41 cm.
Area of each tile = (41 x 41) cm2.
Required number of tiles = |
| 1517 x 902 |
| = 814. |
41 x 41 |
6. The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is:
Answer: 2520 m2
Explanation:
We have: (l - b) = 23 and 2(l + b) = 206 or (l + b) = 103.
Solving the two equations, we get: l = 63 and b = 40.
Area = (l x b) = (63 x 40) m2 = 2520 m2.
7. The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
Answer: 50%
Explanation:
Let original length = x and original breadth = y.
Original area = xy.
New breadth = 3y.
Increase % = |
| 1 | xy x | 1 | x 100 | % | = 50%. |
2 | xy |
8. The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ 26.50 per metre is Rs. 5300, what is the length of the plot in metres?
Answer: 60m
Explanation:
Let breadth = x metres.
Then, length = (x + 20) metres.
Perimeter = |
| 5300 |
| m = 200 m. |
26.50 |
2[(x + 20) + x] = 200
2x + 20 = 100
2x = 80
x = 40.
Hence, length = x + 20 = 60 m.
9. A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required?
Answer: 88ft
Explanation:
We have: l = 20 ft and lb = 680 sq. ft.
So, b = 34 ft.
Length of fencing = (l + 2b) = (20 + 68) ft = 88 ft.
10. A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is:
Answer: Rs.558
Explanation:
Area to be plastered | = [2(l + b) x h] + (l x b) |
| = {[2(25 + 12) x 6] + (25 x 12)} m2 |
| = (444 + 300) m2 |
| = 744 m2. |
Cost of plastering = Rs. |
| 744 x | 75 |
| = Rs. 558. |
100 |
11.The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is:
Answer: 153600 m2
Explanation:
Perimeter = Distance covered in 8 min. = |
| 12000 | x 8 | m = 1600 m. |
60 |
Let length = 3x metres and breadth = 2x metres.
Then, 2(3x + 2x) = 1600 or x = 160.
Length = 480 m and Breadth = 320 m.
Area = (480 x 320) m2 = 153600 m2.
12.A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?
Answer: x=3
Explanation:
Area of the park = (60 x 40) m2 = 2400 m2.
Area of the lawn = 2109 m2.
Area of the crossroads = (2400 - 2109) m2 = 291 m2.
Let the width of the road be x metres. Then,
60x + 40x - x2 = 291
x2 - 100x + 291 = 0
(x - 97)(x - 3) = 0
x = 3.
13.The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?
Answer: 18cm
Explanation:
2l + 2b = 5b
3b = 2l
Then, Area = 216 cm2
l x b = 216
l2 = 324
l = 18 cm.
14. An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
Answer: 4.04%
Explanation:
100 cm is read as 102 cm.
A1 = (100 x 100) cm2 and A2 (102 x 102) cm2.
(A2 - A1) = [(102)2 - (100)2]
= (102 + 100) x (102 - 100)
= 404 cm2.
Percentage error = |
| 404 | x 100 | % | = 4.04% |
100 x 100 |
15. The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
Answer: 44%
Explanation:
Let original length = x metres and original breadth = y metres.
Original area = (xy) m2.
New length = |
| 120 | x | m | = |
| 6 | x | m. |
100 | 5 |
New breadth = |
| 120 | y | m | = |
| 6 | y | m. |
100 | 5 |
New Area = |
| 6 | x x | 6 | y | m2 | = |
| 36 | xy | m2. |
5 | 5 | 25 |
The difference between the original area = xy and new-area 36/25 xy is
= (36/25)xy - xy
= xy(36/25 - 1)
= xy(11/25) or (11/25)xy
Increase % = |
| 11 | xy x | 1 | x 100 | % | = 44%. |
25 | xy |
RACES AND GAMES
1.In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by:
Answer: 25m
Explanation:
A : B = 200 : 169.
A : C = 200 : 182.
C | = |
| C | x | A |
| = |
| 182 | x | 200 |
| = 182 : 169. |
B | A | B | 200 | 169 |
When C covers 182 m, B covers 169 m.
When C covers 350 m, B covers |
| 169 | x 350 | m | = 325 m. |
182 |
Therefore, C beats B by (350 - 325) m = 25 m.
2. In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by:
Answer: 20m
Explanation:
Distance covered by B in 9 sec. = |
| 100 | x 9 | m | = 20 m. |
45 |
A beats B by 20 metres.
3. In a game of 100 points, A can give B 20 points and C 28 points. Then, B can give C:
Answer: 10
Explanation:
A : B = 100 : 80.
A : C = 100 : 72.
| B | = |
| B | x | A |
| = |
| 80 | x | 100 |
| = | 10 | = | 100 | = 100 : 90. |
C | A | C | 100 | 72 | 9 | 90 |
B can give C 10 points.
4. In a 200 metres race A beats B by 35 m or 7 seconds. A's time over the course is:
Answer: 33sec
Explanation:
B runs 35 m in 7 sec.
B covers 200 m in |
| 7 | x 200 |
| = 40 sec. |
35 |
B's time over the course = 40 sec.
A's time over the course (40 - 7) sec = 33 sec.
5. A can run 22.5 m while B runs 25 m. In a kilometre race B beats A by:
Answer: 100m
Explanation:
When B runs 25 m, A runs | 45 | m. |
2 |
When B runs 1000 m, A runs |
| 45 | x | 1 | x 1000 | m | = 900 m. |
2 | 25 |
B beats A by 100 m.
6.In a 300 m race A beats B by 22.5 m or 6 seconds. B's time over the course is:
Answer: 80sec
Explanation:
B covers 300 m in |
| 6 x | 2 | x 300 | sec | = 80 sec. |
45 |
7. A runs 1(2/3) times as fast as B. If A gives B a start of 80 m, how far must the winning post be so that A and B might reach it at the same time?
Answer: 200m
Explanation:
Ratio of the speeds of A and B = | 5 | : 1 = 5 : 3. |
3 |
Thus, in race of 5 m, A gains 2 m over B.
2 m are gained by A in a race of 5 m.
80 m will be gained by A in race of |
| 5 | x 80 | m | = 200 m. |
2 |
Winning post is 200 m away from the starting point.
8. In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race, A can beat C by:
Answer: 28m
Explanation:
A : B = 100 : 75
B : C = 100 : 96.
A : C = |
| A | x | B |
| = |
| 100 | x | 100 |
| = | 100 | = 100 : 72. |
B | C | 75 | 96 | 72 |
A beats C by (100 - 72) m = 28 m.
9.At a game of billiards, A can give B 15 points in 60 and A can give C to 20 points in 60. How many points can B give C in a game of 90?
Answer: 10
Explanation:
A : B = 60 : 45.
A : C = 60 : 40.
| B | = |
| B | x | A |
| = |
| 45 | x | 60 |
| = | 45 | = | 90 | = 90 : 80. |
C | A | C | 60 | 40 | 40 | 80 |
B can give C 10 points in a game of 90.
10.In a 100 m race, A beats B by 10 m and C by 13 m. In a race of 180 m, B will beat C by:
Answer: 6m
Explanation:
A : B = 100 : 90.
A : C = 100 : 87.
B | = | B | x | A | = | 90 | x | 100 | = | 30 | . |
C | A | C | 100 | 87 | 29 |
When B runs 30 m, C runs 29 m.
When B runs 180 m, C runs |
| 29 | x 180 | m | = 174 m. |
30 |
B beats C by (180 - 174) m = 6 m.
11.In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by:
Answer: 20m
Explanation:
To reach the winning post A will have to cover a distance of (500 - 140)m, i.e., 360 m.
While A covers 3 m, B covers 4 m.
While A covers 360 m, B covers |
| 4 | x 360 | m | = 480 m. |
3 |
Thus, when A reaches the winning post, B covers 480 m and therefore remains 20 m behind.
A wins by 20 m.
12.A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is:
Answer: 4.14kmph
Explanation:
A's speed = |
| 5 x | 5 | m/sec | = | 25 | m/sec. |
18 | 18 |
Time taken by A to cover 100 m = |
| 100 x | 18 | sec | = 72 sec. |
25 |
Time taken by B to cover 92 m = (72 + 8) = 80 sec.
B's speed = |
| 92 | x | 18 | kmph | = 4.14 kmph. |
80 | 5 |
13.In a 100 m race, A can give B 10 m and C 28 m. In the same race B can give C:
Answer: 20m
Explanation:
A : B = 100 : 90.
A : C = 100 : 72.
B : C = | B | x | A | = | 90 | x | 100 | = | 90 | . |
A | C | 100 | 72 | 72 |
When B runs 90 m, C runs 72 m.
When B runs 100 m, C runs |
| 72 | x 100 | m | = 80 m. |
90 |
B can give C 20 m.
BOATS AND STREAMS
1.A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water? |
Answer: 6kmph Explanation: Rate downstream = |
| 16 | kmph = 8 kmph. | 2 |
Rate upstream = |
| 16 | kmph = 4 kmph. | 4 |
Speed in still water = | 1 | (8 + 4) kmph = 6 kmph. | 2 |
|
2. The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:
Answer: 3.6m
Explanation:
Speed downstream = (15 + 3) kmph = 18 kmph.
Distance travelled = |
| 18 x | 12 | km = 3.6 km. |
60 |
3. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:
Answer: 2mph
Explanation:
Let the speed of the stream x mph. Then,
Speed downstream = (10 + x) mph,
Speed upstream = (10 - x) mph.
| 36 | - | 36 | = | 90 |
(10 - x) | (10 + x) | 60 |
72x x 60 = 90 (100 - x2)
x2 + 48x - 100 = 0
(x+ 50)(x - 2) = 0
x = 2 mph.
4. A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?
Answer: 2.4km
Explanation:
Speed downstream = (5 + 1) kmph = 6 kmph.
Speed upstream = (5 - 1) kmph = 4 kmph.
Let the required distance be x km.
2x + 3x = 12
5x = 12
x = 2.4 km.
5. A boat covers a certain distance downstream in 1 hour, while it comes back in 1(1/2) hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?
Answer: 15kmph
Explanation:
Let the speed of the boat in still water be x kmph. Then,
Speed downstream = (x + 3) kmph,
Speed upstream = (x - 3) kmph.
(x + 3) x 1 = (x - 3) x | 3 |
2 |
2x + 6 = 3x - 9
x = 15 kmph.
6.A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?
Answer: 1hr15min
Explanation:
Rate downstream = |
| 1 | x 60 | km/hr = 6 km/hr. |
10 |
Rate upstream = 2 km/hr.
Speed in still water = | 1 | (6 + 2) km/hr = 4 km/hr. |
2 |
Required time = |
| 5 | hrs = 1 | 1 | hrs = 1 hr 15 min. |
4 | 4 |
7. A man can row three-quarters of a kilometre against the stream in 11(1/4) minutes and down the stream in 7(1/2) minutes. The speed (in km/hr) of the man in still water is:
Answer: 5km/hr
Explanation:
We can write three-quarters of a kilometre as 750 metres,
and 11(1/4) minutes as 675 seconds.
Rate upstream = |
| 750 | m/sec | = | 10 | m/sec. |
675 | 9 |
Rate downstream = |
| 750 | m/sec | = | 5 | m/sec. |
450 | 3 |
Rate in still water = | 1 |
| 10 | + | 5 | m/sec |
2 | 9 | 3 |
= 5 km/hr.
8.Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:
Answer: 24hrs
Explanation:
Speed upstream = 7.5 kmph.
Speed downstream = 10.5 kmph.
Total time taken = |
| 105 | + | 105 | hours = 24 hours. |
7.5 | 10.5 |
9. A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:
Answer: 3:1
Explanation:
Let man's rate upstream be x kmph.
Then, his rate downstream = 2x kmph.
(Speed in still water) : (Speed of stream) = |
| 2x + x |
| : |
| 2x - x |
|
2 | 2 |
= 3 : 1.
10. A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:
Answer: 1km/hr
Explanation:
Suppose he move 4 km downstream in x hours. Then,
Speed downstream = |
| 4 |
| km/hr. |
x |
| 48 | + | 48 | = 14 or x = | 1 | . |
(4/x) | (3/x) | 2 |
So, Speed downstream = 8 km/hr, Speed upstream = 6 km/hr.
Rate of the stream = | 1 | (8 - 6) km/hr = 1 km/hr. |
2 |
11.A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
Answer: 4hrs
Explanation:
Speed downstream = (13 + 4) km/hr = 17 km/hr.
Time taken to travel 68 km downstream = |
| 68 | hrs = 4 hrs. |
17 |
12. A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:
Answer: 10km/hr
Explanation:
Man's rate in still water = (15 - 2.5) km/hr = 12.5 km/hr.
Man's rate against the current = (12.5 - 2.5) km/hr = 10 km/hr.
13. A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?
Answer: 8:3
Explanation:
Let the man's rate upstream be x kmph and that downstream be y kmph.
Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs.
Required ratio = |
| y + x |
| : |
| y - x |
|
2 | 2 |
= 8 : 3.
14. A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:
Answer: 5km/hr
Explanation:
Let the speed of the stream be x km/hr. Then,
Speed downstream = (15 + x) km/hr,
Speed upstream = (15 - x) km/hr.
| 30 | + | 30 | = 4 | 1 |
(15 + x) | (15 - x) | 2 |
9x2 = 225
x2 = 25
x = 5 km/hr.
15. In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is:
Answer: 8kmph
Explanation:
Speed in still water = | 1 | (11 + 5) kmph = 8 kmph. |
2 |
SURDS AND INDICES
1.(256)0.16 x (256)0.09 = ?
Answer: 4
Explanation:
(256)0.16 x (256)0.09 = (256)(0.16 + 0.09)
= (256)0.25
= (256)(25/100)
= (256)(1/4)
= (44)(1/4)
= 44(1/4)
= 41
= 4
2. The value of [(10)150 ÷ (10)146]
Answer: 10000
Explanation:
(10)150 ÷ (10)146 = | 10150 |
10146 |
= 10150 - 146
= 104
= 10000.
3.Find value of x if (ab)(x-1) = (ba)(x-3)
Answer: 2
Explanation:
(ab)(x-1) = (ba)(x-3)
(ab)(x-1) = (ab)-(x-3)
x - 1 = 3 - x
2x = 4
x = 2.
4.(243)n/5 x 32n + 1 | = ? |
9n x 3n - 1 |
Answer: 9
Explanation:
Given Expression |
= | (243)(n/5) x 32n + 1 | 9n x 3n - 1 |
|
|
= | (35)(n/5) x 32n + 1 | (32)n x 3n - 1 |
|
|
= | (35 x (n/5) x 32n + 1 | (32n x 3n - 1 |
|
|
= | 3n x 32n + 1 | 32n x 3n - 1 |
|
|
= | 3(n + 2n + 1) | 3(2n + n - 1) |
|
|
|
|
= 3(3n + 1 - 3n + 1) = 32 = 9. | |
|
5. (0.04)-1.5 = ?
Answer: 125
Explanation:
= (25)(3/2)
= (52)(3/2)
= (5)2 x (3/2)
= 53
= 125.
6.(25)7.5 x (5)2.5 ÷ (125)1.5 = 5?
Answer: 13
Explanation:
Let (25)7.5 x (5)2.5 ÷ (125)1.5 = 5x.
Then, | (52)7.5 x (5)2.5 | = 5x |
(53)1.5 |
| 5(2 x 7.5) x 52.5 | = 5x |
5(3 x 1.5) |
5x = 5(15 + 2.5 - 4.5)
5x = 513
x = 13.
7.
1 | + | 1 | = ? |
1 + a(n - m) | 1 + a(m - n) |
Answer: 1
Explanation:
1 | + | 1 | = |
|
1 + a(n - m) | 1 + a(m - n) |
= 1.
8. If m and n are whole numbers such that mn = 121, the value of (m - 1)n + 1 is:
Answer: 1000
Explanation:
We know that 112 = 121.
Putting m = 11 and n = 2, we get:
(m - 1)n + 1 = (11 - 1)(2 + 1) = 103 = 1000.
9. | xb |
| (b + c - a) | . |
| xc |
| (c + a - b) | . |
| xa |
| (a + b - c) | = ? |
xc | xa | xb |
Answer: 1
Explanation:
Given Exp. |
= x(b - c)(b + c - a) . x(c - a)(c + a - b) . x(a - b)(a + b - c) | |
|
|
= x(b - c)(b + c) - a(b - c) . x(c - a)(c + a) - b(c - a) . x(a - b)(a + b) - c(a - b) | |
|
|
= x(b2 - c2 + c2 - a2 + a2 - b2) . x-a(b - c) - b(c - a) - c(a - b) | |
|
|
|
|
|
10. If x = 3 + 2√2, then the value of | √x | - | 1 | is: |
√x |
Answer: 2
Explanation:
= (3 + 2√2) + | 1 | - 2 |
(3 + 2√2) |
= (3 + 2√2) + | 1 | x | (3 - 2√2) | - 2 |
(3 + 2√2) | (3 - 2√2) |
= (3 + 2√2) + (3 - 2√2) - 2
= 4.
→(x-1x)2=2
11.(17)3.5 x (17)? = 178
Answer: 4.5
Explanation:
Let (17)3.5 x (17)x = 178.
Then, (17)3.5 + x = 178.
3.5 + x = 8
x = (8 - 3.5)
x = 4.5
12.Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:
Answer: 2.9(approx)
Explanation:
xz = y2 10(0.48z) = 10(2 x 0.70) = 101.40
0.48z = 1.40
z = | 140 | = | 35 | = 2.9 (approx.) |
48 | 12 |
13. If 5a = 3125, then the value of 5(a - 3) is:
Answer: 25
Explanation:
5a = 3125 5a = 55
a = 5.
5(a - 3) = 5(5 - 3) = 52 = 25.
14. If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:
Answer: 4
Explanation:
3x - y = 27 = 33 → x - y = 3 ....(i)
3x + y = 243 = 35 → x + y = 5 ....(ii)
On solving (i) and (ii), we get x = 4.
15.
1 | + | 1 | + | 1 | = ? |
1 + x(b - a) + x(c - a) | 1 + x(a - b) + x(c - b) | 1 + x(b - c) + x(a - c) |
Answer: 1
Explanation:
= | xa | + | xb | + | xc |
(xa + xb + xc) | (xa + xb + xc) | (xa + xb + xc) |
= | (xa + xb + xc) |
(xa + xb + xc) |
= 1.
PIPES AND CISTERN
1.Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is:
Answer: 120gallons
Explanation:
Work done by the waste pipe in 1 minute = | 1 | - |
| 1 | + | 1 |
|
15 | 20 | 24 |
= - | 1 | . [-ve sign means emptying] |
40 |
Volume of | 1 | part = 3 gallons. |
40 |
Volume of whole = (3 x 40) gallons = 120 gallons.
2. A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank?
Answer: 35hrs
Explanation:
Suppose pipe A alone takes x hours to fill the tank.
Then, pipes B and C will take | x | and | x | hours respectively to fill the tank. |
2 | 4 |
x = 35 hrs.
3. Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?
Answer: 6
Explanation:
Let the cistern be filled by pipe A alone in x hours.
Then, pipe B will fill it in (x + 6) hours.
x2 - 2x - 24 = 0
(x -6)(x + 4) = 0
x = 6. [neglecting the negative value of x]
4. Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?
Answer: 12min
Explanation:
Part filled by A in 1 min = | 1 | . |
20 |
Part filled by B in 1 min = | 1 | . |
30 |
Part filled by (A + B) in 1 min = |
| 1 | + | 1 |
| = | 1 | . |
20 | 30 | 12 |
Both pipes can fill the tank in 12 minutes.
5. Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank?
Answer: 14min40sec
Explanation:
Part filled in 4 minutes = 4 |
| 1 | + | 1 |
| = | 7 | . |
15 | 20 | 15 |
Remaining part = |
| 1 - | 7 |
| = | 8 | . |
15 | 15 |
Part filled by B in 1 minute = | 1 |
20 |
x = |
| 8 | x 1 x 20 |
| = 10 | 2 | min = 10 min. 40 sec. |
15 | 3 |
The tank will be full in (4 min. + 10 min. + 40 sec.) = 14 min. 40 sec.
6.One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in:
Answer: 144min
Explanation:
Let the slower pipe alone fill the tank in x minutes.
Then, faster pipe will fill it in | x | minutes. |
3 |
x = 144 min.
7. A large tanker can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?
Answer: 30min
Explanation:
Part filled by (A + B) in 1 minute = |
| 1 | + | 1 |
| = | 1 | . |
60 | 40 | 24 |
Suppose the tank is filled in x minutes.
x = 30 min.
8. A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
Answer: 3hrs45min
Explanation:
Time taken by one tap to fill half of the tank = 3 hrs.
Part filled by the four taps in 1 hour = |
| 4 x | 1 |
| = | 2 | . |
6 | 3 |
Remaining part = |
| 1 - | 1 |
| = | 1 | . |
2 | 2 |
x = |
| 1 | x 1 x | 3 |
| = | 3 | hours i.e., 45 mins. |
2 | 2 | 4 |
So, total time taken = 3 hrs. 45 mins.
9. Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternately, the tank will be full in:
Answer: 7hrs
Explanation:
(A + B)'s 1 hour's work = |
| 1 | + | 1 |
| = | 9 | = | 3 | . |
12 | 15 | 60 | 20 |
(A + C)'s hour's work = |
| 1 | + | 1 |
| = | 8 | = | 2 | . |
12 | 20 | 60 | 15 |
Part filled in 2 hrs = |
| 3 | + | 2 |
| = | 17 | . |
20 | 15 | 60 |
Part filled in 6 hrs = |
| 3 x | 17 |
| = | 17 | . |
60 | 20 |
Remaining part = |
| 1 - | 17 |
| = | 3 | . |
20 | 20 |
Now, it is the turn of A and B and | 3 | part is filled by A and B in 1 hour. |
20 |
Total time taken to fill the tank = (6 + 1) hrs = 7 hrs.
10. Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The number of hours taken by C alone to fill the tank is:
Answer:14hrs
Explanation:
Part filled in 2 hours = | 2 | = | 1 |
6 | 3 |
Remaining part = |
| 1 - | 1 |
| = | 2 | . |
3 | 3 |
(A + B)'s 7 hour's work = | 2 |
3 |
(A + B)'s 1 hour's work = | 2 |
21 |
C's 1 hour's work = { (A + B + C)'s 1 hour's work } - { (A + B)'s 1 hour's work }
C alone can fill the tank in 14 hours.
11.Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes, and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P,Q and R respectively. What is the proportion of the solution R in the liquid in the tank after 3 minutes?
Answer: 6/11
Explanation:
Part filled by (A + B + C) in 3 minutes = 3 |
| 1 | + | 1 | + | 1 |
| = |
| 3 x | 11 |
| = | 11 | . |
30 | 20 | 10 | 60 | 20 |
Part filled by C in 3 minutes = | 3 | . |
10 |
Required ratio = |
| 3 | x | 20 |
| = | 6 | . |
10 | 11 | 11 |
12.A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:
Answer: 15
Explanation:
Suppose, first pipe alone takes x hours to fill the tank .
Then, second and third pipes will take (x -5) and (x - 9) hours respectively to fill the tank.
| x - 5 + x | = | 1 |
x(x - 5) | (x - 9) |
(2x - 5)(x - 9) = x(x - 5)
x2 - 18x + 45 = 0
(x - 15)(x - 3) = 0
x = 15. [neglecting x = 3]
13.A pump can fill a tank with water in 2 hours. Because of la leak, it took 2 hours to fill the tank. The leak can drain all the water of the tank in:
Answer: 14hrs
Explanation:
Work done by the leak in 1 hour = |
| 1 | - | 3 |
| = | 1 | . |
2 | 7 | 14 |
Leak will empty the tank in 14 hrs.
14.Two pipes A and B can fill a cistern in 37 minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if the B is turned off after:
Answer: 9
Explanation:
Let B be turned off after x minutes. Then,
Part filled by (A + B) in x min. + Part filled by A in (30 -x) min. = 1.
x |
| 2 | + | 1 |
| + (30 - x). | 2 | = 1 |
75 | 45 | 75 |
11x + 180 - 6x = 225.
x = 9.
15.Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:
Answer: 3(9/17)hrs
Explanation:
Net part filled in 1 hour |
| 1 | + | 1 | - | 1 |
| = | 17 | . |
5 | 6 | 12 | 60 |
The tank will be full in | 60 | hours i.e., 3 | 9 | hours. |
17 | 17 |
CALENDAR
1.If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004?
Answer: sunday
Explanation:
The year 2004 is a leap year. So, it has 2 odd days.
But, Feb 2004 not included because we are calculating from March 2004 to March 2005. So it has 1 odd day only.
The day on 6th March, 2005 will be 1 day beyond the day on 6th March, 2004.
Given that, 6th March, 2005 is Monday.
6th March, 2004 is Sunday (1 day before to 6th March, 2005).
2. On what dates of April, 2001 did Wednesday fall?
Answer: In April, 2001 Wednesday falls on 4th, 11th, 18th and 25th.
Explanation:
We shall find the day on 1st April, 2001.
1st April, 2001 = (2000 years + Period from 1.1.2001 to 1.4.2001)
Odd days in 1600 years = 0
Odd days in 400 years = 0
Jan. Feb. March April
(31 + 28 + 31 + 1) = 91 days → 0 odd days.
Total number of odd days = (0 + 0 + 0) = 0
On 1st April, 2001 it was Sunday.
In April, 2001 Wednesday falls on 4th, 11th, 18th and 25th.
3. How many days are there in x weeks x days?
Answer: 8x days
Explanation:
x weeks x days = (7x + x) days = 8x days.
4. The last day of a century cannot be
Answer: Tuesday or Thursday or Saturday
Explanation:
100 years contain 5 odd days.
→Last day of 1st century is Friday.
200 years contain (5 x 2) 3 odd days.
→Last day of 2nd century is Wednesday.
300 years contain (5 x 3) = 15 1 odd day.
→Last day of 3rd century is Monday.
400 years contain 0 odd day.
Last day of 4th century is Sunday.
This cycle is repeated.
Last day of a century cannot be Tuesday or Thursday or Saturday.
5. On 8th Feb, 2005 it was Tuesday. What was the day of the week on 8th Feb, 2004?
Answer: sunday
Explanation:
The year 2004 is a leap year. It has 2 odd days.
The day on 8th Feb, 2004 is 2 days before the day on 8th Feb, 2005.
Hence, this day is Sunday.
6.The calendar for the year 2007 will be the same for the year:
Answer: 2018
Explanation:
Count the number of odd days from the year 2007 onwards to get the sum equal to 0 odd day.
Year : 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Odd day : 1 2 1 1 1 2 1 1 1 2 1
Sum = 14 odd days → 0 odd days.
→Calendar for the year 2018 will be the same as for the year 2007.
7. Which of the following is not a leap year?
Answer: 700
Explanation:
The century divisible by 400 is a leap year.
The year 700 is not a leap year.
8. On 8th Dec, 2007 Saturday falls. What day of the week was it on 8th Dec, 2006?
Answer: Friday
Explanation:
The year 2006 is an ordinary year. So, it has 1 odd day.
So, the day on 8th Dec, 2007 will be 1 day beyond the day on 8th Dec, 2006.
But, 8th Dec, 2007 is Saturday.
8th Dec, 2006 is Friday.
9. January 1, 2008 is Tuesday. What day of the week lies on Jan 1, 2009?
Answer: Thursday
Explanation:
The year 2008 is a leap year. So, it has 2 odd days.
1st day of the year 2008 is Tuesday (Given)
So, 1st day of the year 2009 is 2 days beyond Tuesday.
Hence, it will be Thursday.
10. January 1, 2007 was Monday. What day of the week lies on Jan. 1, 2008?
Answer: Tuesday
Explanation:
The year 2007 is an ordinary year. So, it has 1 odd day.
1st day of the year 2007 was Monday.
1st day of the year 2008 will be 1 day beyond Monday.
Hence, it will be Tuesday.
11.Today is Monday. After 61 days, it will be:
Answer: Saturday.
Explanation:
Each day of the week is repeated after 7 days.
So, after 63 days, it will be Monday.
After 61 days, it will be Saturday.
12.What will be the day of the week 15th August, 2010?
Answer: Sunday
Explanation:
15th August, 2010 = (2009 years + Period 1.1.2010 to 15.8.2010)
Odd days in 1600 years = 0
Odd days in 400 years = 0
9 years = (2 leap years + 7 ordinary years) = (2 x 2 + 7 x 1) = 11 odd days = 4 odd days.
Jan. Feb. March April May June July Aug.
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 15) = 227 days
227 days = (32 weeks + 3 days) = 3 odd days.
Total number of odd days = (0 + 0 + 4 + 3) = 7 = 0 odd days.
Given day is Sunday.
13.What was the day of the week on 17th June, 1998?
Answer: Wednesday.
Explanation:
17th June, 1998 = (1997 years + Period from 1.1.1998 to 17.6.1998)
Odd days in 1600 years = 0
Odd days in 300 years = (5 x 3) = 1
97 years has 24 leap years + 73 ordinary years.
Number of odd days in 97 years ( 24 x 2 + 73) = 121 = 2 odd days.
Jan. Feb. March April May June
(31 + 28 + 31 + 30 + 31 + 17) = 168 days
168 days = 24 weeks = 0 odd day.
Total number of odd days = (0 + 1 + 2 + 0) = 3.
Given day is Wednesday.
14. It was Sunday on Jan 1, 2006. What was the day of the week Jan 1, 2010?
Answer: Friday.
Explanation:
On 31st December, 2005 it was Saturday.
Number of odd days from the year 2006 to the year 2009 = (1 + 1 + 2 + 1) = 5 days.
On 31st December 2009, it was Thursday.
Thus, on 1st Jan, 2010 it is Friday.
15. What was the day of the week on 28th May, 2006?
Answer: Sunday
Explanation:
28 May, 2006 = (2005 years + Period from 1.1.2006 to 28.5.2006)
Odd days in 1600 years = 0
Odd days in 400 years = 0
5 years = (4 ordinary years + 1 leap year) = (4 x 1 + 1 x 2) = 6 odd days
Jan. Feb. March April May
(31 + 28 + 31 + 30 + 28 ) = 148 days
148 days = (21 weeks + 1 day) = 1 odd day.
Total number of odd days = (0 + 0 + 6 + 1) = 7 = 0 odd day.
Given day is Sunday.
CLOCK
| 1.At what time between 7 and 8 o'clock will the hands of a clock be in the same straight line but, not together? |
Answer: 5(5/11)min past 7 Explanation: When the hands of the clock are in the same straight line but not together, they are 30 minute spaces apart. At 7 o'clock, they are 25 min. spaces apart. Minute hand will have to gain only 5 min. spaces. 55 min. spaces are gained in 60 min. 5 min. spaces are gained in |
| 60 | x 5 | min | = 5 | 5 | min. | 55 | 11 |
Required time = 5 | 5 | min. past 7. | 11 |
|
2. At what time between 5.30 and 6 will the hands of a clock be at right angles?
Answer:
Required time = 43 | 7 | min. past 5. |
11 |
Explanation:
At 5 o'clock, the hands are 25 min. spaces apart.
To be at right angles and that too between 5.30 and 6, the minute hand has to gain (25 + 15) = 40 min. spaces.
55 min. spaces are gained in 60 min.
40 min. spaces are gained in |
| 60 | x 40 | min | = | 43 | 7 | min. |
55 | 11 |
Required time = 43 | 7 | min. past 5. |
11 |
3. The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:
Answer: 10º
Explanation:
Angle traced by hour hand in | 13 | hrs = |
| 360 | x | 13 |
| º | = 130º. |
3 | 12 | 3 |
Angle traced by min. hand in 20 min. = |
| 360 | x 20 |
| º | = 120º. |
60 |
Required angle = (130 - 120)º = 10º.
4. At what angle the hands of a clock are inclined at 15 minutes past 5?
Answer:
Explanation:
Angle traced by hour hand in | 21 | hrs = |
| 360 | x | 21 |
| º | = | 157 | 1 | º |
4 | 12 | 4 | 2 |
Angle traced by min. hand in 15 min. = |
| 360 | x 15 |
| º | = 90º. |
60 |
Required angle = |
| 157 | 1 |
| º | - 90º = 67 | 1 | º |
2 | 2 |
5. At 3.40, the hour hand and the minute hand of a clock form an angle of:
Answer: 130º.
Explanation:
Angle traced by hour hand in 12 hrs. = 360º.
Angle traced by it in | 11 | hrs = |
| 360 | x | 11 |
| º | = 110º. |
3 | 12 | 3 |
Angle traced by minute hand in 60 min. = 360º.
Angle traced by it in 40 min. = |
| 360 | x 40 |
| º | = 240º. |
60 |
Required angle (240 - 110)º = 130º.
6.How many times are the hands of a clock at right angle in a day?
Answer: 44times
Explanation:
In 12 hours, they are at right angles 22 times.
In 24 hours, they are at right angles 44 times.
7.The angle between the minute hand and the hour hand of a clock when the time is 8.30, is:
Answer: 75º.
Explanation:
Angle traced by hour hand in | 17 | hrs = |
| 360 | x | 17 |
| º | = 255. |
2 | 12 | 2 |
Angle traced by min. hand in 30 min. = |
| 360 | x 30 |
| º | = 180. |
60 |
Required angle = (255 - 180)º = 75º.
8. How many times in a day, are the hands of a clock in straight line but opposite in direction?
Answer: 22 times
Explanation:
The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).
So, in a day, the hands point in the opposite directions 22 times.
9. At what time between 4 and 5 o'clock will the hands of a watch point in opposite directions?
Answer: 54(6/11)min past4
Explanation:
At 4 o'clock, the hands of the watch are 20 min. spaces apart.
To be in opposite directions, they must be 30 min. spaces apart.
Minute hand will have to gain 50 min. spaces.
55 min. spaces are gained in 60 min.
50 min. spaces are gained in |
| 60 | x 50 | min. or 54 | 6 | min. |
55 | 11 |
Required time = 54 | 6 | min. past 4. |
10. At what time between 9 and 10 o'clock will the hands of a watch be together?
Answer: 49(1/11)min past 9
Explanation:
To be together between 9 and 10 o'clock, the minute hand has to gain 45 min. spaces.
55 min. spaces gained in 60 min.
45 min. spaces are gained in |
| 60 | x 45 | min or 49 | 1 | min. |
55 | 11 |
The hands are together at 49 | 1 | min. past 9. |
11 |
11.At what time, in minutes, between 3 o'clock and 4 o'clock, both the needles will coincide each other?
Answer: 16(4/11)min past 3
Explanation:
At 3 o'clock, the minute hand is 15 min. spaces apart from the hour hand.
To be coincident, it must gain 15 min. spaces.
55 min. are gained in 60 min.
15 min. are gained in |
| 60 | x 15 | min | = | 16 | 4 | min. |
55 | 11 |
The hands are coincident at 16 | 4 | min. past 3. |
11 |
12. How many times do the hands of a clock coincide in a day?
Answer: 22times
Explanation:
The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, they coincide only once, i.e., at 12 o'clock).
AM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
PM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
The hands overlap about every 65 minutes, not every 60 minutes.
The hands coincide 22 times in a day.
13. How many times in a day, the hands of a clock are straight?
Answer: 44times
Explanation:
In 12 hours, the hands coincide or are in opposite direction 22 times.
In 24 hours, the hands coincide or are in opposite direction 44 times a day.
14. A watch which gains uniformly is 2 minutes low at noon on Monday and is 4 min. 48 sec fast at 2 p.m. on the following Monday. When was it correct?
Answer: 2 p.m. on Wednesday.
Explanation:
Time from 12 p.m. on Monday to 2 p.m. on the following Monday = 7 days 2 hours = 170 hours.
The watch gains |
| 2 + 4 | 4 | min. | or | 34 | min. in 170 hrs. |
5 | 5 |
Now, | 34 | min. are gained in 170 hrs. |
5 |
2 min. are gained in |
| 170 x | 5 | x 2 | hrs | = 50 hrs. |
34 |
Watch is correct 2 days 2 hrs. after 12 p.m. on Monday i.e., it will be correct at 2 p.m. on Wednesday.
15.How much does a watch lose per day, if its hands coincide ever 64 minutes?
Answer: 32(8/11)min
Explanation:
55 min. spaces are covered in 60 min.
60 min. spaces are covered in |
| 60 | x 60 | min. | = 65 | 5 | min. |
55 | 11 |
Loss in 64 min. = |
| 65 | 5 | - 64 |
| = | 16 | min. |
11 | 11 |
Loss in 24 hrs = |
| 16 | x | 1 | x 24 x 60 | min. | = | 32 | 8 | min. |
11 | 64 | 11 |
16.The reflex angle between the hands of a clock at 10.25 is:
Answer:
Explanation:
Angle traced by hour hand in | 125 | hrs = |
| 360 | x | 125 |
| º | = 312 | 1 | º | . |
12 | 12 | 12 | 2 |
Angle traced by minute hand in 25 min = |
| 360 | x 25 |
| º | = 150º. |
60 |
Reflex angle = 360º - |
| 312 | 1 | - 150 |
| º | = 360º - 162 | 1 | º | = 197 | 1 | . |
2 | 2 | 2 |
17.An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?
Answer: 180º
Explanation:
Angle traced by the hour hand in 6 hours = |
| 360 | x 6 |
| º | = 180º. |
12 |
18.A watch which gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, when the watch indicated quarter past 4 o'clock, the true time is:
Answer: 4 p.m
Explanation:
Time from 7 a.m. to 4.15 p.m. = 9 hrs 15 min. = | 37 | hrs. |
4 |
3 min. 5 sec. of this clock = 3 min. of the correct clock.
| 37 | hrs of this clock = | 1 | hrs of the correct clock. |
720 | 20 |
| 37 | hrs of this clock = |
| 1 | x | 720 | x | 37 |
| hrs of the correct clock. |
4 | 20 | 37 | 4 |
= 9 hrs of the correct clock.
The correct time is 9 hrs after 7 a.m. i.e., 4 p.m.
19.A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:
Answer: 155º
Explanation:
Angle traced by hour hand in 12 hrs = 360º.
Angle traced by hour hand in 5 hrs 10 min. i.e., | 31 | hrs = |
| 360 | x | 31 |
| º | = 155º. |
6 | 12 | 6 |
GEOMETRY
1.What is the complementary angle of half the supplementary angle of 60º?
Answer: 30º
Explanation:
Supplementary angle of 60º = 180º – 60º
= 120º.
Half that angle = 120º/2
= 60º and
complementary angle of 60º = 90º – 60º
= 30º. [Answer]
2.Two sides of a triangle are 8 and 24. The third side is x. Which of the following
must be true?
Answer:b
Explanation:
Since the sum of any two sides is greater than the third side,
(8 + 24) > x
.
....
Or x < 32 .....................................................................................................(1) and
(x + 8) > 24 or x > 16.........................................................................................(2)
(1) and (2) => 16 < x < 32. [Answer (b)]
3. In the diagram given alongside, ADBE and ABC is isosceles with AB = AC. If AF is the altitude on BC and ∠DAC is 300., what is the measure of ∠BAF?

Answer: 60º
Explanation:
AD ..
BF and AC is the transversal and so,
.DAC= .ACB [alternate angles] .................................................................(1)
..ABC is isosceles with AB = AC => ACB = .ABC ................................ (2)
DAC=30º (given)..........................................................................................................(3)
(1), (2) and (3) => .ABC = .ACB = .DAC = 30º........................................(4)
AF is the altitude on BC => AFB = 90º ...........................................................(5)
In ..ABF, ABF + .AFB + .BAF = 180º ....................................................(6)
(4), (5) and (6) =>.BAF =180º – (30º + 90º) = 60º. [Answer]
4.When the midpoints of the four sides of any quadrilateral are joined together the
figure obtained MUST be a
(a) rectangle (b) square (c) parallelogram (d) trapezium (e) Cannot say
Answer:c
Explanation:
In ABD, E and H are midpoints of the
sides AB and BD and so by midpoint
theorem, EH .. AD…........…........ (1)and
EH =(½) AD…............................... (2)
Similarly, FG .. AD…..................… (3) and
FG = (½)AD…..…......................... (4)
(1) and (3) => EH .. FG......….... (5)
(2) and (4) => EH = FG......…......(6)
(5) and (6) => EHFG is a parallelogram. [Answer (c)]
5.In a polygon one interior angle is 162º and each of the other interior angles is
142º. How many sides does the polygon have?
Answer:10
Explanation:
Let the number of sides be n. Then, the total of all interior angles
= (n – 2) × 180º…............(1)
From the given conditions, the total of all interior angles
= 162º + (n – 1) × 142º....(2)
(1) and (2) => (n – 2) × 180º = 162º + (n – 1) × 142º or
38n = 380 or
n = 10. [Answer]
6.A chord of length 64 is at a distance of 24 from the centre of a circle. What
is the radius of the circle?
Answer:40
Explanation:
Applying the result r2 = (l/2)2 + d2,
r2 = 322 + 242 or
r = 40. [Answer]
7.AB is a chord of a circle O and C is any point on the circumference of the circle. If .ACB = 60º, what is the measure of OAB?
Answer: 30º
Explanation:
Since angle at the centre is double the angle at the
circumference and ACB = 60º, .AOB = 120º.
Now, AOB is isosceles since AO = BO, both being
radii. So, .OAB = .OBA.
But, .OAB + .OBA + .AOB = 180º.
So, .OAB = (½)(180 - 120) = 30º. [Answer]
8.A tangent from a point P touches a circle of radius 5 at point R. If O is the centre of the circle and OP is 13, what is the length of PR?

Answer:12
Explanation:
..OPR is right.
Hence, OP2 ............... = PR2 + OR2 or
PR2 .............................. = 132 – 52
PRO ...................... = 90º and hence
Since PR is tangent and OR is
...
radius,
= 144 or
PR .............................. = 12. [Answer]
9. In a rhombus, the lengths of the diagonals are 40 metres and 30 metres respectively. Find its area and perimeter.
(a) 600 and 100 (b) 1200 and 400 (c) 400 and 100 (d) 300 and 70
10. The area of a circle equals the area of a triangle of equal sides and also the area of a square. If the perimeters of the circle, the triangle and the square are c, t and s respectively then
(a) s > t > c (b) c > t > s (c) c > s > t (d) t > s > c
11. Two circles both of radius 8 touch externally. If P is a point on one circle and Q is a point on the other circle, then what is the maximum possible length for the line segment PQ?
(a) 7 (b) 14 (c) 32 (d) 28
12, In the figure given below, what is the value of y?

(a) 40 (b) 50 (c) 30 (d) 70
Answer:c
13. In a certain parallelogram the degree measure of one angle lower that of another angle by 60. What is the degree measure of the smaller angle?
(a) 30 (b) 75 (c) 60 (d) 70
Answer:c
14. In ΔABC, A is 2 units to the left of y-axis and 1 unit above x-axis, B is 2 units to the right of y-axis and 2 units below x-axis and C is 5 units to the right of y-axis and 2 unit above x-axis. Then, ΔABC is
(a) isosceles (b) equilateral (c) right angled (d) right angled isosceles
Answer:c
15. A circle has area which is 100 times the area of another circle. What is the ratio of their circumference?
(a) 1 : 10 (b) 10 : 1 (c) 1 : 5 (d) 5 : 1
Answer:b
16. If the height of a cone is increased by 21%, find the percentage decrease in its radius to make the volume constant.
(a) 90.9% (b) 9.09% (c) 8.09% (d) 11.2%
Answer:b
Explanation:
Volume of the cone = (1/3)Ï€r2h. If r1 and h1 are the changed radius and
height respectively,
constant volume => (1/3)Ï€r2h = (1/3)Ï€r1
2h1.
Given h1 = 1.21h, (1/3)p r2h
= (1/3)Ï€r1
2(1.21h) or
1.21r1
2 = r2 or
r1
2 = r2/1.21 or
r1 = r/1.1
= 0.9091
=> percentage reduction in radius = 100 ×(1 – 0.9091)
= 9.09%.
17. Two chords of a circle when produced beyond the circle intersect at E. If ∠E = 30º and ∠A = 25º, Find ∠CBA.
(a) 45º (b) 55º (c) 65º (d) 70º
Answer:b
Explanation:
In “ADE, ∠ADE = 180º – 25º – 30º = 125º.
ADE = 125º =>
ADC = 180º – 125º = 55º [adjacent angle]
ADC = 55º =>
CBA = 55 º [angles in the same segment].
Reasoning APTITUDE
ANALYTICAL REASONING
1.Find the number of triangles in the given figure.

Answer: 24
Explanation:
The figure may be labelled as shown.

The simplest triangles are IJO, BCJ, CDK, KQL, MLQ, GFM, GHN and NIO i.e. 8 in number.
The triangles composed of two components each are ABO, AHO, NIJ, IGP, ICP, DEQ, FEQ, KLM, LCP and LGP i.e.10 in number.
The triangles composed of four components each are HAB, DEF, LGI, GIC, ICL and GLG i.e. 6 in number.
Total number of triangles in the figure = 8 + 10 + 6 = 24.
2.Find the number of triangles in the given figure.

Answer: 18
Explanation:
The figure may be labelled as shown.

The simplest triangles are AHB, GHI, BJC, GFE, GIE, IJE, CEJ and CDE i.e. 8 in number.
The triangles composed of two components each are HEG, BEC, HBE, JGE and ICE i.e. 5 in number.
The triangles composed of three components each are FHE, GCE and BED i.e. 3 in number.
There is only one triangle i.e. AGC composed of four components.
There is only one triangle i.e. AFD composed of nine components.
Thus, there are 8 + 5 + 3 + 1 + 1 = 18 triangles in the given figure.
3.Find the number of triangles in the given figure.

Answer: 28
Explanation:
The figure may be labelled as shown.

The simplest triangles are AGH, GFO, LFO, DJK, EKP, PEL and IMN i.e. 7 in number.
The triangles having two components each are GFL, KEL, AMO, NDP, BHN, CMJ, NEJ and HFM i.e. 8 in number.
The triangles having three components each are IOE, IFP, BIF and CEI i.e. 4 in number.
The triangles having four components each are ANE and DMF i.e. 2 in number.
The triangles having five components each are FCK, BGE and ADL i.e. 3 in number.
The triangles having six components each are BPF, COE, DHF and AJE i.e. 4 in number.
Total number of triangles in the figure = 7 + 8 + 4 + 2 + 3 + 4 = 28.
4.Find the minimum number of straight lines required to make the given figure.

Answer: 17
Explanation:
The figure may be labelled as shown.

The horizontal lines are IK, AB, HG and DC i.e. 4 in number.
The vertical lines are AD, EH, JM, FG and BC i.e. 5 in number.
The slanting lines are IE, JE, JF, KF, DE, DH, FC and GC i.e. 8 is number.
Thus, there are 4 + 5 + 8 = 17 straight lines in the figure.
5.Find the number of triangles in the given figure.

Answer: 28
Explanation:
The figure may be labelled as shown.

The simplest triangles are AFJ, FJK, FKB, BKG, JKG, JGC, HJC, HIJ, DIH, DEI, EIJ and AEJ i.e. 12 in number.
The triangles composed of two components each are JFB, FBG, BJG, JFG, DEJ, EJH, DJH and DEH i.e. 8 in number.
The triangles composed of three components each are AJB, JBC, DJC and ADJ i.e. 4 in number.
The triangles composed of six components each are DAB, ABC, BCD and ADC i.e. 4 in number.
Thus, there are 12 + 8 + 4 + 4 = 28 triangles in the figure.
6.Find the number of triangles in the given figure.

Answer: 15
Explanation:
The figure may be labelled as shown.

The simplest triangles are AKI, AIL, EKD, LFB, DJC, BJC, DHC and BCG i.e. 8 in number.
The triangles composed of two components each are AKL, ADJ, AJB and DBC i.e. 4 in number.
The triangles composed of the three components each are ADC and ABC i.e. 2 in number.
There is only one triangle i.e. ADB composed of four components.
Thus, there are 8+ 4 + 2 + 1= 15 triangles in the figure.
7.Find the number of triangles in the given figure.

Answer: 15
Explanation:
The figure may be labelled as shown.

The simplest triangles are ABF, BIC, CIH, GIH, FGE and AFE i.e. 6 in number.
The triangles composed of two components each are ABE, AGE, BHF, BCH, CGH and BIE i.e. 6 in number.
The triangles composed of three components each are ABH, BCE and CDE i.e. 3 in number.
Hence, the total number of triangles in the figure = 6 + 6 + 3 = 15.
8.Find the number of triangles in the given figure.

Answer: 16
Explanation:
The figure may
be labelled as shown.
The simplest triangles are AGE, EGC, GFC, BGF, DGB and ADG i.e. 6 in number.
The triangles composed of two components each are AGO, BGC and ABG i.e. 3 in number.
The triangles composed of three components each are AFC, BEC, BDC, ABF, ABE and DAC i.e. 6 in number.
There is only one triangle i.e. ABC composed of six components.
Thus, there are 6 + 3 + 6 + 1 = 16 triangles in the given figure.
9. Find the number of triangles in the given figure.

Answer: 27
Explanation:
The figure may be labelled as shown.

The simplest triangles are ABL, BCD, DEF, FGP, PGH, QHI, JQI, KRJ and LRK i.e. 9 in number.
The triangles composed of two components each are OSG, SGQ, SPI, SRI, KSQ, KMS, FGH, JHI and JKL i.e. 9 in number.
There is only one triangle i.e. KSG which is composed of four components.
The triangles composed of five components each are NEI, ANI, MCG and KCO i.e. 4 in number.
The triangles composed of six components each are GMK and KOG i.e. 2 in number.
There is only one triangle i.e. AEI composed of ten components.
There is only one triangle i.e. KCG composed of eleven components.
Therefore, Total number of triangles in the given figure = 9 + 9+1 + 4 + 2+1 + 1 = 27.
10. Find the number of triangles in the given figure.

Answer: 21
Explanation:
The figure may be labelled as shown.

The simplest triangles are ABI, BIC, AIJ, GIJ, AHJ, CDJ, JHG, JDE, GJF and EJF i.e. 10 in number.
The triangles composed of two components each are ABC, BCJ, ACJ, BAJ, AJG, CJE and GJE i.e. 7 in number.
The triangles composed of four components each are ACG, ACE, CGE and AGE i.e. 4 in number.
Total number of triangles in the figure =10+ 7 + 4 = 21.
11. Find the number of triangles in the given figure.

Answer: 10
Explanation:
The figure may be labelled as shown.

The simplest triangles are AJF, FBG, GCH, HDI and IEJ i.e. 5 in number.
The triangles composed of three components each EBH, AIC, EFC, ADG and BJD i.e. 5 in number.
Thus, there are 5 + 5 = 10 triangles in the figure.
12. Find the minimum number of straight lines required to make the given figure.

Answer: 11
Explanation:
The figure may be labelled as shown.

The horizontal lines are DE, FH, IL and BC i.e. 4 in number.
The slanting lines are AC, DO, FN, IM, AB, EM and HN i.e. 7 in number.
Thus, there are 4 + 7 = 11 straight lines in the figure.
13. Find the number of triangles in the given figure.

Answer: 14
Explanation:
The figure may be labelled as shown.

The simplest triangles are ABJ, ACJ, BDH, DHF, CIE and GIE i.e. 6 in number.
The triangles composed of two components each are ABC, BDF, CEG, BHJ, JHK, JKI and CJI i.e. 7 in number.
There is only one triangle JHI which is composed of four components.
Thus, there are 6 + 7 + 1 = 14 triangles in the given figure.
14.Find the number of triangles in the given figure.

Answer: 29
Explanation:
The figure may be labelled as shown.

The simplest triangles are AHL, LHG, GHM, HMB, GMF, BMF, BIF, CIF, FNC, CNJ, FNE, NEJ, EKJ and JKD i.e. 14 in number.
The triangles composed of two components each are AGH, BHG, HBF, BFG, HFG, BCF, CJF, CJE, JEF, CFE and JED i.e. 11 in number.
The triangles composed of four components each are ABG, CBG, BCE and CED i.e. 4 in number.
Total number of triangles in the given figure = 14 + 11 + 4 = 29.
15.Find the number of triangles in the given figure.

Answer: 12
Explanation:
The figure may be labelled as shown.

The simplest triangles are AEH, EHI, EBF, EFI, FGC, IFG, DGH and HIG i.e. 8 in number.
The triangles composed of two components each are HEF, EFG, HFG and EFG i.e. 4 in number.
Thus, there are 8 + 4 = 12 triangles in the figure.
16. Find the number of triangles in the given figure.

Answer: 10
Explanation:
The figure may be labelled as shown.

The simplest triangles are ABG, BCG, CGE, CDE, AGE and AEF i.e. 6 in number.
The triangles composed of two components each are ABE, ABC, BCE and ACE i.e. 4 in number.
There are 6 + 4 = 10 triangles in the figure.
17.Find the number of triangles in the given figure.

Answer: 18
Explanation:
The figure may be labelled as shown.

The simplest triangles are BFG, CGH, EFM, FMG, GMN, GHN, HNI, LMK, MNK and KNJ i.e. 10 in number.
The triangles composed of three components each are FAK and HKD i.e. 2 in number.
The triangles composed of four components each are BEN, CMI, GLJ and FHK i.e. 4 in number.
The triangles composed of eight components each are BAJ and OLD i.e. 2 in number.
Thus, there are 10 + 2 + 4 + 2 = 18 triangles in the given figure.
18. Find the number of triangles in the given figure.

Answer: 28
Explanation:
The figure may be labelled as shown.

The simplest triangles are AEI, AIH, BEJ, BJF, CFK, CKG, DGL, DLH, EOJ, FOJ, FOG, LOG, HOL and HOE i.e. 14 in number.
The triangles composed of two components each are EAH, FBE, BEO, EOF, BFO, FCG, GDH, HOD, HOG and GOD i.e. 10 in number.
The triangles composed of three components each are EFH, EHG, FGH and EFG i.e. 4 in number.
Thus, there are 14 + 10 + 4 = 28 triangles in the given figure.
19. Find the number of triangles in the given figure.

Answer: 28
Explanation:
The figure may be labelled as shown.

The simplest triangles are ABG, BIG, BIC, CIH, GIH, CDH, HED, GHJ, HJE, FEJ, GFJ and AGF i.e. 12 in number.
The triangles composed of two components each are ABF, CDE, GBC, BCH, GHG, BHG, GHF, GHE, HEF and GEF i.e. 10 in number.
The triangles composed of three components each are ABH, AFH, CDG and GDE i.e. 4 in number.
The triangles composed of four components each are BHF and CGE i.e. 2 in number.
Total number of triangles in the figure = 12 + 10 + 4 + 2 = 28.
20.Find the number of triangles in the given figure.

Answer: 36
Explanation:
The figure may be labelled as shown.

The simplest triangles are AML, LRK, KWD, DWJ, JXI, IYC, CYH, HTG, GOB, BOF, FNE and EMA i.e. 12 in number.
The triangles composed of two components each are AEL, KDJ, HIC and FBG i.e. 4 in number.
The triangles composed of three components each are APF, EQB, BQH, GVC, CVJ, IUD, DUL and KPA i.e. 8 in number.
The triangles composed of six components each are ASB, BSG, CSD, DSA, AKF, EBH, GGJ and IDL i.e. 8 in number.
The triangles composed of twelve components each are ADB, ABC, BCD and CDA i.e. 4 in number.
Total number of triangles in the figure = 12 + 4 + 8 + 8 + 4 = 36.
21.Find the number of triangles in the given figure.

Answer: 27
Explanation:
The figure may be labelled as shown.

The simplest triangles are GLK, DLJ, DJM, HMN, QRE, IRA, IPA and FPO i.e. 8 in number.
The triangles having two components each are BDO, CDQ, DLM, PRA, KFI, NEI, HJI, GJI, DKI and DNI i.e. 10 in number.
The triangles having four components each are DIE, DFI, DOA, DQA andGHI i.e. 5 in number.
The triangles having six components each are DCA and DBA i.e. 2 in number.
DEF is the only triangle having eight components.
ABC is the only triangle having twelve components.
Thus, there are 8+10+ 5 + 2+1 + 1 = 27 triangles in the figure.
22. Find the number of triangles in the given figure.

Answer: 5
Explanation:
The figure may be labelled as shown.

The simplest triangles are ADE, BDF, DEF and EFC i.e. 4 in number.
There is only one triangle ABC composed of four components.
Thus, there are 4+1 = 5 triangles in the given figure.
23. Find the number of triangles in the given figure.

Answer: 21
Explanation:
The figure may be labelled as shown.

The simplest triangles are EFH, BIC, GHJ, GIJ, EKD and CKD i.e. 6 in number.
The triangles composed of two components each are ABJ, AFJ, GCK, GEK, CED arid GHI i.e. 6 in number.
The triangles composed of three components each are GCD, GED, DJB and DJF i.e. 4 in number.
The triangles composed of four components each are ABF and GCE i.e. 2 in number.
The triangles composed of five components each are ABD and AFD i.e. 2 in number.
There is only one triangle i.e. FBD composed of six components.
Total number of triangles in the figure = 6 + 6 + 4 + 2 + 2 + 1 = 21.
24. Find the minimum number of straight lines required to make the given figure.

Answer: 14
Explanation:
The figure may be labelled as shown.

The horizontal lines are AK, BJ, CI, DH and EG i.e. 5 in number.
The vertical lines are AE, LF and KG i.e. 3 in number.
The slanting lines are LC, CF, FI, LI, EK and AG i.e. 6 in number.
Thus, there are 5 + 3 + 6 = 14 straight lines in the figure.
25. What is the number of straight lines and the number of triangles in the given figure.

Answer: 9 straight lines and 36 triangles
Explanation:
The figure may be labelled as shown.

The Horizontal lines are DF and BC i.e. 2 in number.
The Vertical lines are DG, AH and FI i.e. 3 in number.
The Slanting lines are AB, AC, BF and DC i.e. 4 in number.
Thus, there are 2 + 3 + 4 = 9 straight lines in the figure.
Now, we shall count the number of triangles in the figure.
The simplest triangles are ADE, AEF, DEK, EFK, DJK, FLK, DJB, FLC, BJG and LIC i.e. 10 in number.
The triangles composed of two components each are ADF, AFK, DFK, ADK, DKB, FCK, BKH, KHC, DGB and FIC i.e. 10 in number.
The triangles composed of three components each are DFJ and DFL i.e. 2 in number.
The triangles composed of four components each are ABK, ACK, BFI, CDG, DFB, DFC and BKC i.e. 7 in number.
The triangles composed of six components each are ABH, ACH, ABF, ACD, BFC and CDB i.e. 6 in number.
There is only one triangle i.e. ABC composed of twelve components.
There are 10 + 10 + 2 + 7 + 6+ 1 = 36 triangles in the figure.
26. What is the number of triangles that can be formed whose vertices are the vertices of an octagon but have only one side common with that of octagon?
Answer: 32
Explanation:

When the triangles are drawn in an octagon with vertices same as those of the octagon and having one side common to that of the octagon, the figure will appear as shown in (Fig. 1).

Now, we shall first consider the triangles having only one side AB common with octagon ABCDEFGH and having vertices common with the octagon (See Fig. 2).Such triangles are ABD, ABE, ABF and ABG i.e. 4 in number.

Similarly, the triangles having only one side BC common with the octagon and also having vertices common with the octagon are BCE, BCF, BCG and BCH (as shown in Fig. 3). i.e. There are 4 such triangles.
This way, we have 4 triangles for each side of the octagon. Thus, there are 8 x 4 = 32 such triangles.
PIPES AND CISTERN
1.How long will it take to empty the tank if both the inlet pipe A and the outlet pipe B are opened simultaneously? |
I. | A can fill the tank in 16 minutes. |
II. | B can empty the full tank in 8 minutes. |
A. | I alone sufficient while II alone not sufficient to answer |
B. | II alone sufficient while I alone not sufficient to answer |
C. | Either I or II alone sufficient to answer |
D. | Both I and II are not sufficient to answer |
E. | Both I and II are necessary to answer |
Answer & Explanation
Answer: Option E
Explanation:
I. A's 1 minute's filling work = | 1 |
16 |
II. B's 1 minute's filling work = | 1 |
8 |
(A + B)'s 1 minute's emptying work = |
| 1 | - | 1 |
| = | 1 |
8 | 16 | 16 |
Tank will be emptied in 16 minutes.
Thus, both I and II are necessary to answer the question.
Correct answer is (E).
2.If both the pipes are opened, how many hours will be taken to fill the tank? |
I. | The capacity of the tank is 400 litres. |
II. | The pipe A fills the tank in 4 hours. |
III. | The pipe B fills the tank in 6 hours. |
A. | Only I and II |
B. | Only II and III |
C. | All I, II and III |
D. | Any two of the three |
E. | Even with all the three statements, answer cannot be given. |
Answer & Explanation
Answer: Option B
Explanation:
II. Part of the tank filled by A in 1 hour = | 1 |
4 |
III. Part of the tank filled by B in 1 hour = | 1 |
6 |
(A + B)'s 1 hour's work = |
| 1 | + | 1 |
| = | 5 |
4 | 6 | 12 |
A and B will fill the tank in | 12 | hrs = 2 hrs 24 min. |
5 |
So, II and III are needed.
Correct answer is (B).
3.How much time will the leak take to empty the full cistern? |
I. | The cistern is normally filled in 9 hours. |
II. | It takes one hour more than the usual time to fill the cistern because of la leak in the bottom. |
A. | I alone sufficient while II alone not sufficient to answer |
B. | II alone sufficient while I alone not sufficient to answer |
C. | Either I or II alone sufficient to answer |
D. | Both I and II are not sufficient to answer |
E. | Both I and II are necessary to answer |
Answer & Explanation
Answer: Option E
Explanation:
I. Time taken to fill the cistern without leak = 9 hours.
Part of cistern filled without leak in 1 hour = | 1 |
9 |
II. Time taken to fill the cistern in presence of leak = 10 hours.
Net filling in 1 hour = | 1 |
10 |
Work done by leak in 1 hour = |
| 1 | - | 1 |
| = | 1 |
9 | 10 | 90 |
Leak will empty the full cistern in 90 hours.
Clearly, both I and II are necessary to answer the question.
Correct answer is (E).
LOGICAL PROBLEMS
1.The Kingston Mall has more stores than the Galleria.
The Four Corners Mall has fewer stores than the Galleria.
The Kingston Mall has more stores than the Four Corners Mall.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
From the first two statements, you know that the Kingston Mall has the most stores, so the Kingston Mall would have more stores than the Four Corners Mall.
2. All the tulips in Zoe's garden are white.
All the pansies in Zoe's garden are yellow.
All the flowers in Zoe's garden are either white or yellow
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
The first two statements give information about Zoe's tulips and pansies. Information about any other kinds of flowers cannot be determined.
3. During the past year, Josh saw more movies than Stephen.
Stephen saw fewer movies than Darren.
Darren saw more movies than Josh.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
Because the first two sentences are true, both Josh and Darren saw more movies than Stephen. However, it is uncertain as to whether Darren saw more movies than Josh.
4. Rover weighs less than Fido.
Rover weighs more than Boomer.
Of the three dogs, Boomer weighs the least.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
According to the first two statements, Fido weighs the most and Boomer weighs the least.
5. All the offices on the 9th floor have wall-to-wall carpeting.
No wall-to-wall carpeting is pink.
None of the offices on the 9th floor has pink wall-to-wall carpeting.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
If no wall-to-wall carpeting is pink and all the offices have wall-to-wall carpeting, none of the offices has pink wall-to-wall carpeting.
6.Class A has a higher enrollment than Class B.
Class C has a lower enrollment than Class B.
Class A has a lower enrollment than Class C.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option B
Explanation:
From the first two statements, we know that of the three classes, Class A has the highest enrollment, so the third statement must be false.
7.A fruit basket contains more apples than lemons.
There are more lemons in the basket than there are oranges.
The basket contains more apples than oranges.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
There are fewer oranges than either apples or lemons, so the statement is true.
Easy method: (Try this method to solve without any confusion)
1. A fruit basket contains more apples than lemons = App > Lem
2. There are more lemons in the basket than there are oranges = Lem > Org
Now, Combine the above two results: App > Lem > Org
3. The basket contains more apples than oranges (App > ... > Org) = Yes.
Therefore, the given 3rd statement is true.
8. The Shop and Save Grocery is south of Greenwood Pharmacy.
Rebecca's house is northeast of Greenwood Pharmacy.
Rebecca's house is west of the Shop and Save Grocery.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option B
Explanation:
Because the first two statements are true, Rebecca's house is also northeast of the Shop and Save Grocery, which means that the third statement is false.
9. Joe is younger than Kathy.
Mark was born after Joe.
Kathy is older than Mark.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
Joe is younger than Kathy and older than Mark, so Mark must be younger than Kathy.
10. On the day the Barton triplets are born,
Jenna weighs more than Jason.
Jason weighs less than Jasmine.
Of the three babies, Jasmine weighs the most.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
We only know that Jasmine weighs more than Jason. There is no way to tell whether Jasmine also weighs more than Jenna.
11. The temperature on Monday was lower than on Tuesday.
The temperature on Wednesday was lower than on Tuesday.
The temperature on Monday was higher than on Wednesday
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
We know from the first two statements that Tuesday had the highest temperature, but we cannot know whether Monday's temperature was higher than Tuesday's
12.Oat cereal has more fiber than corn cereal but less fiber than bran cereal.
Corn cereal has more fiber than rice cereal but less fiber than wheat cereal.
Of the three kinds of cereal, rice cereal has the least amount of fiber.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
From the first statement, we know that bran cereal has more fiber than both oat cereal and corn cereal. From the second statement, we know that rice cereal has less fiber than both corn and wheat cereals. Therefore, rice cereal has the least amount of fiber.
13. Martina is sitting in the desk behind Jerome.
Jerome is sitting in the desk behind Bryant.
Bryant is sitting in the desk behind Martina.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option B
Explanation:
Given the information in the first two statements, Bryant is sitting in front of both Jerome and Martina, so the third statement must be false.
14. Battery X lasts longer than Battery Y.
Battery Y doesn't last as long as Battery Z.
Battery Z lasts longer than Battery X.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
The first two statements indicate that Battery Y lasts the least amount of time, but it cannot be determined if Battery Z lasts longer than Battery X.
15.Middletown is north of Centerville.
Centerville is east of Penfield.
Penfield is northwest of Middletown.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option B
Explanation:
Because the first two statements are true, Penfield is west of Centerville and southwest of Middletown. Therefore, the third statement is false.
16.All spotted Gangles have long tails.
Short-haired Gangles always have short tails.
Long-tailed Gangles never have short hair.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
We know only that long-tailed Gangles have spots. We cannot know for certain if long-tailed Gangles also have short hair.
|
17.All Lamels are Signots with buttons. No yellow Signots have buttons. No Lamels are yellow. If the first two statements are true, the third statement is |
Answer & Explanation Answer: Option A Explanation: We know that there are Signots with buttons, or Lamels, and that there are yellow Signots, which have no buttons. Therefore, Lamels do not have buttons and cannot be yellow.
|
18. The hotel is two blocks east of the drugstore.
The market is one block west of the hotel.
The drugstore is west of the market.
If the first two statements are true, the third statement is
Answer: Option A
Explanation:
The market is one block west of the hotel. The drugstore is two blocks west of the hotel, so the drugstore is west of the market.
19. A toothpick is useful.
Useful things are valuable.
A toothpick is valuable.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
To the extent that a toothpick is useful, it has value.
20. Tom puts on his socks before he puts on his shoes.
He puts on his shirt before he puts on his jacket.
Tom puts on his shoes before he puts on his shirt.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
There is not enough information to verify the third statement.
21. Three pencils cost the same as two erasers.
Four erasers cost the same as one ruler.
Pencils are more expensive than rulers.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option B
Explanation:
Rulers are the most expensive item.
22.Taking the train across town is quicker than taking the bus.
Taking the bus across town is slower than driving a car.
Taking the train across town is quicker than driving a car.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
Both the car and the train are quicker than the bus, but there is no way to make a comparison between the train and the car.
23.Cloudy days tend to be more windy than sunny days.
Foggy days tend to be less windy than cloudy days.
Sunny days tend to be less windy than foggy days.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option C
Explanation:
Cloudy days are the most windy, but there is not enough information to compare the wind on the foggy days with the wind on the sunny days.
24. At a parking lot, a sedan is parked to the right of a pickup and to the left of a sport utility vehicle.
A minivan is parked to the left of the pickup.
The minivan is parked between the pickup and the sedan.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option B
Explanation:
This is the order of the cars from left to right: minivan, pickup, sedan, sport utility vehicle.
25. The bookstore has a better selection of postcards than the newsstand does.
The selection of postcards at the drugstore is better than at the bookstore.
The drugstore has a better selection of postcards than the bookstore or the newsstand.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option A
Explanation:
Of the three, the drugstore has the best selection of postcards.
26. A jar of jelly beans contains more red beans than green.
There are more yellow beans than red.
The jar contains fewer yellow jelly beans than green ones.
If the first two statements are true, the third statement is
Answer & Explanation
Answer: Option B
Explanation:
The first two statements indicate there are more yellow jelly beans than red and green.
II. The logic problems in this set present you with three true statements: Fact 1, Fact 2, and Fact 3. Then, you are given three more statements (labeled I, II, and III), and you must determine which of these, if any, is also a fact. One or two of the statements could be true; all of the statements could be true; or none of the statements could be true. Choose your answer based solely on the information given in the first three facts.
1. Fact 1:Eyeglass frames cost between $35 and $350.
Fact 2:Some eyeglass frames are made of titanium.
Fact 3:Some eyeglass frames are made of plastic.
If the first three statements are facts, which of the following statements must also be a fact?
I:Titanium eyeglass frames cost more than plastic frames.
II:Expensive eyeglass frames last longer than cheap frames.
III:Only a few eyeglass frames cost less than $35.
A.I only
B. II only
C. II and III only
D. None of the statements is a known fact.
Answer & Explanation
Answer: Option D
Explanation:
There is no information in the facts to support statements I or II. Statement III is clearly wrong because, according to Fact 1, no frames cost less than $35.
2. Fact 1:Most stuffed toys are stuffed with beans. Fact 2:There are stuffed bears and stuffed tigers. Fact 3:Some chairs are stuffed with beans. |
If the first three statements are facts, which of the following statements must also be a fact?
I:Only children's chairs are stuffed with beans. II:All stuffed tigers are stuffed with beans. III:Stuffed monkeys are not stuffed with beans. |
A.I only B.II only C.II and III only D.None of the statements is a known fact. |
Answer & Explanation
Answer: Option D
Explanation:
None of the three statements is supported by the known facts.
3. Fact 1:Mary said, "Ann and I both have cats." Fact 2:Ann said, "I don't have a cat." Fact 3:Mary always tells the truth, but Ann sometimes lies. |
If the first three statements are facts, which of the following statements must also be a fact?
I:Ann has a cat. II:Mary has a cat. III:Ann is lying. |
A.I only B.II only C.I and II only D.All the statements are facts. |
Answer & Explanation
Answer: Option D
Explanation:
If Mary always tells the truth, then both Ann and Mary have cats (statements I and II), and Ann is lying (statement III). So all the statements are facts.
4. Fact 1:Pictures can tell a story. Fact 2:All storybooks have pictures. Fact 3:Some storybooks have words. |
If the first three statements are facts, which of the following statements must also be a fact?
I:Pictures can tell a story better than words can. II:The stories in storybooks are very simple. III:Some storybooks have both words and pictures. |
A.I only B.II only C.III only D.None of the statements is a known fact. |
Answer & Explanation
Answer: Option C
Explanation:
Statements I and II are not supported by the facts. Statement III is true because if all story-books have pictures and only some have words, then some storybooks have both words and pictures.
5. Fact 1:Some pens don't write. Fact 2:All blue pens write. Fact 3:Some writing utensils are pens. |
If the first three statements are facts, which of the following statements must also be a fact?
I:Some writing utensils don't write. II:Some writing utensils are blue. III:Some blue writing utensils don't write. |
A.I only B.I and II only C.II and III only D.None of the statements is a known fact. |
Answer & Explanation
Answer: Option B
Explanation:
Since some pens don't write, some writing utensils don't write (statement I). Since there are blue pens and since pens are writing utensils, some writing utensils are blue (statement II). There is not enough information to support statement III.
6.Fact 1:Islands are surrounded by water. Fact 2:Maui is an island. Fact 3:Maui was formed by a volcano. |
If the first three statements are facts, which of the following statements must also be a fact?
I:Maui is surrounded by water. II:All islands are formed by volcanoes. III:All volcanoes are on islands. |
A.I only B.II only C.II and III only D.None of the statements is a known fact. |
Answer & Explanation
Answer: Option A
Explanation:
Since Maui is an island and islands are surrounded by water,Maui must be surrounded by water. There is not enough information to support statements II and III.
7. Fact 1:Robert has four vehicles. Fact 2:Two of the vehicles are red. Fact 3:One of the vehicles is a minivan. |
If the first three statements are facts, which of the following statements must also be a fact?
I:Robert has a red minivan. II:Robert has three cars. III:Robert's favorite color is red. |
A.I only B.II only C.II and III only D.None of the statements is a known fact. |
Answer & Explanation
Answer: Option D
Explanation:
There is not enough information to support any of the statements. Robert is known to have a minvan, but it is not known which of his vehicles is red. Robert may have a pickup or sport utility vehicle, so the second statement cannot be supported. There is no way to know if Robert's favorite color is red (statement III).
8. Fact 1:All hats have brims.
Fact 2: There are black hats and blue hats.
Fact 3: Baseball caps are hats.
If the first three statements are facts, which of the following statements must also be a fact?
I:All caps have brims. II:Some baseball caps are blue. III:Baseball caps have no brims. |
A.I only B.II only C.II and III only D.None of the statements is a known fact. |
Answer & Explanation
Answer: Option D
Explanation:
All baseball caps have brims, since baseball caps are hats (Fact 3) and all hats have brims (Fact 1). This rules out statement III, but it doesn't follow that all caps, a category that may include caps that are not baseball caps, have brims (statement I). Statement II cannot be confirmed, either, since it is possible, given the information, that all baseball caps are black.
Read the question carefully and choose the correct answer.
1. At the baseball game, Henry was sitting in seat 253. Marla was sitting to the right of Henry in seat 254. In the seat to the left of Henry was George. Inez was sitting to the left of George. Which seat is Inez sitting in?
Answer & Explanation
Answer: Option A
Explanation:
If George is sitting at Henry's left, George's seat is 252. The next seat to the left, then, is 251.
2. As they prepare for the state championships, one gymnast must be moved from the Level 2 team to the Level 1 team. The coaches will move the gymnast who has won the biggest prize and who has the most experience. In the last competition, Roberta won a bronze medal and has competed seven times before. Jamie has won a silver medal and has competed fewer times than Roberta. Beth has won a higher medal than Jamie and has competed more times than Roberta. Michele has won a bronze medal, and it is her third time competing. Who will be moved to the Level 1 team?
Answer & Explanation
Answer: Option B
Explanation:
Beth won the biggest prize, described as a higher medal than Jamie's, which we've been told was a silver medal. Roberta and Michele both won bronze medals, which are lower ranking medals than silver. Beth is also described as having competed more times than Roberta who has competed seven times. Jamie is described as having competed fewer times than Roberta, and Michele has competed three times. Therefore, Beth has competed more times than the others and has won the biggest prize to date.
3. Four friends in the sixth grade were sharing a pizza. They decided that the oldest friend would get the extra piece. Randy is two months older than Greg, who is three months younger than Ned. Kent is one month older than Greg. Who should get the extra piece of pizza?
Answer & Explanation
Answer: Option C
Explanation:
If Randy is two months older than Greg, then Ned is three months older than Greg and one month older than Randy. Kent is younger than both Randy and Ned. Ned is the oldest.
4. The high school math department needs to appoint a new chairperson, which will be based on seniority. Ms. West has less seniority than Mr. Temple, but more than Ms. Brody. Mr. Rhodes has more seniority than Ms. West, but less than Mr. Temple. Mr. Temple doesn't want the job. Who will be the new math department chairperson?
A. | Mr. Rhodes |
B. | Mr. Temple |
C. | Ms.West |
D. | Ms. Brody |
Answer & Explanation
Answer: Option A
Explanation:
Mr. Temple has the most seniority, but he does not want the job. Next in line is Mr. Rhodes, who has more seniority than Ms. West or Ms. Brody.
5. Danielle has been visiting friends in Ridge-wood for the past two weeks. She is leaving tomorrow morning and her flight is very early. Most of her friends live fairly close to the airport. Madison lives ten miles away. Frances lives five miles away, Samantha, seven miles. Alexis is farther away than Frances, but closer than Samantha. Approximately how far away from the airport is Alexis?
A. | nine miles |
B. | seven miles |
C. | eight miles |
D. | six miles |
Answer & Explanation
Answer: Option D
Explanation:
Alexis is farther away than Frances, who is five miles away, and closer than Samantha, who is seven miles away.
6. Nurse Kemp has worked more night shifts in a row than Nurse Rogers, who has worked five. Nurse Miller has worked fifteen night shifts in a row, more than Nurses Kemp and Rogers combined. Nurse Calvin has worked eight night shifts in a row, less than Nurse Kemp. How many night shifts in a row has Nurse Kemp worked?
Answer & Explanation
Answer: Option B
Explanation:
Nurse Kemp has worked more shifts in a row than Nurse Calvin; therefore, Kemp has worked more than eight shifts. The number of Kemp's shifts plus the number of Rogers's shifts (five) cannot equal fifteen or more, the number of Miller's shifts. Therefore, Kemp has worked nine shifts in a row (5 + 9 = 14).
7. Children are in pursuit of a dog whose leash has broken. James is directly behind the dog. Ruby is behind James. Rachel is behind Ruby. Max is ahead of the dog walking down the street in the opposite direction. As the children and dog pass, Max turns around and joins the pursuit. He runs in behind Ruby. James runs faster and is alongside the dog on the left. Ruby runs faster and is alongside the dog on the right. Which child is directly behind the dog?
Answer & Explanation
Answer: Option D
Explanation:
After all the switches were made,Max is directly behind the dog, James is alongside the dog on the left, Ruby is alongside the dog on the right, and Rachel is behind Max.
8. Ms. Forest likes to let her students choose who their partners will be; however, no pair of students may work together more than seven class periods in a row. Adam and Baxter have studied together seven class periods in a row. Carter and Dennis have worked together three class periods in a row. Carter does not want to work with Adam. Who should be assigned to work with Baxter?
Answer & Explanation
Answer: Option A
Explanation:
Baxter should be assigned to study with Carter. Baxter cannot be assigned with Adam, because they have already been together for seven class periods. If Baxter is assigned to work with Dennis, that would leave Adam with Carter, but Carter does not want to work with Adam.
9. Four defensive football players are chasing the opposing wide receiver, who has the ball. Calvin is directly behind the ball carrier. Jenkins and Burton are side by side behind Calvin. Zeller is behind Jenkins and Burton. Calvin tries for the tackle but misses and falls. Burton trips. Which defensive player tackles the receiver?
Answer & Explanation
Answer: Option C
Explanation:
After all the switching was done, Jenkins was directly behind the receiver. Calvin and Burton had fallen. Zeller remained in the rear.
10.In a four-day period Monday through Thursday each of the following temporary office workers worked only one day, each a different day. Ms. Johnson was scheduled to work on Monday, but she traded with Mr. Carter, who was originally scheduled to work on Wednesday. Ms. Falk traded with Mr. Kirk, who was originally scheduled to work on Thursday. After all the switching was done, who worked on Tuesday?
A. | Mr. Carter |
B. | Ms. Falk |
C. | Ms. Johnson |
D. | Mr. Kirk |
Answer & Explanation
Answer: Option D
Explanation:
After all the switches were made, Mr. Kirk worked on Tuesday. Mr. Carter worked on Monday,Ms. Johnson on Wednesday, and Ms. Falk on Thursday.
LOGICAL GAMES
Read the below passage carefully and answer the questions:
I. The government of an island nation is in the process of deciding how to spend its limited income. It has $7 million left in its budget and eight programs to choose among. There is no provision in the constitution to have a surplus, and each program has requested the minimum amount they need; in other words, no program may be partially funded. The programs and their funding requests are:
* Hurricane preparedness: $2.5 million
* Harbor improvements: $1 million
* School music program: $0.5 million
* Senate office building remodeling: $1.5 million
* Agricultural subsidy program: $2 million
* National radio: $0.5 million
* Small business loan program: $3 million
* International airport: $4 million
1. Senators from urban areas are very concerned about assuring that there will be funding for a new international airport. Senators from rural areas refuse to fund anything until money for agricultural subsidies is appropriated. If the legislature funds these two programs, on which of the following could they spend the rest of the money?
A. | the school music program and national radio |
B. | hurricane preparedness |
C. | harbor improvements and the school music program |
D. | small business loan program |
E. | national radio and senate office building remodeling |
Answer & Explanation
Answer: Option A
Explanation:
The total cost of the school music program and national radio is $1 million, the amount left after the international airport and agricultural subsidies are funded.
International airport + Agricultural subsidy program
$4 million + $2 million = $6 million
school music program and national radio is $1 million.
Hence, Total $7 million.
2. If the legislature decides to fund the agricultural subsidy program, national radio, and the small business loan program, what two other programs could they fund?
A. | harbor improvements and international airport |
B. | harbor improvements and school music program |
C. | hurricane preparedness and school music program |
D. | hurricane preparedness and international airport |
E. | harbor improvements and hurricane preparedness |
Answer & Explanation
Answer: Option B
Explanation:
The only two programs that total 1.5 million dollars are the harbor improvements and school music program.
3. If the legislature decides to fund the agricultural subsidy program, national radio, and the small business loan program, the only other single program that can be funded is
A. | hurricane preparedness. |
B. | harbor improvements. |
C. | school music program. |
D. | senate office building remodeling. |
E. | international airport. |
Answer & Explanation
Answer: Option D
Explanation:
The total of the three programs (2 million + 0.5 million + 3 million) is 5.5 million. That leaves 1.5 million (7 million - 5.5 million), and the only single program needing that amount is the senate office building remodeling.
II. At a small company, parking spaces are reserved for the top executives: CEO, president, vice president, secretary, and treasurer with the spaces lined up in that order. The parking lot guard can tell at a glance if the cars are parked correctly by looking at the color of the cars. The cars are yellow, green, purple, red, and blue, and the executives names are Alice, Bert, Cheryl, David, and Enid.
* The car in the first space is red.
* A blue car is parked between the red car and the green car.
* The car in the last space is purple.
* The secretary drives a yellow car.
* Alice's car is parked next to David's.
* Enid drives a green car.
* Bert's car is parked between Cheryl's and Enid's.
* David's car is parked in the last space.
1. Who is the secretary?
Answer & Explanation
Answer: Option E
Explanation:
Cheryl cannot be the secretary, since she's the CEO, nor can Enid, because she drives a green car, and the secretary drives a yellow car. David's, the purple car, is in the last space. Alice is the secretary, because her car is parked next to David's, which is where the secretary's car is parked.
2. Who is the CEO ?
Answer & Explanation
Answer: Option C
Explanation:
The CEO drives a red car and parks in the first space. Enid drives a green car; Bert's car is not in the first space; David's is not in the first space, but the last. Alice's car is parked next to David's, so Cheryl is the CEO.
3. What color is the vice president's car?
Answer & Explanation
Answer: Option A
Explanation:
The vice president's car cannot be red, because that is the CEO's car, which is in the first space. Nor can it be purple, because that is the treasurer's car, which is in the last space, or yellow, because that is the secretary's. The president's car must be blue, because it is parked between a red car (in the first space) and a green car, which must be the vice president's.
III. Five cities all got more rain than usual this year. The five cities are: Last Stand, Mile City, New Town, Olliopolis, and Polberg. The cities are located in five different areas of the country: the mountains, the forest, the coast, the desert, and in a valley. The rainfall amounts were: 12 inches, 27 inches, 32 inches, 44 inches, and 65 inches.
* The city in the desert got the least rain; the city in the forest got the most rain.
* New Town is in the mountains.
* Last Stand got more rain than Olliopolis.
* Mile City got more rain than Polberg, but less rain than New Town.
* Olliopolis got 44 inches of rain.
* The city in the mountains got 32 inches of rain; the city on the coast got 27 inches of rain.
1. Which city got the most rain?
A. | Last Stand |
B. | Mile City |
C. | New Town |
D. | Olliopolis |
E. | Polberg |
Answer & Explanation
Answer: Option A
Explanation:
Olliopolis got 44 inches of rain. Last Stand got more rain than that, so it got 65 inches, which is the most.
2. How much rain did Mile City get?
A. | 12 inches |
B. | 27 inches |
C. | 32 inches |
D. | 44 inches |
E. | 65 inches |
Answer & Explanation
Answer: Option B
Explanation:
Olliopolis got 44 inches of rain, Last Stand got 65, and Polberg got 12. New Town is in the mountains, and the city in the mountains got 32 inches of rain. Therefore, Mile City got 27.
3. Which city is in the desert ?
A. | Last Stand |
B. | Mile City |
C. | New Town |
D. | Olliopolis |
E. | Polberg |
Answer & Explanation
Answer: Option E
Explanation:
The city that got the least rain is in the desert. New Town is in the mountains. Last Stand got more rain than Olliopolis, so it cannot be the city with the least rain; also,Mile City cannot be the city with the least rain. Olliopolis got 44 inches of rain. Therefore, Polberg is in the desert and got 12 inches of rain.
4. Where is Olliopolis located?
A. | the mountains |
B. | the coast |
C. | in a valley |
D. | the desert |
E. | the forest |
Answer & Explanation
Answer: Option C
Explanation:
Olliopolis got 44 inches of rain, so it is not in the desert or the forest. The city in the mountains got 32 inches of rain; the coast 27. Therefore, Olliopolis is in a valley
IV.Five roommates Randy, Sally, Terry, Uma, and Vernon each do one housekeeping task mopping, sweeping, laundry, vacuuming, or dusting one day a week, Monday through Friday.
* Vernon does not vacuum and does not do his task on Tuesday.
* Sally does the dusting, and does not do it on Monday or Friday.
* The mopping is done on Thursday.
* Terry does his task, which is not vacuuming, on Wednesday.
* The laundry is done on Friday, and not by Uma.
* Randy does his task on Monday.
1. What task does Terry do on Wednesday?
Answer & Explanation
Answer: Option D
Explanation:
Terry does not dust, mop, do laundry, or vacuum. Therefore, Terry does the sweeping on Wednesday.
2. What day does Uma do her task?
Answer & Explanation
Answer: Option D
Explanation:
Uma does the mopping, which is done on Thursday.
3. What task does Vernon do?
Answer & Explanation
Answer: Option E
Explanation:
Vernon does not vacuum, dust, or sweep. Randy does the vacuuming, Sally does the dusting, Terry does the sweeping—leaving laundry and mopping for Uma and Vernon. Uma does not do laundry; therefore, she must mop, and Vernon does the laundry.
4. What day is the vacuuming done?
Answer & Explanation
Answer: Option B
Explanation:
Dusting is on Tuesday, sweeping is on Wednesday, mopping is on Thursday, and laundry is on Friday. Therefore, the vacuuming is done on Monday.
5. When does Sally do the dusting?
Answer & Explanation
Answer: Option C
Explanation:
Dusting must be done on Tuesday, Wednesday, or Thursday. However, the mopping is done on Thursday, and Terry does his task on Wednesday. Therefore, Sally does the dusting on Tuesday.
LOGICAL DEDUCTION
1.Statements: All bags are cakes. All lamps are cakes.
Conclusions:
Some lamps are bags.
No lamp is bag.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option C
Explanation:
Since the middle term 'cakes' is not distributed even once in the premises, no definite conclusion follows. However, I and II involve only the extreme terms and form a complementary pair. So, either I or II follows.
2.Statements: All mangoes are golden in colour. No golden-coloured things are cheap.
Conclusions:
All mangoes are cheap.
Golden-coloured mangoes are not cheap.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option B
Explanation:
Clearly, the conclusion must be universal negative and should not contain the middle term. So, it follows that 'No mango is cheap'. Since all mangoes are golden in colour, we may substitute 'mangoes' with 'golden-coloured mangoes'. Thus, II follows.
3.Statements: Some kings are queens. All queens are beautiful.
Conclusions:
All kings are beautiful.
All queens are kings.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
Since one premise is particular, the conclusion must be particular. So, neither I nor II follows.
4.Statements: Some doctors are fools. Some fools are rich.
Conclusions:
Some doctors are rich
Some rich are doctors.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
Since both the premises are particular, no definite conclusion follows.
5.Statements: All roads are waters. Some waters are boats.
Conclusions:
Some boats are roads.
All waters are boats.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
The first premise is A type and distributes the subject. So, the middle term 'waters' which forms its predicate, is not distributed. The second premise is I type and does not distribute either subject or predicate. So, the middle term 'waters' forming its subject is not distributed. Since the middle term is not distributed even once in the premises, no definite conclusion follows.
6. Statements: No bat is ball. No ball is wicket.
Conclusions:
No bat is wicket.
All wickets are bats.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
Since both the premises are negative, no definite conclusion follows.
7. Statements: All flowers are trees. No fruit is tree.
Conclusions:
No fruit is flower.
Some trees are flowers.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option E
Explanation:
As discussed above, the conclusion must be universal negative and should not contain the middle term. So, it follows that 'No flower is fruit'. I is the converse of this conclusion and thus it follows. II is the converse of the first premise and so it also holds.
8.Statements: Some adults are boys. Some boys are old.
Conclusions:
Some adults are not old.
Some boys are not old.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
Both the premises are I-type propositions and as such, the middle term 'boys' is not distributed even once in the premises. So, no definite conclusion follows.
9. Statements: Every minister is a student. Every student is inexperienced.
Conclusions:
Every minister is inexperienced.
Some inexperienced are students.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option E
Explanation:
'Every' is equivalent to 'All'. Thus, since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, I follows. II is the converse of the second premise and thus it also holds.
10.Statements: All roads are poles. No pole is a house.
Conclusions:
Some roads are houses.
Some houses are poles.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
Since both the premises are universal and one premise is negative, the conclusion must be universal negative. So, neither I nor II follows.
11. Statements: All fish are tortoise. No tortoise is a crocodile.
Conclusions:
No crocodile is a fish.
No fish is a crocodile.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option E
Explanation:
Since both the premises are universal and one premise is negative, the conclusion must be universal negative. Also, the conclusion should not contain the middle term. So, II follows; I is the converse of II and thus it also holds.
12. Statements: Some dedicated souls are angels. All social workers are angels.
Conclusions:
Some dedicated souls are social workers.
Some social workers are dedicated souls.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
The first premise is an I type proposition. So, the middle term 'angels' forming the predicate is not distributed. The second premise is an A type proposition. So, the middle term 'angels' forming the predicate is not distributed. Since the middle term is not distributed even once in the premises, no definite conclusion follows.
13. Statements: No gentleman is poor. All gentlemen are rich.
Conclusions:
No poor man is rich.
No rich man is poor.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option D
Explanation:
The first premise is an E-type proposition, So, the middle term 'gentleman' forming the subject is distributed. The second premise is an A-type proposition. So, the middle term 'gentlemen' forming the subject is distributed. Since the middle term is distributed twice, the conclusion cannot be universal. Since one premise is negative, the conclusion must be negative. Thus, it follows that 'Some rich men are not poor'. Thus, neither I nor II follows.
14. Statements: Some swords are sharp. All swords are rusty
Conclusions:
Some rusty things are sharp.
Some rusty things are not sharp.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option A
Explanation:
Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, I follows. Since both the premises are affirmative, the conclusion cannot be negative. Thus, II does not follow.
15.Statements: All film stars are playback singers. All film directors are film stars.
Conclusions:
All film directors are playback singers.
Some film stars are film directors.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option E
Explanation:
Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, I follows. II is the converse of the second premise and so it also holds.
16. Statements: All hill stations have a sun-set point. X is a hill station.
Conclusions:
X has a sun-set point.
Places other than hill stations do not have sun-set points.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option A
Explanation:
Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, only I follows.
17. Statements: Some dreams are nights. Some nights are days.
Conclusions:
All days are either nights or dreams.
Some days are nights.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option B
Explanation:
Since both the premises are particular, no definite conclusion follows. However, II is the converse of the second premise and thus it holds.
18.Statements: All jungles are tigers. Some tigers are horses.
Conclusions:
Some horses are jungles.
No horse is jungle.
A. | Only conclusion I follows |
B. | Only conclusion II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option C
Explanation:
Since the middle term 'tigers' is not distributed even once in the premises, no definite conclusion follows. However, I and II involve only the extreme terms and form a complementary pair. So, either I or II follows.
DATA SUFFICIENCY
1.Question: What is the code for 'sky' in the code language ? Statements: In the code language, 'sky is clear' is written as 'de ra fa'. In the same code language, 'make it clear' is written as 'de ga jo'.
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A. | I alone is sufficient while II alone is not sufficient | B. | II alone is sufficient while I alone is not sufficient | C. | Either I or II is sufficient | D. | Neither I nor II is sufficient | E. | Both I and II are sufficient |
Answer & Explanation Answer: Option D Explanation: The only word common to I and II is 'clear' and as such, only the code for 'clear' can be ascertained from the given information.
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2. | Question: How many children are there between P and Q in a row of children ? Statements: P is fifteenth from the left in the row. Q is exactly in the middle and there are ten children towards his right.
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A. | I alone is sufficient while II alone is not sufficient | B. | II alone is sufficient while I alone is not sufficient | C. | Either I or II is sufficient | D. | Neither I nor II is sufficient | E. | Both I and II are sufficient |
Answer & Explanation Answer: Option E Explanation: From II, Q being in the middle, there are 10 children to his right as well as to his left. So, Q is 11th from the left. From I, P is 15th from the left. Thus, from both I and II, we conclude that there are 3 children between P and Q.
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3. | Question: How is T related to K? Statements: R's sister J has married Ts brother L, who is the only son of his parents. K is the only daughter of L and J.
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A. | I alone is sufficient while II alone is not sufficient | B. | II alone is sufficient while I alone is not sufficient | C. | Either I or II is sufficient | D. | Neither I nor II is sufficient | E. | Both I and II are sufficient |
Answer & Explanation Answer: Option E Explanation: From I, we know that L is T's brother and J's husband. Since L is the only son of his parents, T is L's sister. From II, we know that K is L's daughter. Thus, from I and II, we conclude that T is the sister of K's father i.e. T is K's aunt.
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4. | Question: How is J related to P ? Statements: M is brother of P and T is sister of P. P's mother is married to J's husband who has one son and two daughters.
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A. | I alone is sufficient while II alone is not sufficient | B. | II alone is sufficient while I alone is not sufficient | C. | Either I or II is sufficient | D. | Neither I nor II is sufficient | E. | Both I and II are sufficient |
Answer & Explanation Answer: Option B Explanation: From II, we know that P's mother is married to J's husband, which means that J is P's mother.
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5. | Question: How is X related to Y ? Statements: Y and Z are children of D who is wife of X. R's sister X is married to Ys father.
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A. | I alone is sufficient while II alone is not sufficient | B. | II alone is sufficient while I alone is not sufficient | C. | Either I or II is sufficient | D. | Neither I nor II is sufficient | E. | Both I and II are sufficient |
Answer & Explanation Answer: Option C Explanation: From I, we conclude that Y is the child of D who is wife of X i.e. X is Y's father. From II, X is married to Y's father. This implies that X is Y's mother. |
6.Question: Who is to the immediate right of P among five persons P, Q, R, S and T facing North ?
Statements:
R is third to the left of Q and P is second to the right of R.
Q is to the immediate left of T who is second to the right of P.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option C
Explanation:
From I, we have the order: R, -, P, Q.
From II, we have the order: P, Q, T.
Clearly, each one of the above two orders indicates that Q is to the immediate right of P.
7. Question: Who is to the immediate right of P among five persons P, Q, R, S and T facing North ?
Statements:
R is third to the left of Q and P is second to the right of R.
Q is to the immediate left of T who is second to the right of P.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option C
Explanation:
From I, we have the order: R, -, P, Q.
From II, we have the order: P, Q, T.
Clearly, each one of the above two orders indicates that Q is to the immediate right of P.
8. Question: On which date of the month was Anjali born in February 2004 ?
Statements:
Anjali was born on an even date of the month.
Anjali's birth date was a prime number.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option E
Explanation:
From I and II, we conclude that Anjali was born in February 2004 on a date which is an even prime number. Since the only even prime number is 2, so Anjali was born on 2nd February, 2004.
9. Question: How is X related to Y?
Statements:
Y says, "I have only one brother".
X says, "I have only one sister".
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option D
Explanation:
The statements in I and II do not provide any clue regarding relation between X and Y.
10. Question: How is F related to P?
Statements:
P has two sisters M and N.
F's mother is sister of M's father.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option E
Explanation:
From I and II, we conclude that P is M's brother and so M's father is P's father. So, F is the child of the sister of P's father i.e. F's mother is P's aunt or F is P's cousin.
11. Question: When is Manohar's birthday this year ?
Statements:
It is between January 13 and 15, January 13 being Wednesday.
It is not on Friday.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option A
Explanation:
From I, we conclude that Manohar's birthday is on January 14, which is Thursday.
12. Question: How is 'No' coded in the code language ?
Statements:
'Ne Pa Sic Lo' means 'But No None And' and 'Pa Lo Le Ne' means 'If None And But'.
'Le Se Ne Sic' means 'If No None Will' and 'Le Pi Se Be' means 'Not None If All'.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option A
Explanation:
In the two statements given in I, the common words are 'But', 'None', 'And' and the
common code words are 'Ne', 'Pa', ,'Lo'. So, 'Ne', 'Pa' and 'Lo' are codes for 'But', 'None' and 'And'. Thus, in the first statement, 'Sic' is the code for 'No'.
13. Question: Who among P, Q, T, V and M is exactly in the middle when they are arranged in ascending order of their heights ?
Statements:
V is taller than Q but shorter than M.
T is taller than Q and M but shorter than P.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option E
Explanation:
From I, we have: M > V > Q.
From II, we have: T > Q, T > M, P > T.
Combining the above two, we have: P>T>M>V>Q i.e. Q<v<m<t<p.< p=""></v<m<t<p.<>
Clearly, M is in the middle.
14. Question: Which code word stands for 'good' in the coded sentence 'sin co bye' which means 'He is good' ?
Statements:
In the same code language, 'co mot det' means 'They are good'.
In the same code language, 'sin mic bye' means 'He is honest'.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option C
Explanation:
In the given statement and I, the common word is 'good' and the common code word is 'co'. So, 'co' is the code for 'good'.
In the given statement and II, the common words are 'He' and 'is' and the common code words are 'sin' and 'bye'. So 'sin' and 'bye' are the codes for 'He' and 'is'. Thus, in the given statement, 'co' is the code for 'good'.
15. Question: What is the numerical code for 'water' in a certain code ?
Statements:
The code for 'give me water' is '719'.
The code for 'you can bring water for me' is written as '574186'.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option D
Explanation:
In I and II, the common words are 'me' and 'water' and the common code numbers are '7' and '1'. So, the code for 'water' is either '7' or '1'.
16. Question: A is D's brother. F is mother of D. How is D related to A?
Statements:
F has only one son and one daughter.
A is the only son of P who has two children.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option C
Explanation:
A is D's brother and F is D's mother. So, A is F's son.
From I, we conclude that F has one son A and one daughter D. So, D is A's sister. From II, A is P's only son. But, F is A's mother. So, P is A's father. Also, P has two children - A and D. Since P has only one son, so D is P's daughter. Thus, D is A's sister.
17. Question: How many visitors saw the exhibition yesterday ?
Statements:
Each entry pass holder can take up to three persons with him/her.
In all, 243 passes were sold yesterday.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option D
Explanation:
From I and II, we find that maximum (243 x 3) i.e. 729 visitors saw the exhibition.
But the exact number cannot be determined.
18. Question: Gaurav ranks eighteenth from the top in a class. What is his rank from the last?
Statements:
There are 47 students in the class.
Jatin who ranks 10th in the same class, ranks 38th from the last.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option C
Explanation:
From I, we conclude that in a class of 47 students, Gaurav ranks 18th from the top and hence 30th from the last.
From II, we conclude that there are 9 students above and 37 students below Jatin in rank. Thus, there are (9 + 1 + 37) = 47 students in the class.
So, Gaurav who ranks 18th from the top, is 30th from the last.
19. Question: What is the rank of P from the bottom in a class of 30 students ?
Statements:
M is third from the top and there are five students between M and P.
The rank of K is fourth from the bottom and there are 17 students between K and P.
A. | I alone is sufficient while II alone is not sufficient |
B. | II alone is sufficient while I alone is not sufficient |
C. | Either I or II is sufficient |
D. | Neither I nor II is sufficient |
E. | Both I and II are sufficient |
Answer & Explanation
Answer: Option C
Explanation:
From I, we conclude that P is 9th from the top. Thus, in a class of 30 students, P ranks 22nd from the bottom.
From II, we conclude that P is 22nd from the bottom.
20. | Question: In a row of five buildings - P, Q, R, S and T, which building is in the middle ? Statements: Buildings S and Q are at the two extreme ends of the row. Building ,T is to the right of building R.
|
A.I alone is sufficient while II alone is not sufficient B.II alone is sufficient while I alone is not sufficient C.Either I or II is sufficient D.Neither I nor II is sufficient |
|
|
|
|
Answer & Explanation
Answer: Option D
Explanation:
From I, we have the order : S, -, -, -, Q. From II, we have the order : R, T. Combining the above two, we get two possible orders : S, R, T, P, Q or S, P, R, T, Q. Thus, either T or R is in the middle.
ARITHMETIC REASONING
1.A pineapple costs Rs. 7 each. A watermelon costs Rs. 5 each. X spends Rs. 38 on these fruits. The number of pineapples purchased is
Answer & Explanation
Answer: Option C
Explanation:

2. A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's age is
A. | 23 years |
B. | 34 years |
C. | 45 years |
D. | None of these |
Answer & Explanation
Answer: Option C
Explanation:
Let x and y be the ten's and unit's digits respectively of the numeral denoting the woman's age.
Then, woman's age = (10X + y) years; husband's age = (10y + x) years.
Therefore (10y + x)- (10X + y) = (1/11) (10y + x + 10x + y)
(9y-9x) = (1/11)(11y + 11x) = (x + y) 10x = 8y x = (4/5)y
Clearly, y should be a single-digit multiple of 5, which is 5.
So, x = 4, y = 5.
Hence, woman's age = 10x + y = 45 years.
3. A girl counted in the following way on the fingers of her left hand : She started by calling the thumb 1, the index finger 2, middle finger 3, ring finger 4, little finger 5 and then reversed direction calling the ring finger 6, middle finger 7 and so on. She counted upto 1994. She ended counting on which finger ?
A. | Thumb |
B. | Index finger |
C. | Middle finger |
D. | Ring finger |
Answer & Explanation
Answer: Option B
Explanation:
Clearly, while counting, the numbers associated to the thumb will be : 1, 9,17, 25,.....
i.e. numbers of the form (8n + 1).
Since 1994 = 249 x 8 + 2, so 1993 shall correspond to the thumb and 1994 to the index finger.
4. A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?
Answer & Explanation
Answer: Option D
Explanation:
Let number of notes of each denomination be x.
Then, x + 5x + 10x = 480 → 16x = 480 → x = 30.
Hence, total number of notes = 3x = 90.
5. What is the product of all the numbers in the dial of a telephone ?
A. | 1,58,480 |
B. | 1,59,450 |
C. | 1,59,480 |
D. | None of these |
Answer & Explanation
Answer: Option D
Explanation:
Since one of the numbers on the dial of a telephone is zero, so the product of all the numbers on it is 0.
6.A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?
Answer & Explanation
Answer: Option C
Explanation:
Since B and D are twins, so B = D.
Now, A = B + 3 and A = C - 3.
Thus, B + 3 = C - 3 → D + 3 = C-3 → C - D = 6.
7. The 30 members of a club decided to play a badminton singles tournament. Every time a member loses a game he is out of the tournament. There are no ties. What is the minimum number of matches that must be played to determine the winner ?
Answer & Explanation
Answer: Option B
Explanation:
Clearly, every member except one (i.e. the winner) must lose one game to decide the winner. Thus, minimum number of matches to be played = 30 - 1 = 29.
8. In a garden, there are 10 rows and 12 columns of mango trees. The distance between the two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden. The length of the garden is
Answer & Explanation
Answer: Option B
Explanation:
Each row contains 12 plants.
Leaving 2 corner plants, 10 plants in between have (10 x 2) metres and 1 metre on each side is left.
Therefore Length = (20 + 2) m = 22 m.
9. 12 year old Manick is three times as old as his brother Rahul. How old will Manick be when he is twice as old as Rahul ?
A. | 14 years |
B. | 16 years |
C. | 18 years |
D. | 20 years |
Answer & Explanation
Answer: Option B
Explanation:
Manick's present age = 12 years, Rahul's present age = 4 years.
Let Manick be twice as old as Rahul after x years from now.
Then, 12 + x = 2 (4 + x) → 12 + x = 8 + 2x → x = 4.
Hence, Manick's required age = 12 + x = 16 years.
10. A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 10 pieces. He cut at the rate of 45 cuts a minute. How many rolls would be cut in 24 minutes ?
A. | 32 rolls |
B. | 54 rolls |
C. | 108 rolls |
D. | 120 rolls |
Answer & Explanation
Answer: Option D
Explanation:
Number of cuts made to cut a roll into 10 pieces = 9.
Therefore Required number of rolls = (45 x 24)/9 = 120.
11.A student got twice as many sums wrong as he got right. If he attempted 48 sums in all, how many did he solve correctly ?
Answer & Explanation
Answer: Option B
Explanation:
Suppose the boy got x sums right and 2x sums wrong.
Then, x + 2x = 48 → 3x = 48 → x = 16.
12. David gets on the elevator at the 11th floor of a building and rides up at the rate of 57 floors per minute. At the same time, Albert gets on an elevator at the 51st floor of the same building and rides down at the rate of 63 floors per minute. If they continue travelling at these rates, then at which floor will their paths cross ?
Answer & Explanation
Answer: Option C
Explanation:

13. I have a few sweets to be distributed. If I keep 2, 3 or 4 in a pack, I am left with one sweet. If I keep 5 in a pack, I am left with none. What is the minimum number of sweets I have to pack and distribute ?
Answer & Explanation
Answer: Option A
Explanation:
Clearly, the required number would be such that it leaves a remainder of 1 when divided by 2, 3 or 4 and no remainder when divided by 5. Such a number is 25.
14. If a clock takes seven seconds to strike seven, how long will it take to strike ten ?
A. | 7 seconds |
B. | 9 seconds |
C. | 10 seconds |
D. | None of these |
Answer & Explanation
Answer: Option D
Explanation:

15. In a group of cows and hens, the number of legs are 14 more than twice the number of heads. The number of cows is
Answer & Explanation
Answer: Option B
Explanation:
Let the number of cows be x and the number of hens be y.
Then, 4x + 2y = 2 (x + y) + 14 → 4x + 2y = 2x + 2y + 14 → 2x = 14
→ x = 7.
16.A father tells his son, "I was of your present age when you were born". If the father is 36 now, how old was the boy five years back ?
Answer & Explanation
Answer: Option A
Explanation:
Let the father's age be x and the son's age be y.
Then, x - y = y or x = 2y,
Now, x = 36. So, 2y = 36 or y = 18.
Therefore Son's present age = 18 years.
So, son's age 5 years ago = 13 years.
17.
A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed
A. | 30 birds |
B. | 60 birds |
C. | 72 birds |
D. | 90 birds |
Answer & Explanation
Answer: Option A
Explanation:

18. In a class, 3/5 of the students are girls and rest are boys. If 2/9 of the girls and 1/4 of the boys are absent, what part of the total number of students is present ?
Answer & Explanation
Answer: Option C
Explanation:

19. In a family, a couple has a son and a daughter. The age of the father is three times that of his daughter and the age of the son is half of that of his mother. The wife is 9 years younger to her husband and the brother is seven years older than his sister. What is the age of the mother ?
A. | 40 years |
B. | 45 years |
C. | 50 years |
D. | 60 years |
Answer & Explanation
Answer: Option D
Explanation:
Let the daughter's age be x years.
Then, father's age = (3x) years.
Mother's age = (3x - 9) years; Son's age = (x + 7) years.
So, x + 7 = (3x-9)/2 → 2x + 14 = 3x - 9 → x = 23.
Therefore Mother's age = (3X - 9) = (69 - 9) years = 60 years.
20. If a 1 mm thick paper is folded so that the area is halved at every fold, then what would be the thickness of the pile after 50 folds ?
A. | 100 km |
B. | 1000 km |
C. | 1 million km |
D. | 1 billion km |
Answer & Explanation
Answer: Option D
Explanation:

DATA INTERPRETATION
TABLE CHARTS
I.Study the following table and answer the questions.
Number of Candidates Appeared and Qualified in a Competitive Examination from Different States Over the Years.
State | Year |
1997 | 1998 | 1999 | 2000 | 2001 |
App. | Qual. | App. | Qual. | App. | Qual. | App. | Qual. | App. | Qual. |
M | 5200 | 720 | 8500 | 980 | 7400 | 850 | 6800 | 775 | 9500 | 1125 |
N | 7500 | 840 | 9200 | 1050 | 8450 | 920 | 9200 | 980 | 8800 | 1020 |
P | 6400 | 780 | 8800 | 1020 | 7800 | 890 | 8750 | 1010 | 9750 | 1250 |
Q | 8100 | 950 | 9500 | 1240 | 8700 | 980 | 9700 | 1200 | 8950 | 995 |
R | 7800 | 870 | 7600 | 940 | 9800 | 1350 | 7600 | 945 | 7990 | 885 |
1. Total number of candidates qualified from all the states together in 1997 is approximately what percentage of the total number of candidates qualified from all the states together in 1998?
Answer & Explanation
Answer: Option C
Explanation:
Required percentage |
= |
| (720 + 840 + 780 + 950 + 870) | x 100 |
| % | (980 + 1050 + 1020 + 1240 + 940) |
|
|
|
| = 79.54% → 80%. |
2. | What is the average candidates who appeared from State Q during the given years? |
Answer & Explanation Answer: Option C Explanation: Required average |
= | 8100 + 9500 + 8700 + 9700 + 8950 | 5 |
|
|
|
| = 8990. |
|
3. | In which of the given years the number of candidates appeared from State P has maximum percentage of qualified candidates? |
Answer & Explanation Answer: Option D Explanation: The percentages of candidates qualified to candidates appeared from State P during different years are: For 1997 |
| 780 | x 100 |
| % = 12.19%. | 6400 |
For 1998 |
| 1020 | x 100 |
| % = 11.59%. | 8800 |
For 1999 |
| 890 | x 100 |
| % = 11.41%. | 7800 |
For 2000 |
| 1010 | x 100 |
| % = 11.54%. | 8750 |
For 2001 |
| 1250 | x 100 |
| % = 12.82%. | 9750 |
Maximum percentage is for the year 2001.
|
4. | What is the percentage of candidates qualified from State N for all the years together, over the candidates appeared from State N during all the years together? |
Answer & Explanation Answer: Option D Explanation: Required percentage |
= |
| (840 + 1050 + 920 + 980 + 1020) | x 100 |
| % | (7500 + 9200 + 8450 + 9200 + 8800) |
|
|
|
| = 11.15% |
|
5. | The percentage of total number of qualified candidates to the total number of appeared candidates among all the five states in 1999 is? |
Answer & Explanation Answer: Option B Explanation: Required percentage |
= |
| (850 + 920 + 890 + 980 + 1350) | x 100 |
| % | (7400 + 8450 + 7800 + 8700 + 9800) |
|
|
|
| = 11.84%. |
|
6.Combining the states P and Q together in 1998, what is the percentage of the candidates qualified to that of the candidate appeared?
Answer & Explanation
Answer: Option C
Explanation:
Required percentage |
= |
| (1020 + 1240) | x 100 |
| % | (8800 + 9500) |
|
|
|
| = 12.35%. |
IIThe Numbers in the Brackets give the Maximum Marks in Each Subject.
Student | Subject (Max. Marks) |
Maths | Chemistry | Physics | Geography | History | Computer Science |
(150) | (130) | (120) | (100) | (60) | (40) |
Ayush | 90 | 50 | 90 | 60 | 70 | 80 |
Aman | 100 | 80 | 80 | 40 | 80 | 70 |
Sajal | 90 | 60 | 70 | 70 | 90 | 70 |
Rohit | 80 | 65 | 80 | 80 | 60 | 60 |
Muskan | 80 | 65 | 85 | 95 | 50 | 90 |
Tanvi | 70 | 75 | 65 | 85 | 40 | 60 |
Tarun | 65 | 35 | 50 | 77 | 80 | 80 |
1. | What are the average marks obtained by all the seven students in Physics? (rounded off to two digit after decimal) |
Answer & Explanation Answer: Option B Explanation: Average marks obtained in Physics by all the seven students |
= | 1 | x [ (90% of 120) + (80% of 120) + (70% of 120) | 7 |
|
| + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ] |
|
= | 1 | x [ (90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120 ] | 7 |
|
|
|
|
|
| = 89.14. |
|
2. | The number of students who obtained 60% and above marks in all subjects is? |
Answer & Explanation Answer: Option B Explanation: From the table it is clear that Sajal and Rohit have 60% or more marks in each of the six subjects.
|
3. | What was the aggregate of marks obtained by Sajal in all the six subjects? |
Answer & Explanation Answer: Option D Explanation: Aggregate marks obtained by Sajal = [ (90% of 150) + (60% of 130) + (70% of 120) + (70% of 100) + (90% of 60) + (70% of 40) ] = [ 135 + 78 + 84 + 70 + 54 + 28 ] = 449.
|
4. | In which subject is the overall percentage the best? |
Answer & Explanation Answer: Option A Explanation: We shall find the overall percentage (for all the seven students) with respect to each subject. The overall percentage for any subject is equal to the average of percentages obtained by all the seven students since the maximum marks for any subject is the same for all the students. Therefore, overall percentage for: (i) Maths |
= |
| 1 | x (90 + 100 + 90 + 80 + 80 + 70 + 65) |
| % | 7 |
|
|
|
| = 82.14%. | (ii) Chemistry |
= |
| 1 | x (50 + 80 + 60 + 65 + 65 + 75 + 35) |
| % | 7 |
|
|
|
| = 61.43%. | (iii) Physics |
= |
| 1 | x (90 + 80 + 70 + 80 + 85 + 65 + 50) |
| % | 7 |
|
|
|
| = 74.29%. | (iv) Geography |
= |
| 1 | x (60 + 40 + 70 + 80 + 95 + 85 + 77) |
| % | 7 |
|
|
|
| = 72.43%. | (v) History |
= |
| 1 | x (70 + 80 + 90 + 60 + 50 + 40 + 80) |
| % | 7 |
|
|
|
| = 67.14%. | (vi) Comp. Science |
= |
| 1 | x (80 + 70 + 70 + 60 + 90 + 60 + 80) |
| % | 7 |
|
|
|
| = 72.86%. |
Clearly, this percentage is highest for Maths.
|
5. | What is the overall percentage of Tarum? |
Answer & Explanation Answer: Option C Explanation: Aggregate marks obtained by Tarun = [ (65% of 150) + (35% of 130) + (50% of 120) + ((77% of 100) + (80% of 60) + (80% of 40) ] = [ 97.5 + 45.5 + 60 + 77 + 48 + 32 ] = 360. The maximum marks (of all the six subjects) = (150 + 130 + 120 + 100 + 60 + 40) = 600. Overall percentage of Tarun = |
| 360 | x 100 |
| % = 60%. | 600 |
|
III.Study the following table and answer the questions.
Classification of 100 Students Based on the Marks Obtained by them in Physics and Chemistry in an Examination.
Subject | Marks out of 50 |
40 and above | 30 and above | 20 and above | 10 and above | 0 and above |
Physics | 9 | 32 | 80 | 92 | 100 |
Chemistry | 4 | 21 | 66 | 81 | 100 |
Average (Aggregate) | 7 | 27 | 73 | 87 | 100 |
1. | What is the different between the number of students passed with 30 as cut-off marks in Chemistry and those passed with 30 as cut-off marks in aggregate? |
Answer & Explanation Answer: Option D Explanation: Required difference = (No. of students scoring 30 and above marks in Chemistry) - (Number of students scoring 30 and above marks in aggregate) = 27 - 21 = 6.
|
2. | If at least 60% marks in Physics are required for pursuing higher studies in Physics, how many students will be eligible to pursue higher studies in Physics? |
Answer & Explanation Answer: Option B Explanation: We have 60% of 50 = |
| 60 | x 50 |
| = 30. | 100 |
Required number = No. of students scoring 30 and above marks in Physics = 32
|
3. | The percentage of number of students getting at least 60% marks in Chemistry ove those getting at least 40% marks in aggregate, is approximately? |
Answer & Explanation Answer: Option C Explanation: Number of students getting at least 60% marks in Chemistry = Number of students getting 30 and above marks in Chemistry = 21. Number of students getting at least 40% marks in aggregate = Number of students getting 20 and above marks in aggregate = 73. Required percentage |
|
| = 28.77% |
| 29%. |
|
4. | The number of students scoring less than 40% marks in aggregate is? |
Answer & Explanation Answer: Option D Explanation: We have 40% of 50 = |
| 40 | x 50 |
| = 20. | 100 |
Required number = Number of students scoring less than 20 marks in aggreagate = 100 - Number of students scoring 20 and above marks in aggregate = 100 - 73 = 27.
|
5. | If it is known that at least 23 students were eligible for a Symposium on Chemistry, then the minimum qualifying marks in Chemistry for eligibility to Symposium would lie in the range? |
Answer & Explanation Answer: Option C Explanation: Since 66 students get 20 and above marks in Chemistry and out of these 21 students get 30 and above marks, therefore to select top 35 students in Chemistry, the qualifying marks should lie in the range 20-30. |
IV.Study the following table and answer the questions based on it.
Number of Candidates Appeared, Qualified and Scheduled in a Competitive Examination from Five States Delhi, H.P, U.P, Punjab and Haryana Over the Years 1994 to 1998
Year | Delhi | H.P | U.P | Punjab | Haryana |
App | Qual | Sel | App | Qual | Sel | App | Qual | Sel | App | Qual | Sel | App | Qual | Sel |
1997 | 8000 | 850 | 94 | 7800 | 810 | 82 | 7500 | 720 | 78 | 8200 | 680 | 85 | 6400 | 700 | 75 |
1998 | 4800 | 500 | 48 | 7500 | 800 | 65 | 5600 | 620 | 85 | 6800 | 600 | 70 | 7100 | 650 | 75 |
1999 | 7500 | 640 | 82 | 7400 | 560 | 70 | 4800 | 400 | 48 | 6500 | 525 | 65 | 5200 | 350 | 55 |
2000 | 9500 | 850 | 90 | 8800 | 920 | 86 | 7000 | 650 | 70 | 7800 | 720 | 84 | 6400 | 540 | 60 |
2001 | 9000 | 800 | 70 | 7200 | 850 | 75 | 8500 | 950 | 80 | 5700 | 485 | 60 | 4500 | 600 | 75 |
1. | For which state the average number of candidates selected over the years is the maximum? |
Answer & Explanation Answer: Option A Explanation: The average number of candidates selected over the given period for various states are: For Delhi = | 94 + 48 + 82 + 90 + 70 | = | 384 | = 76.8. | 5 | 5 |
For H.P. = | 82 + 65 + 70 + 86 + 75 | = | 378 | = 75.6. | 5 | 5 |
For U.P. = | 78 + 85 + 48 + 70 + 80 | = | 361 | = 72.2. | 5 | 5 |
For Punjab = | 85 + 70 + 65 + 84 + 60 | = | 364 | = 72.8. | 5 | 5 |
For Haryana = | 75 + 75 + 55 + 60 + 75 | = | 340 | = 68. | 5 | 5 |
Clearly, this average is maximum for Delhi.
|
2. | The percentage of candidates qualified from Punjab over those appeared from Punjab is highestin the year? |
Answer & Explanation Answer: Option D Explanation: The percentages of candidates qualified from Punjab over those appeared from Punjab during different years are: For 1997 = |
| 680 | x 100 |
| % = 8.29%. | 8200 |
For 1998 = |
| 600 | x 100 |
| % = 8.82%. | 6800 |
For 1999 = |
| 525 | x 100 |
| % = 8.08%. | 6500 |
For 2000 = |
| 720 | x 100 |
| % = 9.23%. | 7800 |
For 2001 = |
| 485 | x 100 |
| % = 8.51%. | 5700 |
Clearly, this percentage is highest for the year 2000. |
3. | In the year 1997, which state had the lowest percentage of candidates selected over the candidates appeared? |
Answer & Explanation Answer: Option D Explanation: The percentages of candidates selected over the candidates appeared in 1997, for various states are: (i) For Delhi = |
| 94 | x 100 |
| % = 1.175%. | 8000 |
(ii) For H.P. = |
| 82 | x 100 |
| % = 1.051%. | 7800 |
(iii) For U.P. = |
| 78 | x 100 |
| % = 1.040%. | 7500 |
(iv) For Punjab |
| 85 | x 100 |
| % = 1.037%. | 8200 |
(v) For Haryana |
| 75 | x 100 |
| % = 1.172%. | 6400 |
Clearly, this percentage is lowest for Punjab.
|
4. | The number of candidates selected from Haryana during the period under review is approximately what percent of the number selected from Delhi during this period? |
Answer & Explanation Answer: Option D Explanation: Required percentage |
= |
| (75 + 75 + 55 + 60 + 75) | x 100 |
| % | (94 + 48 + 82 + 90 + 70) |
|
|
|
| = 88.54% |
| 88.5% |
|
5. | The percentage of candidates selected from U.P over those qualified from U.P is highest in the year? |
Answer & Explanation Answer: Option B Explanation: The percentages of candidates selected from U.P. over those qualified from U.P. during different years are: For 1997 = |
| 78 | x 100 |
| % = 10.83%. | 720 |
For 1998 = |
| 85 | x 100 |
| % = 13.71%. | 620 |
For 1999 = |
| 48 | x 100 |
| % = 12%. | 400 |
For 2000 = |
| 70 | x 100 |
| % = 10.77%. | 650 |
For 2001 = |
| 80 | x 100 |
| % = 8.42%. | 950 |
Clearly, this percentage is highest for the year 1998. |
6.
What is the approximate percentage of total number of candidates selected to the total number of candidates qualified for all five stages together during the year 1999?
Answer & Explanation
Answer: Option D
Explanation:
Required percentage |
= |
| (82 + 70 + 48 + 65 + 55) |
| % | (640 + 560 + 400 + 525 + 350) |
|
|
|
| = 12.93% |
| 13%. |
V.The following table gives the sales of batteries manufactured by a company over the years.
Number of Different Types of Batteries Sold by a Company Over the Years (Numbers in Thousands)
Year | Types of Batteries |
4AH | 7AH | 32AH | 35AH | 55AH | Total |
1992 | 75 | 144 | 114 | 102 | 108 | 543 |
1993 | 90 | 126 | 102 | 84 | 126 | 528 |
1994 | 96 | 114 | 75 | 105 | 135 | 525 |
1995 | 105 | 90 | 150 | 90 | 75 | 510 |
1996 | 90 | 75 | 135 | 75 | 90 | 465 |
1997 | 105 | 60 | 165 | 45 | 120 | 495 |
1998 | 115 | 85 | 160 | 100 | 145 | 605 |
1. | What was the approximate percentage increase in the sales of 55AH batteries in 1998 compared to that in 1992? |
Answer & Explanation Answer: Option D Explanation: Required percentage |
|
| = 34.26% |
| 34%. |
|
2. | The total sales of all the seven years is the maximum for which battery? |
Answer & Explanation Answer: Option C Explanation: The total sales (in thousands) of all the seven years for various batteries are: For 4AH = 75 + 90 + 96 + 105 + 90 + 105 + 115 = 676 For 7AH = 144 + 126 + 114 + 90 + 75 + 60 + 85 = 694 For 32AH = 114 + 102 + 75 + 150 + 135 + 165 + 160 = 901 For 35AH = 102 + 84 + 105 + 90 + 75 + 45 + 100 = 601 For 55AH = 108 + 126 + 135 + 75 + 90 + 120 + 145 = 799. Clearly, sales are maximum in case of 32AH batteries. |
3. | What is the difference in the number of 35AH batteries sold in 1993 and 1997? |
Answer & Explanation Answer: Option D Explanation: Required difference = [(84 - 45) x 1000] = 39000.
|
4. | The percentage of 4AH batteries sold to the total number of batteries sold was maximum in the year? |
Answer & Explanation Answer: Option D Explanation: The percentages of sales of 4AH batteries to the total sales in different years are: For 1992 = |
| 75 | x 100 |
| % = 13.81%. | 543 |
For 1993 = |
| 90 | x 100 |
| % = 17.05%. | 528 |
For 1994 = |
| 96 | x 100 |
| % = 18.29%. | 525 |
For 1995 = |
| 105 | x 100 |
| % = 20.59%. | 510 |
For 1996 = |
| 96 | x 100 |
| % = 19.35%. | 465 |
For 1997 = |
| 105 | x 100 |
| % = 21.21%. | 495 |
For 1998 = |
| 115 | x 100 |
| % = 19.01%. | 605 |
Clearly, the percentage is maximum in 1997.
|
5. | In case of which battery there was a continuous decrease in sales from 1992 to 1997? |
Answer & Explanation Answer: Option B Explanation: From the table it is clear that the sales of 7AH batteries have been decreasing continuously from 1992 to 1997. |
VI.A school has four sections A, B, C, D of Class IX students.
The results of half yearly and annual examinations are shown in the table given below.
Result | No. of Students |
Section A | Section B | Section C | Section D |
Students failed in both Exams | 28 | 23 | 17 | 27 |
Students failed in half-yearly but passed in Annual Exams | 14 | 12 | 8 | 13 |
Students passed in half-yearly but failed in Annual Exams | 6 | 17 | 9 | 15 |
Students passed in both Exams | 64 | 55 | 46 | 76 |
1. | If the number of students passing an examination be considered a criteria for comparision of difficulty level of two examinations, which of the following statements is true in this context? |
A. | Half yearly examinations were more difficult. | B. | Annual examinations were more difficult. | C. | Both the examinations had almost the same difficulty level. | D. | The two examinations cannot be compared for difficulty level. |
Answer & Explanation Answer: Option C Explanation: Number of students who passed half-yearly exams in the school = (Number of students passed in half-yearly but failed in annual exams) + (Number of students passed in both exams) = (6 + 17 + 9 + 15) + (64 + 55 + 46 + 76) = 288. Also, Number of students who passed annual exams in the school = (Number of students failed in half-yearly but passed in annual exams) + (Number of students passed in both exams) = (14 + 12 + 8 + 13) + (64 + 55 + 46 + 76) = 288. Since, the number of students passed in half-yearly = the number of students passed in annual exams. Therefore, it can be inferred that both the examinations had almost the same difficulty level. Thus Statements (a), (b) and (d) are false and Statement (c) is true.
|
2. | How many students are there in Class IX in the school? |
Answer & Explanation Answer: Option D Explanation: Since the classification of the students on the basis of their results and sections form independent groups, so the total number of students in the class: = (28 + 23 + 17 + 27 + 14 + 12 + 8 + 13 + 6 + 17 + 9 + 15 + 64 + 55 + 46 + 76) = 430.
|
3. | Which section has the maximum pass percentage in at least one of the two examinations? |
A. | A Section | B. | B Section | C. | C Section | D. | D Section |
Answer & Explanation Answer: Option D Explanation: Pass percentages in at least one of the two examinations for different sections are: For Section A |
| (14 + 6 + 64) | x 100 |
| % = |
| 84 | x 100 |
| % = 75%. | (28 + 14 + 6 + 64) | 112 |
For Section B |
| (12 + 17 + 55) | x 100 |
| % = |
| 84 | x 100 |
| % = 78.5%. | (23 + 12 + 17 + 55) | 107 |
For Section C |
| (8 + 9 + 46) | x 100 |
| % = |
| 63 | x 100 |
| % = 78.75%. | (17 + 8 + 9 + 46) | 80 |
For Section D |
| (13 + 15 + 76) | x 100 |
| % = |
| 104 | x 100 |
| % = 79.39%. | (27 + 13 + 15 + 76) | 131 |
Clearly, the pass percentage is maximum for Section D.
|
4. | Which section has the maximum success rate in annual examination? |
A. | A Section | B. | B Section | C. | C Section | D. | D Section |
Answer & Explanation Answer: Option A Explanation: Total number of students passed in annual exams in a section = [ (No. of students failed in half-yearly but passed in annual exams) + (No. of students passed in both exams) ] in that section Success rate in annual exams in Section A = |
| No. of students of Section A passed in annual exams | x 100 |
| % | Total number of students in Section A |
= |
| (14 + 64) | x 100 |
| % | (28 + 14 + 6 + 64) |
= 69.64%. Similarly, success rate in annual exams in: Section B |
| (12 + 55) | x 100 |
| % = |
| 67 | x 100 |
| % = 62.62%. | (23 + 12 + 17 + 55) | 107 |
Section C |
| (8 + 46) | x 100 |
| % = |
| 54 | x 100 |
| % = 67.5%. | (17 + 8 + 9 + 46) | 80 |
Section D |
| (13 + 76) | x 100 |
| % = |
| 89 | x 100 |
| % = 67.94%. | (27 + 13 + 15 + 76) | 131 |
Clearly, the success rate in annual examination is maximum for Section A.
|
5. | Which section has the minimum failure rate in half yearly examination? |
A. | A section | B. | B section | C. | C section | D. | D section |
Answer & Explanation Answer: Option D Explanation: Total number of failures in half-yearly exams in a section = [ (Number of students failed in both exams) + (Number of students failed in half-yearly but passed in Annual exams) ] in that section Failure rate in half-yearly exams in Section A = |
| Number of students of Section A failed in half-yearly | x 100 |
| % | Total number of students in Section A |
= |
| (28 + 14) | x 100 |
| % | (28 + 14 + 6 + 64) |
= 37.5%. Similarly, failure rate in half-yearly exams in: Section B |
| (23 + 12) | x 100 |
| % = |
| 35 | x 100 |
| % = 32.71%. | (23 + 12 + 17 + 55) | 107 |
Section C |
| (17 + 8) | x 100 |
| % = |
| 25 | x 100 |
| % = 31.25%. | (17 + 8 + 9 + 46) | 80 |
Section D |
| (27 + 13) | x 100 |
| % = |
| 40 | x 100 |
| % = 30.53%. | (27 + 13 + 15 + 76) | 131 |
Clearly, the failure rate is minimum for Section D. |
VII.The following table shows the number of new employees added to different categories of employees in a company and also the number of employees from these categories who left the company every year since the foundation of the Company in 1995.
Year |
Managers | Technicians | Operators | Accountants | Peons |
New | Left | New | Left | New | Left | New | Left | New | Left |
1995 | 760 | - | 1200 | - | 880 | - | 1160 | - | 820 | - |
1996 | 280 | 120 | 272 | 120 | 256 | 104 | 200 | 100 | 184 | 96 |
1997 | 179 | 92 | 240 | 128 | 240 | 120 | 224 | 104 | 152 | 88 |
1998 | 148 | 88 | 236 | 96 | 208 | 100 | 248 | 96 | 196 | 80 |
1999 | 160 | 72 | 256 | 100 | 192 | 112 | 272 | 88 | 224 | 120 |
2000 | 193 | 96 | 288 | 112 | 248 | 144 | 260 | 92 | 200 | 104 |
1. | What is the difference between the total number of Technicians added to the Company and the total number of Accountants added to the Company during the years 1996 to 2000? |
Answer & Explanation Answer: Option D Explanation: Required difference = (272 + 240 + 236 + 256 + 288) - (200 + 224 + 248 + 272 + 260) = 88.
|
2. | What was the total number of Peons working in the Company in the year 1999? |
Answer & Explanation Answer: Option B Explanation: Total number of Peons working in the Company in 1999 = (820 + 184 + 152 + 196 + 224) - (96 + 88 + 80 + 120) = 1192.
|
3. | For which of the following categories the percentage increase in the number of employees working in the Company from 1995 to 2000 was the maximum? |
A. | Managers | B. | Technicians | C. | Operators | D. | Accountants |
Answer & Explanation Answer: Option A Explanation: Number of Managers working in the Company: In 1995 | = 760. | In 2000 | = (760 + 280 + 179 + 148 + 160 + 193) - (120 + 92 + 88 + 72 + 96) |
| = 1252. |
Percentage increase in the number of Managers = |
| (1252 - 760) | x 100 |
| % = 64.74%. | 760 |
Number of Technicians working in the Company: In 1995 | = 1200. | In 2000 | = (1200 + 272 + 240 + 236 + 256 + 288) -
(120 + 128 + 96 + 100 + 112) |
| = 1936. |
Percentage increase in the number of Technicians = |
| (1936 - 1200) | x 100 |
| % = 61.33%. | 1200 |
Number of Operators working in the Company: In 1995 | = 880. | In 2000 | = (880 + 256 + 240 + 208 + 192 + 248) -
(104 + 120 + 100 + 112 + 144) |
| = 1444. |
Percentage increase in the number of Operators = |
| (1444 - 880) | x 100 |
| % = 64.09%. | 880 |
Number of Accountants working in the Company: In 1995 | = 1160. | In 2000 | = (1160 + 200 + 224 + 248 + 272 + 260) -
(100 + 104 + 96 + 88 + 92) |
| = 1884. |
Percentage increase in the number of Accountants = |
| (1884 - 1160) | x 100 |
| % = 62.41%. | 1160 |
Number of Peons working in the Company: In 1995 | = 820. | In 2000 | = (820 + 184 + 152 + 196 + 224 + 200) -
(96 + 88 + 80 + 120 + 104) |
| = 1288. |
Percentage increase in the number of Peons = |
| (1288 - 820) | x 100 |
| % = 57.07%. | 820 |
Clearly, the percentage increase is maximum in case of Managers.
|
4. | What is the pooled average of the total number of employees of all categories in the year 1997? |
Answer & Explanation Answer: Option B Explanation: Total number of employees of various categories working in the Company in 1997 are: Managers | = (760 + 280 + 179) - (120 + 92) = 1007. | Technicians | = (1200 + 272 + 240) - (120 + 128) = 1464. | Operators | = (880 + 256 + 240) - (104 + 120) = 1152. | Accountants | = (1160 + 200 + 224) - (100 + 104) = 1380. | Peons | = (820 + 184 + 152) - (96 + 88) = 972. |
Pooled average of all the five categories of employees working in the Company in 1997 = | 1 | x (1007 + 1464 + 1152 + 1380 + 972) | 5 |
= 1195.
|
5. | During the period between 1995 and 2000, the total number of Operators who left the Company is what percent of total number of Operators who joined the Company? |
Answer & Explanation Answer: Option D Explanation: Total number of Operators who left the Company during 1995 - 2000 = (104 + 120 + 100 + 112 + 144) = 580. Total number of Operators who joined the Company during 1995 - 2000 = (880 + 256 + 240 + 208 + 192 + 248) = 2024. Required Percentage = |
| 580 | x 100 |
| % = 28.66% 29%. | 2024 |
|
VIII.The following table gives the percentage distribution of population of five states, P, Q, R, S and T on the basis of poverty line and also on the basis of sex.
State | Percentage of Population below the Poverty Line | Proportion of Males and Females |
Below Poverty Line | Above Poverty Line |
M : F | M : F |
P | 35 | 5 : 6 | 6 : 7 |
Q | 25 | 3 : 5 | 4 : 5 |
R | 24 | 1 : 2 | 2 : 3 |
S | 19 | 3 : 2 | 4 : 3 |
T | 15 | 5 : 3 | 3 : 2 |
1. | If the male population above poverty line for State R is 1.9 million, then the total population of State R is? |
A. | 4.5 million | B. | 4.85 million | C. | 5.35 million | D. | 6.25 million |
Answer & Explanation Answer: Option D Explanation: Let the total population of State R be x million. Then, population of State R above poverty line = [(100 - 24)% of x] million And so, male population of State R above poverty line But, it is given that male population of State R above poverty line = 1.9 million.
| 2 | x |
| 76 | x x |
| = 1.9 x = | 5 x 100 x 1.9 | = 6.25. | 5 | 100 | 76 x 2 |
Total population of State R = 6.25 million.
|
2. | What will be the number of females above the poverty line in the State S if it is known that the population of State S is 7 million? |
A. | 3 million | B. | 2.43 million | C. | 1.33 million | D. | 5.7 million |
Answer & Explanation Answer: Option B Explanation: Total population of State S = 7 million. Population above poverty line = [(100 - 19)% of 7] million = (81% of 7) million = 5.67 million. And so, the number of females above poverty line in State S = 2.43 million.
|
3. | What will be the male population above poverty line for State P if the female population below poverty line for State P is 2.1 million? |
A. | 2.1 million | B. | 2.3 million | C. | 2.7 million | D. | 3.3 million |
Answer & Explanation Answer: Option D Explanation: Female population below poverty line for State P = 2.1 million Let the male population below poverty line for State P be x million. Then, 5 : 6 = x : 21 x = | 2.1 x 5 | = 1.75. | 6 |
Population below poverty line for State P = (2.1 + 1.75) million = 3.85 million. Let the population above poverty line for State P by y million. Since, 35% of the total population of State P is below poverty line, therefore, 65% of the total population of State P is above poverty line i.e., the ratio of population below poverty line to that above poverty line for State P is 35 : 65. 35 : 65 = 3.85 : y y = | 65 x 3.85 | = 7.15. | 35 |
Population above poverty line for State P = 7.15 million and so, male population above poverty line for State P = 3.3 million.
|
4. | If the population of males below poverty line for State Q is 2.4 million and that for State T is 6 million, then the total populations of States Q and T are in the ratio? |
Answer & Explanation Answer: Option B Explanation: For State Q: Male population below poverty line = 2.4 million. Let the female population below poverty line be x million. Then, 3 : 5 = 2.4 : x x = | 5 x 2.4 | = 4. | 3 |
Total population below poverty line = (2.4 + 4) = 6.4 million. If Nq be the total population of State Q, then, 25% of Nq = 6.4 million Nq = |
| 6.4 x 100 |
| million = 25.6 million. | 25 |
For State T: Male population below poverty line = 6 million. Let the female population below poverty line be y million. Then, 5 : 3 = 6 : y y = | 3 x 6 | = 3.6. | 5 |
Total population below poverty line = (6 + 3.6) = 9.6 million. If Nt be the total population of State T, then, 15% of Nt = 9.6 million Nt = |
| 9.6 x 100 |
| million = 64 million. | 15 |
Thus, Required ratio = | Nq | = | 25.6 | = 0.4 = | 2 | . | Nt | 64 | 5 |
|
Bar Charts
I.The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991 - 1992 to 1998 - 1999.
Foreign Exchange Reserves Of a Country. (in million US $)

1. | The ratio of the number of years, in which the foreign exchange reserves are above the average reserves, to those in which the reserves are below the average reserves is? |
Answer & Explanation Answer: Option C Explanation: Average foreign exchange reserves over the given period = 3480 million US $. The country had reserves above 3480 million US $ during the years 1992-93, 1996-97 and 1997-98, i.e., for 3 years and below 3480 million US $ during the years 1991-92, 1993-94, 1994-95, 1995-56 and 1998-99 i.e., for 5 years. Hence, required ratio = 3 : 5.
|
2. | The foreign exchange reserves in 1997-98 was how many times that in 1994-95? |
Answer & Explanation Answer: Option D Explanation: Required ratio = | 5040 | = 1.5. | 3360 |
|
3. | For which year, the percent increase of foreign exchange reserves over the previous year, is the highest? |
Answer & Explanation Answer: Option A Explanation: There is an increase in foreign exchange reserves during the years 1992 - 1993, 1994 - 1995, 1996 - 1997, 1997 - 1998 as compared to previous year (as shown by bar-graph). The percentage increase in reserves during these years compared to previous year are: For 1992 - 1993 = |
| (3720 - 2640) | x 100 |
| % = 40.91%. | 2640 |
For 1994 - 1995 = |
| (3360 - 2520) | x 100 |
| % = 33.33%. | 2520 |
For 1996 - 1997 = |
| (4320 - 3120) | x 100 |
| % = 38.46%. | 3120 |
For 1997 - 1998 = |
| (5040 - 4320) | x 100 |
| % = 16.67%. | 4320 |
Clearly, the percentage increase over previous year is highest for 1992 - 1993. |
4. | The foreign exchange reserves in 1996-97 were approximately what percent of the average foreign exchange reserves over the period under review? |
Answer & Explanation Answer: Option D Explanation: Average foreign exchange reserves over the given period = |
| 1 | x (2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120) |
| million US $ | 8 |
= 3480 million US $. Foreign exchange reserves in 1996 - 1997 = 4320 million US $. Required percentage = |
| 4320 | x 100 |
| % = 124.14% 125%. | 3480 |
|
5. | What was the percentage increase in the foreign exchange reserves in 1997-98 over 1993-94? |
Answer & Explanation Answer: Option A Explanation: Foreign exchange reserves in 1997 - 1998 = 5040 million US $. Foreign exchange reserves in 1993 - 1994 = 2520 million US $. Increase = (5040 - 2520) = 2520 US $. Percentage Increase = |
| 2520 | x 100 |
| % = 100%. | 2520 |
|
II.The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.

1. | For which of the following years, the percentage rise/fall in production from the previous year is the maximum for Company Y? |
Answer & Explanation Answer: Option A Explanation: Percengate change (rise/fall) in the production of Company Y in comparison to the previous year, for different years are: For 1997 = |
| (35 - 25) | x 100 |
| % = 40%. | 25 |
For 1998 = |
| (35 - 35) | x 100 |
| % = 0%. | 25 |
For 1999 = |
| (40 - 35) | x 100 |
| % = 14.29%. | 35 |
For 2000 = |
| (50 - 40) | x 100 |
| % = 25%. | 40 |
Hence, the maximum percentage rise/fall in the production of Company Y is for 1997.
|
2. | What is the ratio of the average production of Company X in the period 1998-2000 to the average production of Company Y in the same period? |
Answer & Explanation Answer: Option C Explanation: Average production of Company X in the period 1998-2000 = |
| 1 | x (25 + 50 + 40) |
| = |
| 115 |
| lakh tons. | 3 | 3 |
Average production of Company Y in the period 1998-2000 = |
| 1 | x (35 + 40 + 50) |
| = |
| 125 |
| lakh tons. | 3 | 3 |
Required ratio = |
| = | 115 | = | 23 | . |
| 125 | 25 |
|
3. | The average production for five years was maximum for which company? |
Answer & Explanation Answer: Option D Explanation: Average production (in lakh tons) in five years for the three companies are: For Company X = |
| 1 | x (30 + 45 + 25 + 50 + 40) |
| = | 190 | = 38. | 5 | 5 |
For Company Y = |
| 1 | x (25 + 35 + 35 + 40 + 50) |
| = | 185 | = 37. | 5 | 5 |
For Company Z = |
| 1 | x (35 + 40 + 45 + 35 + 35) |
| = | 190 | = 38. | 5 | 5 |
Average production of five years is maximum for both the Companies X and Z.
|
4. | In which year was the percentage of production of Company Z to the production of Company Y the maximum? |
Answer & Explanation Answer: Option A Explanation: The percentages of production of Company Z to the production of Company Z for various years are: For 1996 = |
| 35 | x 100 |
| % = 140%. | 25 |
For 1997 = |
| 40 | x 100 |
| % = 114.29%. | 35 |
For 1998 = |
| 45 | x 100 |
| % = 128.57%. | 35 |
For 1999 = |
| 35 | x 100 |
| % = 87.5%. | 40 |
For 2000 = |
| 35 | x 100 |
| % = 70%. | 50 |
Clearly, this percentage is highest for 1996.
|
5. | What is the percentage increase in the production of Company Y from 1996 to 1999? |
Answer & Explanation Answer: Option D Explanation: Percentage increase in the production of Company Y from 1996 to 1999
= 60%. |
6.
What is the difference between the production of Company Z in 1998 and Company Y in 1996?
A. | 2,00,000 tons | B. | 20,00,000 tons |
C. | 20,000 tons | D. | 2,00,00,000 tons |
Answer & Explanation
Answer: Option B
Explanation:
Required difference | = [(45 - 25) x 1,00,000] tons |
| = 20,00,000 tons. |
III.Study the bar chart and answer the question based on it.
Production of Fertilizers by a Company (in 1000 tonnes) Over the Years

1. | What was the percentage decline in the production of fertilizers from 1997 to 1998? |
Answer & Explanation Answer: Option C Explanation: Required percentage = |
| (45 - 60) |
| % = -25%. | 60 |
There is a decline of 25% in production from 1997 to 1998.
|
2. | The average production of 1996 and 1997 was exactly equal to the average production of which of the following pairs of years? |
A. | 2000 and 2001 | B. | 1999 and 2000 | C. | 1998 and 2000 | D. | 1995 and 2001 |
Answer & Explanation Answer: Option D Explanation: Average production (in 10000 tonnes) of 1996 and 1997 | 40 + 60 | = 50. | 2 |
We shall find the average production (in 10000 tonnes) for each of the given alternative pairs: 2000 and 2001 = | 50 + 75 | = 62.5. | 2 |
1999 and 2000 = | 65 + 50 | = 57.5. | 2 |
1998 and 2000 = | 45 + 50 | = 47.5. | 2 |
1995 and 1999 = | 25 + 65 | = 45. | 2 |
1995 and 2001 = | 25 + 75 | = 50. | 2 |
The average production of 1996 and 1997 is equal to the average production of 1995 and 2001.
|
3. | What was the percentage increase in production of fertilizers in 2002 compared to that in 1995? |
Answer & Explanation Answer: Option C Explanation: Required percentage = |
| (80 - 25) | x 100 |
| % = 220%. | 25 |
|
4. | In which year was the percentage increase in production as compared to the precious year the maximum? |
Answer & Explanation Answer: Option D Explanation: The percentage increase in production compared to previous year for different years are: In 1996 = |
| (40 - 25) | x 100 |
| % = 60%. | 25 |
In 1997 = |
| (60 - 40) | x 100 |
| % = 50%. | 40 |
In 1998 there is a decrease in production. In 1999 = |
| (65 - 45) | x 100 |
| % = 44.44%. | 45 |
In 2000 there is a decrease in production. In 2001 = |
| (75 - 50) | x 100 |
| % = 50%. | 50 |
In 2002 = |
| (80 - 75) | x 100 |
| % = 6.67%. | 75 |
Clearlyl, there is maximum percentage increase in production in 1996.
|
5. | In how many of the given years was the production of fertilizers more than the average production of the given years? |
Answer & Explanation Answer: Option D Explanation: Average production (in 10000 tonnes) over the given years = | 1 | (25 + 40 + 60 + 45 + 65 + 50 + 75 + 80) = 55. | 8 |
The productions during the years 1997, 1999, 2001 and 2002 are more than the average production. |
IV.The bar graph given below shows the percentage distribution of the total expenditures of a company under various expense heads during 2003.
Percentage Distribution of Total Expenditure of a Company

1. | The total amount of expenditures of the company is how many times of expenditure on research and development? |
Answer & Explanation Answer: Option B Explanation: Let the total expenditures be Rs. x. Then, the expenditure on Research and Development (R & D) = Rs. (5% of x)
Ratio of the total expenditure to the expenditure on R & D
Then, the total expenditure is 20 times the expenditure of Research and Development.
|
2. | If the expenditure on advertisement is 2.10 crores then the difference between the expenditure on transport and taxes is? |
A. | Rs. 1.25 crores | B. | Rs. 95 lakhs | C. | Rs. 65 lakhs | D. | Rs. 35 lakhs |
Answer & Explanation Answer: Option D Explanation: Let the total expenditure be Rs. x crores. Then, 15% of x = 2.10 x = |
| 2.10 x 100 |
| = 14. | 15 |
Total expenditure = Rs. 14 crores and so, the difference between the expenditures on transport and taxes = Rs. [(12.5 - 10)% of 14] crores = Rs. [2.5% of 14] crores = Rs. 0.35 crores = Rs. 35 lakhs
|
3. | What is the ratio of the total expenditure on infrastructure and transport to the total expenditure on taxes and interest on loans? |
Answer & Explanation Answer: Option D Explanation: Let the total amount of expenditures be Rs. x. Then, the total expenditure on infrastruture and transport = Rs. [(20 + 12.5)% of x] = Rs. [32.5% of x] and total expenditure on taxes and interest on loans = Rs. [(10 + 17.5)% of x] = Rs. [27.5% of x]
Required ratio = |
| 32.5x/100 |
| = | 13 | . | 27.5x/100 | 11 |
|
4. | If the interest on loans amounted to Rs. 2.45 crores then the total amount of expenditure on advertisement, taxes and research and development is? |
A. | Rs. 7 crores | B. | Rs. 5.4 crores | C. | Rs. 4.2 crores | D. | Rs. 3 crores |
Answer & Explanation Answer: Option C Explanation: Let the total expenditure be Rs. x crores. Then, 17.5% of x = 2.45 x = 14. Total expenditure = Rs. 14 crores. and so, the total expenditure on advertisement, taxes and Research and Development = Rs. [(15 + 10 + 5)% of 14] crores = Rs. [30% of 14] crores = Rs. 4.2 crores.
|
5. | The expenditure on the interest on loans is by what percent more than the expenditure on transport? |
Answer & Explanation Answer: Option D Explanation: Let the total amount of expenditures be Rs. x. Then, the expenditure on interest on loans = Rs. (17.5% of x) = Rs. |
| 17.5 | x |
| 100 |
and the expenditure on transport = Rs. (12.5% of x) = Rs. |
| 12.5 | x |
| . | 100 |
Difference between the two expenditures |
|
|
|
and so, the required percentage = |
| 5x/100 | x 100 |
| % = 40%. | 12.5x/100 |
|
Pie Charts
I.The following pie charts exhibit the distribution of the overseas tourist traffic from India. The two charts shows the tourist distribution by country and the age profiles of the tourists respectively.
Distribution of Overseas Tourist Traffic from India.

1. | What percentage of Indian tourist went to either USA or UK ? |
Answer & Explanation Answer: Option B Explanation: (40+10) = 50% (from first chart)
|
2. | The ratio of the number of Indian tourists that went to USA to the number of Indian tourists who were below 30 years of age is ? |
Answer & Explanation Answer: Option B Explanation: 40:15 = 8:3
|
3. | If amongst other countries, Switzerland accounted for 25% of the Indian tourist traffic, and it is known from official Swiss records that a total of 25 lakh Indian tourists had gone to Switzerland during the year, then find the number of 30-39 year old Indian tourists who went abroad in that year ? |
Answer & Explanation Answer: Option D Explanation: Tourist traffic from other countries to Swiz is 20%.
Amongst this 20%, 25% of traffic from India.
So, 25% of 20% = 5% corresponds to the Indian traffic in Switzerland.
5 % corresponds to Switzerland's 25 lakh. Hence 15% will be 75 lakh. |
II.The following pie chart give the information about the distribution of weight in the human body according to different kinds of components. Study the pie charts and answer the question.
Distribution of Weight in Human Body

1. | What percentage of proteins of the human body is equivalent to the weight of its skin ? |
A. | 41.66 % | B. | 43.33 % | C. | 44.44 % | D. | Cannot be determined |
Answer & Explanation Answer: Option A Explanation: Total percentage = (10 / 24) x 100 = 41.6666667 %
|
2. | How much of the human body is neither made of bones or skin ? |
Answer & Explanation Answer: Option D Explanation: 20 + 10 = 30% is made up of either bones or skin. Hence, 70% is made up of neither.
|
3. | What is the ratio of the distribution of proteins in the muscles to that of the distribution of proteins in the bones ? |
Answer & Explanation Answer: Option D Explanation: It cannot be determined since the respective distributions are not known. |
III.The pie chart shows the distribution of New York market share by value of different computer companies in 2005.

The pie chart shows the distribution of New York market share by volume of different computer companies in 2005.
Number of units sold in 2005 in New York = 1,500
Value of units sold in 2005 in New York = US $1,650,000.
1. | For the year 2005, which company has realised the lowest average unit sales price for a PC ? |
A. | Commodore | B. | IBM | C. | Tandy | D. | Cannot be determined |
Answer & Explanation Answer: Option D Explanation: Although it seems to be Commodore, the answer cannot be determined due to the fact that we are unaware of the break-up of the sales value and volume of companies compromising the other categories.
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2. | Over the period 2005-2006, if sales (value-wise) of IBM PC's increased by 50% and of Apple by 15% assuming that PC sales of all other computer companies remained the same, by what percentage (approximately) would the PC sales in New York (value-wise) increase over the same period ? |
Answer & Explanation Answer: Option A Explanation: If we assume the total sales to be 100 in the first year, IBM's sales would go up by 50% (from 28 to 42) contributing an increase of 14 to the total sales value. Similarly, Apple's increase of 15% would contribute an increase of 2.1 to the total sales value. The net change would be 14 + 2.1 on 100. (i.e., 16.1%)
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3. | In 2005, the average unit sale price of an IBM PC was approximately (in US$) |
Answer & Explanation Answer: Option D Explanation: IBM accounts for 28% of the share by value and 10% of the share by volume. 28% of 1650000 = 28 x 1650000/100 = 462000 10% of 1500 = 10 x 1500/100 = 150 Therefore, average unit sale price = 462000/150 = 3080. |
IV.The following pie-chart shows the sources of funds to be collected by the National Highways Authority of India (NHAI) for its Phase II projects. Study the pie-chart and answers the question that follow.
Sources of funds to be arranged by NHAI for Phase II projects (in crores Rs.)

1. | Near about 20% of the funds are to be arranged through: |
A. | SPVS | B. | External Assistance | C. | Annuity | D. | Market Borrowing |
Answer & Explanation Answer: Option B Explanation: 20% of the total funds to be arranged | = Rs. (20% of 57600) crores |
| = Rs. 11520 crores |
| Rs. 11486 crores. |
Rs. 11486 crores is the amount of funds to be arranged through External Assistance.
|
2. | If NHAI could receive a total of Rs. 9695 crores as External Assistance, by what percent (approximately) should it increase the Market Borrowing to arrange for the shortage of funds? |
Answer & Explanation Answer: Option C Explanation: Shortage of funds arranged through External Assistance |
| = Rs. (11486 - 9695) crores |
|
| = Rs. 1791 crores. |
Increase required in Market Borrowing = Rs. 1791 crores. Percentage increase required = |
| 1791 | x 100 |
| % = 5.98% 6%. | 29952 |
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|
|
|
|
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3. The approximate ratio of the funds to be arranged through Toll and that through Market Borrowing is |
Answer & Explanation Answer: Option B Explanation: Required ratio = | 4910 | = | 1 |
| 1 | . | 29952 | 6.1 | 6 |
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4. | The central angle corresponding to Market Borrowing is |
Answer & Explanation Answer: Option C Explanation: Central angle corresponding to Market Borrowing = |
| 29952 | x 360º |
| = 187.2º | 57600 |
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5. | If the toll is to be collected through an outsourced agency by allowing a maximum 10% commission, how much amount should be permitted to be collected by the outsourced agency, so that the project is supported with Rs. 4910 crores? |
A. | Rs. 6213 crores | B. | Rs. 5827 crores | C. | Rs. 5401 crores | D. | Rs. 5316 crores |
Answer & Explanation Answer: Option C Explanation: Amount permitted | = (Funds required from Toll for projects of Phase II) + (10% of these funds) |
| = Rs. 4910 crores + Rs. (10% of 4910) crores |
| = Rs. (4910 + 491) crores |
| = Rs. 5401 crores. |
|
Line Charts
I.The following line graph gives the ratio of the amounts of imports by a company to the amount of exports from that company over the period from 1995 to 2001.
Ratio of Value of Imports to Exports by a Company Over the Years.

1. | If the imports in 1998 was Rs. 250 crores and the total exports in the years 1998 and 1999 together was Rs. 500 crores, then the imports in 1999 was ? |
A. | Rs. 250 crores | B. | Rs. 300 crores | C. | Rs. 357 crores | D. | Rs. 420 crores |
Answer & Explanation Answer: Option D Explanation: The ratio of imports to exports for the years 1998 and 1999 are 1.25 and 1.40 respectively. Let the exports in the year 1998 = Rs. x crores. Then, the exports in the year 1999 = Rs. (500 - x) crores. 1.25 = | 250 | x = | 250 | = 200 [Using ratio for 1998] | x | 1.25 |
Thus, the exports in the year 1999 = Rs. (500 - 200) crores = Rs. 300 crores. Let the imports in the year 1999 = Rs. y crores. Then, 1.40 = | y | y = (300 x 1.40) = 420. | 300 |
Imports in the year 1999 = Rs. 420 crores.
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2. | The imports were minimum proportionate to the exports of the company in the year ? |
Answer & Explanation Answer: Option C Explanation: The imports are minimum proportionate to the exports implies that the ratio of the value of imports to exports has the minimum value. Now, this ratio has a minimum value 0.35 in 1997, i.e., the imports are minimum proportionate to the exports in 1997.
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3. | What was the percentage increase in imports from 1997 to 1998 ? |
Answer & Explanation Answer: Option D Explanation: The graph gives only the ratio of imports to exports for different years. To find the percentage increase in imports from 1997 to 1998, we require more details such as the value of imports or exports during these years. Hence, the data is inadequate to answer this question.
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4. | If the imports of the company in 1996 was Rs. 272 crores, the exports from the company in 1996 was ? |
A. | Rs. 370 crores | B. | Rs. 320 crores | C. | Rs. 280 crores | D. | Rs. 275 crores |
Answer & Explanation Answer: Option B Explanation: Ratio of imports to exports in the year 1996 = 0.85. Let the exports in 1996 = Rs. x crores. Then, | 272 | = 0.85 x = | 272 | = 320. | x | 0.85 |
Exports in 1996 = Rs. 320 crores.
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5. | In how many of the given years were the exports more than the imports ? |
Answer & Explanation Answer: Option D Explanation: The exports are more than the imports imply that the ratio of value of imports to exports is less than 1. Now, this ratio is less than 1 in years 1995, 1996, 1997 and 2000. Thus, there are four such years. |
II.Study the following line graph and answer the questions based on it.
Number of Vehicles Manufactured by Two companies ove the Years (Number in Thousands)

1. | What is the difference between the number of vehicles manufactured by Company Y in 2000 and 2001 ? |
Answer & Explanation Answer: Option D Explanation: Required difference = (128000 - 107000) = 21000.
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2. | What is the difference between the total productions of the two Companies in the given years ? |
Answer & Explanation Answer: Option C Explanation: From the line-graph it is clear that the productions of Company X in the years 1997, 1998, 1999, 2000, 2001 and 2002 are 119000, 99000, 141000, 78000, 120000 and 159000 and those of Company Y are 139000, 120000,100000, 128000, 107000 and 148000 respectively. Total production of Company X from 1997 to 2002 = 119000 + 99000 + 141000 + 78000 + 120000 + 159000 = 716000. and total production of Company Y from 1997 to 2002 = 139000 + 120000 + 100000 + 128000 + 107000 + 148000 = 742000. Difference = (742000 - 716000) = 26000.
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3. | What is the average numbers of vehicles manufactured by Company X over the given period ? (rounded off to nearest integer) |
Answer & Explanation Answer: Option A Explanation: Average number of vehicles manufactured by Company X = | 1 | x (119000 + 99000 + 141000 + 78000 + 120000 + 159000) | 6 |
= 119333.
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4. | In which of the following years, the difference between the productions of Companies X and Y was the maximum among the given years ? |
Answer & Explanation Answer: Option D Explanation: The difference between the productions of Companies X and Y in various years are: For 1997 (139000 - 119000) = 20000. For 1998 (120000 - 99000) = 21000. For 1999 (141000 - 100000) = 41000. For 2000 (128000 - 78000) = 50000. For 2001 (120000 - 107000) = 13000. For 2002 (159000 - 148000) = 11000. Clearly, maximum difference was in 2000.
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5. | The production of Company Y in 2000 was approximately what percent of the production of Company X in the same year ? |
Answer & Explanation Answer: Option B Explanation: Required percentage = |
| 128000 | x 100 |
| % 164%. | 78000 |
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III.The following line graph gives the percent profit earned by two Companies X and Y during the period 1996 - 2001.
Percentage profit earned by Two Companies X and Y over the Given Years
%Profit = | Income - Expenditure | x 100 |
Expenditure |

1. | The incomes of two Companies X and Y in 2000 were in the ratio of 3:4 respectively. What was the respective ratio of their expenditures in 2000 ? |
Answer & Explanation Answer: Option C Explanation: Let the incomes in 2000 of Companies X and Y be 3x and 4x respectively. And let the expenditures in 2000 of Companies X and Y be E1 and E2 respectively. Then, for Company X we have: 65 = | 3x - E1 | x 100 | 65 | = | 3x | - 1 E1 = 3x x |
| 100 |
| .... (i) | E1 | 100 | E1 | 165 |
For Company Y we have: 50 = | 4x - E2 | x 100 | 50 | = | 4x | - 1 E2 = 4x x |
| 100 |
| .... (ii) | E2 | 100 | E2 | 150 |
From (i) and (ii), we get: E1 | = |
| = | 3 x 150 | = | 15 | (Required ratio). | E2 |
| 4 x 165 | 22 |
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2. | If the expenditure of Company Y in 1997 was Rs. 220 crores, what was its income in 1997 ? |
A. | Rs. 312 crores | B. | Rs. 297 crores | C. | Rs. 283 crores | D. | Rs. 275 crores |
Answer & Explanation Answer: Option B Explanation: Profit percent of Company Y in 1997 = 35. Let the income of Company Y in 1997 be Rs. x crores. Then, 35 = | x - 220 | x 100 x = 297. | 220 |
Income of Company Y in 1997 = Rs. 297 crores.
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3. | If the expenditures of Company X and Y in 1996 were equal and the total income of the two Companies in 1996 was Rs. 342 crores, what was the total profit of the two Companies together in 1996 ? (Profit = Income - Expenditure) |
A. | Rs. 240 crores | B. | Rs. 171 crores | C. | Rs. 120 crores | D. | Rs. 102 crores |
Answer & Explanation Answer: Option D Explanation: Let the expenditures of each companies X and Y in 1996 be Rs. x crores. And let the income of Company X in 1996 be Rs. z crores. So that the income of Company Y in 1996 = Rs. (342 - z) crores. Then, for Company X we have: 40 = | z - x | x 100 | 40 | = | z | - 1 x = | 100z | .... (i) | x | 100 | x | 140 |
Also, for Company Y we have: 45 = | (342 - z) | x 100 | 45 | = | (342 - z) | - 1 x = | (342 - z) x 100 | .... (ii) | x | 100 | x | 145 |
From (i) and (ii), we get: 100z | = | (342 - z) x 100 | z = 168. | 140 | 145 |
Substituting z = 168 in (i), we get : x = 120. Total expenditure of Companies X and Y in 1996 = 2x = Rs. 240 crores. Total income of Companies X and Y in 1996 = Rs. 342 crores. Total profit = Rs. (342 - 240) crores = Rs. 102 crores.
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4. | The expenditure of Company X in the year 1998 was Rs. 200 crores and the income of company X in 1998 was the same as its expenditure in 2001. The income of Company X in 2001 was ? |
A. | Rs. 465 crores | B. | Rs. 385 crores | C. | Rs. 335 crores | D. | Rs. 295 crores |
Answer & Explanation Answer: Option A Explanation: Let the income of Company X in 1998 be Rs. x crores. Then, 55 = | x - 200 | x 100 x = 310. | 200 |
Expenditure of Company X in 2001 | = Income of Company X in 1998 |
| = Rs. 310 crores. |
Let the income of Company X in 2001 be Rs. z crores. Then, 50 = | z - 310 | x 100 z = 465. | 310 |
Income of Company X in 2001 = Rs. 465 crores.
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5. | If the incomes of two Comapanies were equal in 1999, then what was the ratio of expenditure of Company X to that of Company Y in 1999 ? |
Answer & Explanation Answer: Option D Explanation: Let the incomes of each of the two Companies X and Y in 1999 be Rs. x. And let the expenditures of Companies X and Y in 1999 be E1 and E2 respectively. Then, for Company X we have: 50 = | x - E1 | x 100 | 50 | = | x | - 1 x = | 150 | E1 .... (i) | E1 | 100 | E1 | 100 |
Also, for Company Y we have: 60 = | x - E2 | x 100 | 60 | = | x | - 1 x = | 160 | E2 .... (ii) | E2 | 100 | E2 | 100 |
From (i) and (ii), we get: 150 | E1 = | 160 | E2 | E1 | = | 160 | = | 16 | (Required ratio). | 100 | 100 | E2 | 150 | 15 |
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IV.The following line graph gives the percentage of the number of candidates who qualified an examination out of the total number of candidates who appeared for the examination over a period of seven years from 1994 to 2000.
Percentage of Candidates Qualified to Appeared in an Examination Over the Years

1. | The difference between the percentage of candidates qualified to appeared was maximum in which of the following pairs of years? |
A. | 1994 and 1995 | B. | 1997 and 1998 | C. | 1998 and 1999 | D. | 1999 and 2000 |
Answer & Explanation Answer: Option B Explanation: The differences between the percentages of candidates qualified to appeared for the give pairs of years are: For 1994 and 1995 = 50 - 30 = 20. For 1998 and 1999 = 80 - 80 = 0. For 1994 and 1997 = 50 - 30 = 20. For 1997 and 1998 = 80 - 50 = 30. For 1999 and 2000 = 80 - 60 = 20. Thus, the maximum difference is between the years 1997 and 1998.
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2. | In which pair of years was the number of candidates qualified, the same? |
A. | 1995 and 1997 | B. | 1995 and 2000 | C. | 1998 and 1999 | D. | Data inadequate |
Answer & Explanation Answer: Option D Explanation: The graph gives the data for the percentage of candidates qualified to appeared and unless the absolute values of number of candidates qualified or candidates appeared is know we cannot compare the absolute values for any two years. Hence, the data is inadequate to solve this question.
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3. | If the number of candidates qualified in 1998 was 21200, what was the number of candidates appeared in 1998? |
Answer & Explanation Answer: Option C Explanation: The number of candidates appeared in 1998 be x. Then, 80% of x = 21200 x = | 21200 x 100 | = 26500 (required number). | 80 |
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4. | If the total number of candidates appeared in 1996 and 1997 together was 47400, then the total number of candidates qualified in these two years together was? |
Answer & Explanation Answer: Option D Explanation: The total number of candidates qualified in 1996 and 1997 together, cannot be determined until we know at least, the number of candidates appeared in any one of the two years 1996 or 1997 or the percentage of candidates qualified to appeared in 1996 and 1997 together. Hence, the data is inadequate.
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5. | The total number of candidates qualified in 1999 and 2000 together was 33500 and the number of candidates appeared in 1999 was 26500. What was the number of candidates in 2000? |
Answer & Explanation Answer: Option C Explanation: The number of candidates qualified in 1999 = (80% of 26500) = 21200. Number of candidates qualified in 2000 = (33500 - 21200) = 12300. Let the number of candidates appeared in 2000 be x. Then, 60% of x = 12300 x = |
| 12300 x 100 |
| = 20500. | 60 |
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Data Sufficiency (DS)
Problems on Trains
1. |
What is the speed of the train whose length is 210 metres? | I. | The train crosses another train (Howrah Express/12869) of 300 metres length running in opposite direction in 10 seconds. | II. | The train crosses another train (Howrah Express/12869) running in the same direction at the speed of 60 km/hr in 30 seconds. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Time taken to cross the train, running in opposite directions | = | (l1 + l2) | sec. | (u + v) |
u + v = 51. Time taken to cross the train, running in same direction = | (l1 + l2) | sec. | (u - v) |
30 = | (210 + 300) | (u - 60 x (5/18)) |
Thus, u and v can be obtained. Correct answer is (E).
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2. |
What is the length of a running train crossing another 180 metre long train running in the opposite direction? | I. | The relative speed of the two trains was 150 kmph. | II. | The trains took 9 seconds to cross each other. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Let the two trains of length a metres and b metres be moving in opposite directions at u m/s and v m/s. Time taken to cross each other = | (a + b) | sec. | (u + v) |
Now, b = 180, u + v = |
| 150 x | 5 | m/sec | = | 125 | m/sec. | 18 | 3 |
a = (375 - 180) = 195 m.
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3. |
What is the length of a running train? | I. | The train crosses a man in 9 seconds. | II. | The train crosses a 240 metre long platform in 24 seconds. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Time taken by train to cross a min = | Length of train | Speed = | l | ....(i) | Speed of train | 9 |
Time taken by train to cross a platform = | (Length of train + Length of platform) | Speed = | l + 240 | ....(ii) | Speed of train | 24 |
From (i) and (ii), we get | l | = | l + 240 | . | 9 | 24 |
Thus, l can be obtained. So both I and II are necessary to get the answer. The correct answer is (E). |
4. |
What is the speed of the train? | I. | The train crosses a signal pole in 18 seconds. | II. | The train crosses a platform of equal length in 36 seconds. | III. | Length of the train is 330 metres. |
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A. | I and II only | B. | II and III only | C. | I and III only | D. | III and either I or II only | E. | Any two of the three |
Answer & Explanation Answer: Option D Explanation: Let the speed of the train be x metres/sec. Time taken to cross a signal pole = | Length of the train | Speed of the train |
Time taken to cross a platform = | (Length of the train + Length of the Platform) | Speed of the train |
Length of train = 330 m. I and III give, 18 = | 330 | x = | 330 | m/sec = | 55 | m/sec. | x | 18 | 3 |
II and III give, 36 = | 2 x 330 | x = | 660 | m/sec = | 55 | m/sec. | x | 36 | 3 |
Correct answer is (D).
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5. |
What is the speed of the train? | I. | The train crosses a tree in 13 seconds. | II. | The train crosses a platform of length 250 metres in 27 seconds. | III. | The train crosses another train running in the same direction in 32 seconds. |
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A. | I and II only | B. | II and III only | C. | I and III only | D. | Any two of the three | E. | None of these |
Answer & Explanation Answer: Option A Explanation: Let the speed of the train be x metres/sec. Time taken to cross a tree = | Length of the train | Speed of the train |
Time taken to cross a platform = | (Length of the train + Length of the Platform) | Speed of the train |
Thus I and II give the speed of the train. The correct answer is (A.) |
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At what time will the train reach city X from city Y? | I. | The train crosses another train of equal length of 200 metres and running in opposite directions in 15 seconds. | II. | The train leaves city Y and 7.15 a.m. for city X situated at a distance of 558 km. | III. | The 200 metres long train crosses a signal pole in 10 seconds. |
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A. | I only | B. | II only | C. | III only | D. | II and III only | E. | All I, II and III are required. |
Answer & Explanation Answer: Option D Explanation: 6.From the statement I, we get length of the train is 200 metres (Redundant info while comparing with Statement III). The rest of the info given in this statement cannot be used for calculating the speed of the train, because the two trains might run at different speed. III gives, speed = | 200 | m/sec = 20 m/sec = |
| 20 x | 18 | km/hr = 72 km/hr. | 10 | 5 |
II gives, time taken = |
| 558 | hrs = | 31 | hrs = 7 | 3 | hrs = 7 hrs 45 min. | 72 | 4 | 4 |
So, the train will reach city X at 3 p.m. Hence II and III only gives the answer.
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7. |
What is the length of a running train P crossing another running train Q? | I. | These two trains take 18 seconds to cross each other. | II. | These trains are running in opposite directions. | III. | The length of the train Q is 180 metres. |
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A. | I only | B. | II only | C. | III only | D. | All I, II and III are required | E. | Even with I, II and III, the answer cannot be obtained. |
Answer & Explanation Answer: Option E Explanation: Let the length of the train P be x metres. II. These trains are running in opposite directions. III. Length of the train Q is 180 m. I. Time taken by P to cross Q = | (180 + x) | 18 = | (180 + x) | Relative speed | Relative speed |
Thus, even with I, II and III, the answer cannot be obtained. Correct answer is (E). |
Time and Distance
1. |
Two towns are connected by railway. Can you find the distance between them? | I. | The speed of the mail train is 12 km/hr more than that of an express train. | II. | A mail train takes 40 minutes less than an express train to cover the distance. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option D Explanation: Let the distance between the two stations be x km. I. Then, speed of the mail train = (y + 12) km/hr. Thus, even I and II together do not give x. Correct answer is (D).
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2. |
The towns A, B and C are on a straight line. Town C is between A and B. The distance from A to B is 100 km. How far is A from C? | I. | The distance from A to B is 25% more than the distance from C to B. | II. | The distance from A to C is (1/4)of the distance C to B. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: .__________.______________________________________. A x C (100 - x) B Let AC = x km. Then, CB = (100 -x) km.
I. AB = 125% of CB
100 - x = | 100 x 100 | = 80 | 125 |
x = 20 km. AC = 20 km. Thus, I alone gives the answer.
x = 100 x = 20. AC = 20 km. Thus, II alone gives the answer. Correct answer is (C).
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3. |
Two cars pass each other in opposite direction. How long would they take to be 500 km apart? | I. | The sum of their speeds is 135 km/hr. | II. | The difference of their speed is 25 km/hr. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option A Explanation: I gives, relative speed = 135 km/hr. II does not give the relative speed. I alone gives the answer and II is irrelevant. Correct answer is (A).
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4. |
How much time did X take to reach the destination? | I. | The ratio between the speed of X and Y is 3 : 4. | II. | Y takes 36 minutes to reach the same destination. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Since ratio of speed of X : Y is 3 : 4, then ratio of time will be 4 : 3. I. If Y takes 3 min, then X takes 4 min. II. If Y takes 36 min, then X takes |
| 4 | x 36 | min | = 48 min. | 3 |
Thus, I and II together give the answer. Correct answer is (E). |
Time and Work
1. |
A and B together can complete a task in 7 days. B alone can do it in 20 days. What part of the work was carried out by A? | I. | A completed the job alone after A and B worked together for 5 days. | II. | Part of the work done by A could have been done by B and C together in 6 days. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option A Explanation:
(A+ B)'s 1 day's work = | 1 | 7 |
I. (A + B)'s 5 day's work = | 5 | 7 |
Remaining work = |
| 1 - | 5 |
| = | 2 | . | 7 | 7 |
II. is irrelevant. Correct answer is (A).
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2. |
How long will Machine Y, working alone, take to produce x candles? | I. | Machine X produces x candles in 5 minutes. | II. | Machine X and Machine Y working at the same time produce x candles in 2 minutes. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: I. gives, Machine X produces | x | candles in 1 min. | 5 |
II. gives, Machine X and Y produce | x | candles in 1 min. | 2 |
From I and II, Y produces |
| x | - | x |
| = | 3x | candles in 1 min. | 2 | 5 | 10 |
3x | candles are produced by Y in 1 min. | 10 |
x candles will be produced by Y in |
| 10 | x x |
| min = | 10 | min. | 3x | 3 |
Thus, I and II both are necessary to get the answer. Correct answer is (E). |
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3.In how many days can 10 women finish a work? | I. | 10 men can complete the work in 6 days. | II. |
10 men and 10 women together can complete the work in 3 | 3 | days | 7 |
| III. | If 10 men work for 3 days and thereafter 10 women replace them, the remaining work in completed in 4 days. |
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A. | Any two of the three | B. | I and II only | C. | II and III only | D. | I and III only | E. | None of these |
Answer & Explanation Answer: Option A Explanation: I. (10 x 6) men can complete the work in 1 day. 1 man's 1 day's work = | 1 | 60 |
II. |
| 10 x | 24 |
| men + |
| 10 x | 24 |
| women can complete the work in 1 day. | 7 | 7 |
|
| 240 |
| men's 1 day work + |
| 240 |
| women's 1 day work = 1. | 7 | 7 |
|
| 240 | x | 1 |
| + |
| 240 |
| women's 1 day's work = 1. | 7 | 60 | 7 |
|
| 240 |
| women's 1 day's work = |
| 1 - | 4 |
| = | 3 | 7 | 7 | 7 |
10 women's 1 day's work = |
| 3 | x | 7 | x 10 |
| = | 1 | 7 | 240 | 8 |
So, 10 women can finish the work in 8 days.
III. (10 men's work for 3 days) + (10 women's work for 4 days) = 1 (10 x 3) men's 1 day's work + (10 x 4) women's 1 day's work = 1 30 men's 1 day's work + 40 women's 1 day's work = 1
Thus, I and III will give us the answer. And, II and III will give us the answer. Correct answer is (A).
|
4. |
How many workers are required for completing the construction work in 10 days? | I. | 20% of the work can be completed by 8 workers in 8 days. | II. | 20 workers can complete the work in 16 days. | III. | One-eighth of the work can be completed by 8 workers in 5 days. |
|
A. | I only | B. | II and III only | C. | III only | D. | I and III only | E. | Any one of the three |
Answer & Explanation Answer: Option E Explanation: I. | 20 | work can be completed by (8 x 8) workers in 1 day. | 100 |
Whole work can be completed by (8 x 8 x 5) workers in 1 day. = | 8 x 8 x 5 | workers in 10 days = 32 workers in 10 days. | 10 |
II. (20 x 16) workers can finish it in 1 day. | (20 x 16) | workers can finish it in 10 days. | 10 |
32 workers can finish it in 10 days.
III. | 1 | work can be completed by (8 x 5) workers in 1 day. | 8 |
Whole work can be completed by (8 x 5 x 8) workers in 1 day. = | 8 x 5 x 8 | workers in 10 days = 32 workers in 10 days. | 10 |
Any one of the three gives the answer. Correct answer is (E). |
5.8 men and 14 women are working together in a field. After working for 3 days, 5 men and 8 women leave the work. How many more days will be required to complete the work? |
I. | 19 men and 12 women together can complete the work in 18 days. |
II. | 16 men can complete two-third of the work in 16 days. |
III. | In 1 day, the work done by three men in equal to the work done by four women. |
A. | I only |
B. | II only |
C. | III only |
D. | I or II or III |
E. | II or III only |
Answer & Explanation
Answer: Option D
Explanation:
Clearly, I only gives the answer.
Similarly, II only gives the answer.
And, III only gives the answer.
Correct answer is (D).
Simple Interest
1. |
The simple interest on a sum of money is Rs. 50. What is the sum? | I. | The interest rate is 10% p.a. | II. | The sum earned simple interest in 10 years. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Given : S.I. = Rs. 50. I gives, R = 10% p.a. II gives, T = 10 years. Sum = |
| 100 x S.I. |
| = Rs. |
| 100 x 50 |
| = Rs. 50. | T x R | 10 x 10 |
Thus, I and II together give the answer. Correct answer is (E).
|
2. |
What is the sum which earned interest? | I. | The total simple interest was Rs. 7000 after 7 years. | II. | The total of sum and simple interest was double of the sum after 5 years. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Let the sum be Rs. x. I gives, S.I. = Rs. 7000 and T = 7 years. II gives, Sum + S.I. for 5 years = 2 x Sum Sum = S.I. for 5 years. Now, S.I. for 7 years = Rs. 7000. S.I. for 1 year = Rs. | 7000 | = Rs. 1000. | 7 |
Thus, I and II both are needed to get the answer. Correct answer is (E).
|
3. |
What percentage of simple interest per annum did Anand pay to Deepak? | I. | Anand borrowed Rs. 8000 from Deepak for four years. | II. | Anand returned Rs. 8800 to Deepak at the end of two years and settled the loan. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Let the rate be R% p.a. I gives, P = Rs. 8000 and T = 4 years. II gives, S.I. = Rs. (8800 - 8000) = Rs. 800. R = |
| 100 x S.I. |
| = |
| 100 x 800 | % | = 2 | 1 | % p.a. | P x T | 8000 x 4 | 2 |
Thus, I and II both are needed to get the answer. Correct answer is (E).
|
4. |
What is the rate of simple interest? | I. | The total interest earned was Rs. 4000. | II. | The sum was invested for 4 years. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option D Explanation: We know that, R = |
| 100 x S.I. |
| P x T |
Now, I gives, S.I. = Rs. 4000. II gives, T = 4 years. But, P is unknown. So, we cannot find R. So, given data is insufficient to get R. Correct answer is (D). |
5.What is the principal sum? |
I. | The sum amounts to Rs. 690 in 3 years at S.I. |
II. | The sum amounts to Rs. 750 in 5 years at S.I. |
III. | The rate of interest is 5% p.a. |
A. | I and III only |
B. | II and III only |
C. | I and II only |
D. | I and III only, or II and III only |
E. | Any two of the three |
Answer & Explanation
Answer: Option E
Explanation:
Clearly, any of the three will give us the answer.
Correct answer is (E).
Compound Interest
1. |
What is the rate of compound interest? | I. | The principal was invested for 4 years. | II. | The earned interest was Rs. 1491. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option D Explanation: Let Principal = Rs. P and Rate = R% p.a. Then,
Clearly, it does not give the answer. Correct answer is (E).
|
2. |
What will be compounded amount? | I. | Rs. 200 was borrowed for 192 months at 6% compounded annually. | II. | Rs. 200 was borrowed for 16 years at 6%. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: I. Amount = Rs. |
| 200 x |
| 1 + | 6 |
| 16 |
| 100 |
II. Amount = Rs. |
| 200 x |
| 1 + | 6 |
| 16 |
| 100 |
Thus, I as well as II gives the answer. Correct answer is (C).
|
3. |
An amount of money was lent for 3 years. What will be the difference between the simple and the compound interest earned on it at the same rate? | I. | The rate of interest was 8 p.c.p.a. | II. | The total amount of simple interest was Rs. 1200. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Given: T = 3 years. I. gives: R = 8% p.a. II. gives: S.I. = Rs. 1200. Thus, P = Rs. 5000, R = 8% p.a. and T = 3 years. Difference between C.I. and S.I. may be obtained. So, the correct answer is (E). |
4. |
What is the rate of interest p.c.p.a.? | I. | An amount doubles itself in 5 years on simple interest. | II. | Difference between the compound interest and the simple interest earned on a certain amount in 2 years is Rs. 400. | III. | Simple interest earned per annum is Rs. 2000. |
|
A. | I only | B. | II and III only | C. | All I, II and III | D. | Any two of the three | E. | I only or II and III only |
Answer & Explanation Answer: Option E Explanation: I. | P x R x 5 | = P R = 20. | 100 |
II. P |
| 1 + | R |
| 2 | - P - | P x R x 2 | = 400 PR2 = 4000000. | 100 | 100 |
III. | P x R x 1 | = 2000 PR = 200000. | 100 |
| PR2 | = | 4000000 | R = 20. | PR | 200000 |
Thus I only or (II and III) give answer. Correct answer is (E).
|
5. |
What will be the compound interest earned on an amount of Rs. 5000 in 2 years? | I. | The simple interest on the same amount at the same rate of interest in 5 years is Rs. 2000. | II. | The compound interest and the simple interest earned in one year is the same. | III. | The amount becomed more than double on compound interest in 10 years. |
|
A. | I only | B. | I and II only | C. | II and III only | D. | I and III only | E. | None of these |
Answer & Explanation Answer: Option A Explanation: P = Rs. 5000 & T = 2 years. I. S.I. on Rs. 5000 in 5 years is Rs. 2000. | 5000 x R x 5 | = 2000 R = 8. | 100 |
Thus I only gives the answer. Correct answer is (A). |
6.Mr. Gupta borrowed a sum of money on compound interest. What will be the amount to be repaid if he is repaying the entire amount at the end of 2 years? |
I. | The rate of interest is 5 p.c.p.a. |
II. | Simple interest fetched on the same amount in one year is Rs. 600. |
III. | The amount borrowed is 10 times the simple interest in 2 years. |
A. | I only |
B. | III only |
C. | I or II only |
D. | II and Either I or III only |
E. | All I, II and III are required |
Answer & Explanation
Answer: Option D
Explanation:
I. gives, Rate = 5% p.a.
II. gives, S.I. for 1 year = Rs. 600.
III. gives, sum = 10 x (S.I. for 2 years).
Now I, and II give the sum.
For this sum, C.I. and hence amount can be obtained.
Thus, III is redundant.
Again, II gives S.I. for 2 years = Rs. (600 x 2) = Rs. 1200.
Now, from III, Sum = Rs. (10 x 1200) = Rs . 12000.
Thus, Rate = | 100 x 1200 | = 5% p.a. |
2 x 12000 |
Thus, C.I. for 2 years and therefore, amount can be obtained.
Thus, I is redundant.
Hence, I or III redundant.
Profit and Loss
1. |
A man mixes two types of rice (X and Y) and sells the mixture at the rate of Rs. 17 per kg. Find his profit percentage. | I. | The rate of X is Rs. 20 per kg. | II. | The rate of Y is Rs. 13 per kg. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option D Explanation: The ratio, in which X and Y are mixed, is not given. So, both I and II together cannot give the answer. Correct answer is (D).
|
2. |
By selling a product with 20% profit, how much profit was earned? | I. | The difference between cost and selling price is Rs. 40. | II. | The selling price is 120 percent of the cost price. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option A Explanation: Gain = 20% I. Profit = (S.P.) - (C.P.) = Rs. 40. Thus, I give the answer. But, II does not give the answer. Correct answer is (A). |
3.A shopkeeper sells some articles at the profit of 25% on the original price. What is the exact amount of profit? To find the answer, which of the following information given in Statements I and II is/are necessary? | I. | Sale price of the article | II. | Number of articles sold |
|
A. | Only I is necessary | B. | Only II is necessary | C. | Either I or II is necessary | D. | Both I and II are necessary | E. | None of these |
Answer & Explanation Answer: Option D Explanation: Gain = 25% of C.P. In order to find gain, we must know the sale price of each article and the number of articles sold. Correct answer is (D).
|
4. |
A shopkeeper sells some toys at Rs. 250 each. What percent profit does he make? To find the answer, which of the following information given in Statements I and II is/are necessary? | I. | Number of toys sold. | II. | Cost price of each toy. |
|
A. | Only I is necessary | B. | Only II is necessary | C. | Both I and II are necessary | D. | Either I or II ins necessary | E. | None of these |
Answer & Explanation Answer: Option B Explanation: S.P. = Rs. 250 each. To find gain percent, we must know the C.P. of each. Correct answer is (B). |
5.By selling an article what is the profit percent gained? | I. | 5% discount is given on list price. | II. | If discount is not given, 20% profit is gained. | III. | The cost price of the articles is Rs. 5000. |
|
A. | Only I and II | B. | Only II and II | C. | Only I and III | D. | All I, II and III | E. | None of these |
|
|
Answer & Explanation Answer: Option A Explanation: I. Let the list price be Rs. x. Then, S.P. = 95% of Rs. x = Rs. |
| x x | 95 |
| = Rs. | 19x | 100 | 20 |
II. When S.P. = Rs. x and gain = 20%. Then, C.P. = Rs. |
| 100 | x x |
| = Rs. | 5x | 120 | 6 |
Gain = |
| 19x | - | 5x |
| = |
| 57x - 50x |
| = | 7x | 20 | 6 | 60 | 60 |
Gain % = |
| 7x | x | 6 | x 100 | % = 14%. | 60 | 5x |
Thus, I and II only give the answer. Correct answer is (A).
|
6. |
What was the percentage of discount given? | I. | 23.5% profit was earned by selling an almirah for Rs. 12,350. | II. | If there were no discount, the earned profit would have been 30%. | III. | The cost price of the almirah was Rs. 10,000. |
|
A. | Only I and II | B. | Only II and III | C. | Only I and III | D. | Any two of the three | E. | None of these |
Answer & Explanation Answer: Option E Explanation: I. S.P. = Rs. 12350, Gain = 23.5% C.P. = Rs. |
| 100 | x 12350 |
| = Rs. 10,000. | 123.5 |
II. M.P. = 130% of C.P. = 130% of Rs. 10,000 = Rs. 13,000. From I and II, discount = Rs. (13000 - 12350) = Rs. 650.
| Discount % = |
| 650 | x 100 | % = 5%. | 13000 |
Thus, I and II give the answer. II and III can not give the answer. Because we require profit percentage with discount and profit percentage without discount. So II and III are not sufficient. Since III gives C.P. = Rs. 10,000, I and III give the answer. Therefore, I and II [or] I and III give the answer. Correct answer is (E). |
7.What is the percent profit earned by the shopkeeper on selling the articles in his shop? |
I. | Labeled price of the articles sold was 130% of the cost price. |
II. | Cost price of each article was Rs. 550. |
III. | A discount of 10% on labeled price was offered. |
A. | Only I |
B. | Only II |
C. | I and III |
D. | All the three are required |
E. | Question cannot be answer even with information in all the three statements. |
Answer & Explanation
Answer: Option C
Explanation:
I. Let C.P. be Rs. x.
Then, M.P. = 130% of x = Rs. |
| 13x | . |
10 |
III. S.P. = 90% of M.P.
Thus, I and III give, S.P. = Rs. |
| 90 | x | 13x |
| = Rs. |
| 117x |
|
100 | 10 | 100 |
Gain = Rs. |
| 117x | - x |
| = Rs. | 17x |
100 | 100 |
Thus, from I and III, gain % can be obtained.
Clearly, II is redundant.
Partnership
1.Ravi, Gagan and Nitin are running a business firm in partnership. What is Gagan's share in the profit earned by them? | I. | Ravi, Gagan and Nitin invested the amounts in the ratio of 2 : 4 : 7. | II. | Nitin's share in the profit is Rs. 8750. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Let us name Ravi, Gagan and Nitin by R, G and N respectively. I. R : G : N = 2 : 4 : 7. II. N = 8750.. From I and II, we get: When N = 7, then G = 4. When N = 8750, then G = |
| 4 | x 8750 |
| = 5000. | 7 |
Thus, both I and II are needed to get the answer. Correct answer is (E).
|
2. |
Rahul, Anurag and Vivek started a business together. In what proportion would the annual profit be distributed among them? | I. | Rahul got one-fourth of the profit. | II. | Rahul and Vivek contributed 75% of the total investment. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Let the total investment be Rs. x.
R : A : V = | x | : | x | : | x | = 1 : 1 : 2. | 4 | 4 | 2 |
Thus, both I and II are needed to get the answer. Correct answer is (E). |
3.What is R's share of profit in a joit venture? |
I. | Q started business investing Rs. 80,000. |
II. | R joined him after 3 months. |
III. | P joined after 4 months with a capital of Rs. 1,20,000 and got Rs. 6000 as his share profit. |
A. | All I, II and III |
B. | I and III only |
C. | II and III only |
D. | Even with all I, II and III, the answer cannot be arrived at |
E. | None of these |
Answer & Explanation
Answer: Option D
Explanation:
From I, II and III, we get P : Q : R = (120000 x 8) : (80000 x 12) : (x x 9).
Since R's investment is not given, the above ratio cannot be give.
Given data is inadequate.Correct answer is (E).
4.How much did Rohit get as profit at the year-end in the business done by Nitin, Rohit and Kunal? |
I. | Kunal invested Rs. 8000 for nine months, his profit was times that of Rohit's and his investment was four times that of Nitin. |
II. | Nitin and Rohit invested for one year in the proportion 1 : 2 respectively. |
III. | The three together got Rs. 1000 as profit at the year end. |
A. | Only I and II |
B. | Only I and III |
C. | Question cannot be answered even with the information in all the three statements. |
D. | All I, II and III |
E. | None of these |
Answer & Explanation
Answer: Option D
Explanation:
I and II give:
K = Rs. (8000 x 9) for 1 month = Rs. 72000 for 1 month.
N = Rs. |
| 1 | x 8000 x 12 |
| for 1 month = Rs. 24000 for 1 month. |
4 |
R = Rs. 48000 for 1 month.
K : N : R = 72000 : 24000 : 48000 = 3 : 1 : 2.
III gives, total profit = Rs. 1000.
Rohit's share = Rs. |
| 1000 x | 2 |
| = Rs. 333 | 1 |
6 | 3 |
Correct answer is (D).
5.Three friends, P, Q and R started a partnership business investing money in the ratio of 5 : 4 : 2 respectively for a period of 3 years. What is the amount received by P as his share profit? |
I. | Total amount invested in the business in Rs. 22,000. |
II. | Profit earned at the end of 3 years is of the total investment. |
III. | The average amount of profit earned per year is Rs. 2750. |
A. | I or II or III |
B. | Either III only, or I and II together |
C. | Any two of the three |
D. | All I, II and III are required. |
E. | None of these |
Answer & Explanation
Answer: Option B
Explanation:
I and II give, profit after 3 years = Rs. |
| 3 | x 22000 |
| = Rs. 8250. |
8 |
From III also, profit after 3 years = Rs. (2750 x 3) = Rs. 8250.
P's share = Rs. |
| 8250 x | 5 |
| = Rs. 3750. |
11 |
Thus, (either III is redundant [or] I and II are redundant).
Correct answer is (B).
Problems on Ages
|
1.What is Sonia's present age? | I. | Sonia's present age is five times Deepak's present age. | II. | Five years ago her age was twenty-five times Deepak's age at that time. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: II. S - 5 = 25 (D - 5) S = 25D - 120 ....(ii) Using (i) in (ii), we get S = |
| 25 x | S |
| - 120 | 5 |
4S = 120. S = 30. Thus, I and II both together give the answer. So, correct answer is (E).
|
2. |
Average age of employees working in a department is 30 years. In the next year, ten workers will retire. What will be the average age in the next year? | I. | Retirement age is 60 years. | II. | There are 50 employees in the department. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: I. Retirement age is 60 years. II. There are 50 employees in the department. Average age of 50 employees = 30 years. Total age of 50 employees = (50 x 30) years = 1500 years. Number of employees next year = 40. Total age of 40 employees next year (1500 + 40 - 60 x 10) = 940. Average age next year = | 940 | years = 23 | 1 | years. | 40 | 2 |
Thus, I and II together give the answer. So, correct answer is (E).
|
3. |
Divya is twice as old as Shruti. What is the difference in their ages? | I. | Five years hence, the ratio of their ages would be 9 : 5. | II. | Ten years back, the ratio of their ages was 3 : 1. |
|
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: Let Divya's present age be D years and Shruti's present age b S years Then, D = 2 x S D - 2S = 0 ....(i)
II. | D - 10 | = | 3 | ....(iii) | S - 10 | 1 |
From (ii), we get : 5D + 25 = 9S + 45 5D - 9S = 20 ....(iv) From (iii), we get : D - 10 = 3S - 30 D - 3S = -20 ....(v) Thus, from (i) and (ii), we get the answer. Also, from (i) and (iii), we get the answer. I alone as well as II alone give the answer. Hence, the correct answer is (C).
|
|
4.What is Arun's present age? | I. | Five years ago, Arun's age was double that of his son's age at that time. | II. | Present ages of Arun and his son are in the ratio of 11 : 6 respectively. | III. | Five years hence, the respective ratio of Arun's age and his son's age will become 12 : 7. |
|
A. | Only I and II | B. | Only II and III | C. | Only I and III | D. | Any two of the three | E. | None of these |
Answer & Explanation Answer: Option D Explanation: II. Let the present ages of Arun and his son be 11x and 6x years respectively. I. 5 years ago, Arun's age = 2 x His son's age. III. 5 years hence, | Arun's Age | = | 12 | Son's age | 7 |
Clearly, any two of the above will give Arun's present age. Correct answer is (D).
|
5. |
What is Ravi's present age? | I. | The present age of Ravi is half of that of his father. | II. | After 5 years, the ratio of Ravi's age to that of his father's age will be 6 : 11. | III. | Ravi is 5 years younger than his brother. |
|
A. | I and II only | B. | II and III only | C. | I and III only | D. | All I, II and III | E. | Even with all the three statements answer cannot be determined. |
Answer & Explanation Answer: Option A Explanation: I. Let Ravi's present age be x years. Then, his father's present age = 2x years. II. After 5 years, | Ravi's age | = | 6 | Father's age | 11 |
III. Ravi is younger than his brother. From I and II, we get | x + 5 | = | 6 | . This gives x, the answer. | 2x + 5 | 11 |
Thus, I and II together give the answer. Clearly, III is redundant. Correct answer is (A).
6.What is the present age of Tanya? | I. | The ratio between the present ages of Tanya and her brother Rahul is 3 : 4 respectively. | II. | After 5 years the ratio between the ages of Tanya and Rahul will be 4 : 5. | III. | Rahul is 5 years older than Tanya. |
A. | I and II only | B. | II and III only | C. | I and III only | D. | All I, II and III | E. | Any two of the three |
Answer & Explanation Answer: Option E Explanation: I. Let the present ages of Tanya and Rahul be 3x years and 4x years. II. After 5 years, (Tanya's age) : (Rahul's age) = 4 : 5. III. (Rahul's age) = (Tanya's age) + 5.
From I and II, we get | 3x + 5 | = | 4 | . This gives x. | 4x + 5 | 5 |
Tanya's age = 3x can be found. Thus, I and II give the answer.
From I and III, we get 4x = 3x + 5. This gives x. Tanya's age = 3x can be found. Thus, I and III give the answer.
From III : Let Tanya's present age be t years. Then Rahul's present age = (t + 5) years. Thus, from II and III, we get : | t | = | 4 | . This gives t. | t + 5 | 5 |
Thus, II and III give the answer. Correct answer is (E).
|
7.What will be the ratio between ages of Sam and Albert after 5 years? | I. | Sam's present age is more than Albert's present age by 4 years. | II. | Albert's present age is 20 years. | III. | The ratio of Albert's present age to Sam's present age is 5 : 6. |
|
A. | Any two of I, II and III | B. | II only | C. | III only | D. | I or III only | E. | II or III only |
Answer & Explanation Answer: Option A Explanation: Clearly, any two of the given statements will give the answer and in each case, the third is redundant. Correct answer is (A).
|
8. |
What is the difference between the present ages of Ayush and Deepak? | I. | The ratio between Ayush's present age and his age after 8 years 4 : 5. | II. | The ratio between the present ages of Ayush and Deepak is 4 : 3. | III. | The ratio between Deepak's present age and his age four years ago is 6 : 5. |
|
A. | Any two of I, II and III | B. | I or III only | C. | Any one of the three | D. | All I, II and III are required | E. | Even with all I, II and III, the answer cannot be obtained. |
Answer & Explanation Answer: Option A Explanation: Clearly, any two of the given statements will give the answer and in each case, the third is redundant. |
Average
1.The average age of P, Q, R and S is 30 years. How old is R? |
I. | The sum of ages of P and R is 60 years. |
II. | S is 10 years younger than R. |
A. | I alone sufficient while II alone not sufficient to answer |
B. | II alone sufficient while I alone not sufficient to answer |
C. | Either I or II alone sufficient to answer |
D. | Both I and II are not sufficient to answer |
E. | Both I and II are necessary to answer |
Answer & Explanation
Answer: Option D
Explanation:
P + Q + R + S = (30 x 4) P + Q + R + S = 120 .... (i)
I. P + R = 60 .... (ii)
II. S = (R - 10) .... (iii)
From (i), (ii) and (iii), we cannot find R.
Correct answer is (D)
2.What is the average age of children in the class? |
I. | The age of the teacher is as many years as the number of children. |
II. | Average age is increased by 1 year if the teacher's age is also included. |
A. | I alone sufficient while II alone not sufficient to answer |
B. | II alone sufficient while I alone not sufficient to answer |
C. | Either I or II alone sufficient to answer |
D. | Both I and II are not sufficient to answer |
E. | Both I and II are necessary to answer |
Answer & Explanation
Answer: Option D
Explanation:
Let there be x children.
I gives, age of teacher = x years.
II gives, average age of (x + 1) persons = (x + 1) years.
Teacher's age = (x + 1) (x + 1) - x2 = (x2 + 1 + 2x) - x2 = (1 + 2x)
Thus, teacher's age cannot be obtained.
Correct answer is (D)
3.How many candidates were interviewed everyday by the panel A out of the three panels A, B and C? |
I. | The three panels on average interview 15 candidates every day. |
II. | Out of a total of 45 candidates interviewed everyday by the three panels, the number of candidates interviewed by panel A is more by 2 than the candidates interviewed by panel c and is more by 1 than the candidates interviewed by panel B. |
A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer |
C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer |
E. | Both I and II are necessary to answer |
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Answer & Explanation
Answer: Option B
Explanation:
I. Total candidates interviewed by 3 panels = (15 x 3) = 45.
II. Let x candidates be interviewed by C.
Number of candidates interviewed by A = (x + 2).
Number of candidates interviewed by B = (x + 1).
x + (x + 2) + (x + 1) = 45
3x = 42
x = 14
Hence, the correct answer is (B).
4.How many marks did Tarun secure in English? | I. | The average mark obtained by Tarun in four subjects including English is 60. | II. | The total marks obtained by him in English and Mathematics together are 170. | III. | The total marks obtained by him in Mathematics and Science together are 180. |
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A. | I and II only | B. | II and III only | C. | I and III only | D. | All I, II and III | E. | None of these |
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Answer & Explanation Answer: Option E Explanation: I gives, total marks in 4 subjects = (60 x 4) = 240. II gives, E + M = 170 III gives, M + S = 180. Thus, none of (A), (B), (C), (D) is true. Correct answer is (E).
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5. |
In a cricket team, the average age of eleven players in 28 years. What is the age of the captain? | I. | The captain is eleven years older than the youngest player. | II. | The average age of 10 players, other than the captain is 27.3 years. | III. | Leaving aside the captain and the youngest player, the average ages of three groups of three players each are 25 years, 28 years and 30 years respectively. |
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A. | Any two of the three | B. | All I, II and III | C. | II only or I and III only | D. | II and III only | E. | None of these |
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Answer & Explanation Answer: Option C Explanation: Total age of 11 players = (28 x 11) years = 308 years. I. C = Y + 11 C - Y = 11 .... (i) II. Total age of 10 players (excluding captain) = (27.3 x 10) years = 273 years. Age of captain = (308 - 273) years = 35 years. Thus, C = 35. .... (ii) From (i) and (ii), we get Y = 24
III. Total age of 9 players = [ (25 x 3) + (28 x 3) + (30 x 3)] years = 249 years. C + Y = (308 - 249) = 59 .... (iii) From (i) and (iii), we get C = 35.
Thus, II alone gives the answer. Also, I and III together give the answer. Correct answer is (C). |
Area
1.The area of playground is 1600 m2. What is the perimeter? | I. | It is a perfect square playground. | II. | It costs Rs. 3200 to put a fence around the playground at the rate of Rs. 20 per metre. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: Area = 1600 m2. I. Side = sqrt(1600) m = 40 m. So, perimeter = (40 x 4) m = 160 m. I alone gives the answer. II. Perimeter = | Total cost | = | 3200 | m | = 160 m. | Cost per metre | 20 |
II alone gives the answer. Correct answer is (C).
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2. |
The area of a rectangle is equal to the area of right-angles triangle. What is the length of the rectangle? | I. | The base of the triangle is 40 cm. | II. | The height of the triangle is 50 cm. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option D Explanation: Given: Area of rectangle = Area of a right-angles triangle. I gives, B = 40 cm. II gives, H = 50 cm. Thus, to find l, we need b also, which is not given. Given data is not sufficient to give the answer. Correct answer is (D).
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3. |
What is the height of the triangle? | I. | The area of the triangle is 20 times its base. | II. | The perimeter of the triangle is equal to the perimeter of a square of side 10 cm. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option A Explanation: I. A = 20 x B | 1 | x B x H = 20 x B H = 40. | 2 |
I alone gives the answer. II gives, perimeter of the triangle = 40 cm. This does not give the height of the triangle. Correct answer is (A).
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4. |
What will be the cost of painting the inner walls of a room if the rate of painting is Rs. 20 per square foot? | I. | Circumference of the floor is 44 feet. | II. | The height of the wall of the room is 12 feet. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: I gives, 2 R = 44. II gives, H = 12. A = 2 RH = (4 x 12). Cost of painting = Rs. (44 x 12 x 20). Thus, I and II together give the answer. Correct answer is (E). |
5.What is the area of the hall? | I. | Material cost of flooring per square metre is Rs. 2.50 | II. | Labour cost of flooring the hall is Rs. 3500 | III. | Total cost of flooring the hall is Rs. 14,500. |
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A. | I and II only | B. | II and III only | C. | All I, II and III | D. | Any two of the three | E. | None of these |
Answer & Explanation Answer: Option C Explanation: I. Material cost = Rs. 2.50 per m2 II. Labour cost = Rs. 3500. III. Total cost = Rs. 14,500. Let the area be A sq. metres. Material cost = Rs. (14500 - 3500) = Rs. 11,000.
| 5A | = 11000 A = |
| 11000 x 2 |
| = 4400 m2. | 2 | 5 |
Thus, all I, II and III are needed to get the answer. Correct answer is (C).
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6. |
What is the area of a right-angled triangle? | I. | The perimeter of the triangle is 30 cm. | II. | The ratio between the base and the height of the triangle is 5 : 12. | III. | The area of the triangle is equal to the area of a rectangle of length 10 cm. |
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A. | I and II only | B. | II and III only | C. | I and III only | D. | III, and either I or II only | E. | None of these |
Answer & Explanation Answer: Option A Explanation: From II, base : height = 5 : 12. Let base = 5x and height = 12x. Then, hypotenuse = (5x)2 + (12x)2 = 13x. From I, perimeter of the triangle = 30 cm. 5x + 12x + 13x = 30 x = 1. So, base = 5x = 5 cm, height = 12x = 12 cm. Area = |
| 1 | x 5 x 12 | cm2 | = 30 cm2. | 2 |
Thus, I and II together give the answer. Clearly III is redundant, since the breadth of the rectangle is not given. Correct answer is (A).
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7. |
What is the area of rectangular field? | I. | The perimeter of the field is 110 metres. | II. | The length is 5 metres more than the width. | III. | The ratio between length and width is 6 : 5 respectively. |
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A. | I and II only | B. | Any two of the three | C. | All I, II and III | D. | I, and either II or III only | E. | None of these |
Answer & Explanation Answer: Option B Explanation: I. 2(l + b) = 110 l + b = 55. II. l = (b + 5) l - b = 5. These are three equations in l and b. We may solve them pairwise. Any two of the three will give the answer. Correct answer is (B). |
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8.What is the area of the given rectangle? | I. | Perimeter of the rectangle is 60 cm. | II. | Breadth of the rectangle is 12 cm. | III. | Sum of two adjacent sides is 30 cm. |
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A. | I only | B. | II only | C. | I and II only | D. | II and III only | E. | II and either I or III |
Answer & Explanation Answer: Option E Explanation: From I and II, we can find the length and breadth of the rectangle and therefore the area can be obtained. So, III is redundant. Also, from II and III, we can find the length and breadth and therefore the area can be obtained. So, I is redundant. Correct answer is "II and either I or III".
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9. |
What is the cost painting the two adjacent walls of a hall at Rs. 5 per m2 which has no windows or doors? | I. | The area of the hall is 24 sq. m. | II. | The breadth, length and height of the hall are in the ratio of 4 : 6 : 5 respectively. | III. | Area of one wall is 30 sq. m. |
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A. | I only | B. | II only | C. | III only | D. | Either I or III | E. | All I, II and III are required. |
Answer & Explanation Answer: Option C Explanation: From II, let l = 4x, b = 6x and h = 5x. Then, area of the hall = (24x2) m2. From I. Area of the hall = 24 m2. From II and I, we get 24x2 = 24 x = 1. l = 4 m, b = 6 and h = 5 m. Thus, area of two adjacent walls = [(l x h) + (b x h)] m2 can be found out and so the cost of painting two adjacent walls may be found out. Thus, III is redundant. Correct answer is (C). |
Volume and Surface Area
1.What is the volume of 32 metre high cylindrical tank? | I. | The area of its base is 154 m2. | II. | The diameter of the base is 14 m. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: Given, height = 32 m. I gives, area of the base = 154 m2. Volume = (Area of the base x Height) = (154 x 32) m3. Thus, I alone gives the answer. II gives, radius of the base = 7 m. Volume = r2h | = |
| 22 | x 7 x 7 x 32 | m3 | = 4928 m3. | 7 |
Thus, II alone gives the answer. Correct answer is (C).
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2. |
Is a given rectangular block, a cube? | I. | At least 2 faces of the rectangular block are squares. | II. | The volume of the block is 64. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option D Explanation: I gives, any two of l, b, h are equal. II gives, lbh = 64. From I and II, the values of l, b, h may be (1 ,1 , 64), (2 ,2 ,16), (4, 4, 4). Thus, the block may be a cube or cuboid. Correct answer is (D).
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3. |
What is the capacity of a cylindrical tank? | I. | Radius of the base is half of its height which is 28 metres. | II. | Area of the base is 616 sq. metres and its height is 28 metres. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: I gives, h = 28 m and r = 14. Capacity = r2h, which can be obtained. Thus, I alone gives the answer. II gives, r2 = 616 m2 and h = 28 m. Capacity = (r2 x h) = (616 x 28) m3. Thus, II alone gives the answer. Correct answer is (C).
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4. |
What is the height of a circular cone? | I. | The area of that cone is equal to the area of a rectangle whose length is 33 cm. | II. | The area of the base of that cone is 154 sq. cm. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option D Explanation: II gives the value of r. But, in I, the breadth of rectangle is not given. So, we cannot find the surface area of the cone. Hence, the height of the cone cannot be determined. Correct answer is (D).
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5. |
What is the volume of a cube? | I. | The area of each face of the cube is 64 square metres. | II. | The length of one side of the cube is 8 metres. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: Let each edge be a metres. Then, I. a2 = 64 a = 8 m Volume = (8 x 8 x 8) m3 = 512 m3. Thus, I alone gives the answer. II. a = 8 m Volume = (8 x 8 x 8) m3 = 512 m3. Thus, II alone gives the answer. Correct answer is (C). |
6.What is the capacity of the cylindrical tank? |
I. | The area of the base is 61,600 sq. cm. |
II. | The height of the tank is 1.5 times the radius. |
III. | The circumference of base is 880 cm. |
A. | Only I and II |
B. | Only II and III |
C. | Only I and III |
D. | Any two of the three |
E. | Only II and either I or III |
Answer & Explanation
Answer: Option E
Explanation:
Capacity =
r2h.
I gives,
r2 = 61600. This gives r.
II gives, h = 1.5 r.
Thus, I and II give the answer.
Again, III gives 2
r = 880. This gives r.
So, II and III also give the answer.
Correct answer is (E).
Problems on Numbers
1.What is the number? | I. | The sum of the two digits is 8. The ratio of the two digits is 1 : 3. | II. | The product of the two digit of a number is 12. The quotient of two digits is 3. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option C Explanation: Let the tens and units digit be x and y respectively. Then, I gives, 4y = 24 y = 6. So, x + 6 = 8 x = 2.
II gives, x2 = 36 x = 6. So, 3y = 6 y = 2.
Therefore, Either I or II alone sufficient to answer.
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2. |
What is the two-digit number? | I. | The difference between the two digits is 9. | II. | The sum of the digits is equal to the difference between the two digits. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option E Explanation: Let the tens and unit digits be x and y respectively. Then, I. x - y = 9. II. x + y = x - y. From I and II, we get x - y = 9 and x + y = 9. On solving, we get x = 9 and y = 0. Required number is 90. Thus, both I and II are needed to get the answer. Correct answer is (E).
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3. |
What is the two-digit number whose first digit is a and the second digit is b?. The number is greater than 9. | I. | The number is multiple of 51. | II. | The sum of the digits a and b is 6. |
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A. | I alone sufficient while II alone not sufficient to answer | B. | II alone sufficient while I alone not sufficient to answer | C. | Either I or II alone sufficient to answer | D. | Both I and II are not sufficient to answer | E. | Both I and II are necessary to answer |
Answer & Explanation Answer: Option A Explanation: From statement I: A two digit number, greater than 9 and multiple of 51 should be 51 itself. Because, 2 x 51 = 102 (3 digit number). Therefore, I alone sufficient to answer. From statement II: A two digit number, greater than 9 and sum of the digit is 6. It can be 15, 24, 33, 42, 51. So we cannot determine the required answer from the statement II alone. Thus, I alone give the answer while II alone not sufficient to answer. |
4.What is the two-digit number? |
I. | The difference between the tow-digit number and the number formed by interchanging the digits is 27. |
II. | The difference between the two digits is 3. |
III. | The digit at unit's place is less than that at ten's place by 3. |
A. | I and II only |
B. | I and III only |
C. | All I, II and III |
D. | I, and either II or III |
E. | Even with all I, II and III, answer cannot be give. |
Answer & Explanation
Answer: Option E
Explanation:
Let the tens and units digit be x and y respectively.
I. (10x + y) - (10y + x) x - y = 3.
II. x - y = 3.
III. x - y = 3.
Thus, even all the given three statements together do not give the answer.
Correct answer is (E).
Statement and Assumption
In each question below is given a statement followed by two assumptions numbered I and II. You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement.
Give answer
(A) If only assumption I is implicit
(B) If only assumption II is implicit
(C) If either I or II is implicit
(D) If neither I nor II is implicit
(E) If both I and II are implicit.
1. | Statement: The State government has decided to appoint four thousand primary school teachers during the next financial year. Assumptions: There are enough schools in the state to accommodate four thousand additional primary school teachers. The eligible candidates may not be interested to apply as the government may not finally appoint such a large number of primary school teachers.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option A Explanation: Such decisions as given in the statement are taken only after taking the existing vacancies into consideration. So, I implicit while II isn't.
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2. | Statement: A warning in a train compartment - "To stop train, pull chain. Penalty for improper use Rs. 500." Assumptions: Some people misuse the alarm chain. On certain occasions, people may want to stop a running train.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option E Explanation: Clearly, the penalty is imposed to prevent people from misusing the alarm chain. This means that some people misuse it. So, I is implicit. The alarm chain is provided to stop the running train in times of urgency. So, II is also implicit.
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3. | Statement: If it is easy to become an engineer, I don't want to be an engineer. Assumptions: An individual aspires to be professional. One desires to achieve a thing which is hard earned.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option B Explanation: Clearly, nothing is mentioned about the professional nature of the job. So, I is not implicit. The statement hints that one rejects a thing that is easy to achieve. So, II is implicit.
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4. | Statement: The concession in rail fares for the journey to hill stations has been cancelled because it is not needed for people who can spend their holidays there. Assumptions: Railways should give concession only to needy persons. Railways should not encourage people to spend their holidays at hill stations.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option A Explanation: The statement mentions that concessions should not be given to people who can afford to spend holidays in hill stations. This means they should be given only to needy persons. So, I is implicit. But, II does not follow from the statement and is not implicit.
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5. | Statement: "The bridge was built at the cost of Rs. 128 crores and even civil bus service is not utilizing it, what a pity to see it grossly underutilized." - A citizen's view on a new flyover linking east and west sides of a suburb. Assumptions: The building of such bridges does not serve any public objective. There has to be some accountability and utility of money spent on public projects.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option B Explanation: Clearly, the statement expresses grave concern over a newly-built flyover not being utilized by public. This implies that such projects need to be taken up only after working out their utility and that the huge expenditure incurred on building such structures is worthwhile only if they prove useful for the public. Thus, only II is implicit. |
6. | Statement: The Government has decided to levy 2 percent on the tax amount payable for funding drought relief programmes. Assumptions: The Government does not have sufficient money to fund drought relief programmes. The amount collected by way of surcharge may be adequate to fund these drought relief programmes.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option E Explanation: Since a surcharge has been levied to fund drought relief programmes, it follows that the Government does not have sufficient money for the same. So, I is implicit. Besides, the percentage of surcharge must have been decided after studying the expected inflow in relation to amount of funds required. So, II is also implicit.
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7. | Statement: Try to steal this camera from our store - a display on a departmental store. Assumptions: People want to own a camera. The store has a video monitoring system to detect stealing.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option B Explanation: Clearly, the owners of the store warn that one dare not try to steal the camera. So, II is implicit while I isn't.
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8. | Statement: Detergents should be used to clean clothes. Assumptions: Detergents form more lather. Detergents help to dislodge grease and dirt.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option B Explanation: Nothing is mentioned about lather formation by the detergent. So, I is not implicit. Also, detergents should be used as they clean clothes better and more easily. So, II is implicit.
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9. | Statement: It will be a substantial achievement in the field of education if one provides one school for every village in our country and enforce attendance. Assumptions: Children in villages do not attend school regularly. Providing school to every village is desirable.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option E Explanation: The statement lays stress on enforcing attendance. This implies that children in villages do not attend school regularly. So, I is implicit. Besides, the statement calls 'one school for every village' a 'substantial achievement'. So, II is also implicit.
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10. | Statement: The government has decided to disinvest large chunk of its equity in select public sector undertakings for a better fiscal management. Assumptions: The amount generated out of the disinvestment process may reduce substantially the mounting fiscal deficits. There will be enough demand in the market for the shares of these undertakings.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option A Explanation: The fact given in I directly follows from the phrase '..... for a better fiscal management' in the statement. So, I is implicit. However, the public response to the new policy cannot be ascertained. So, II is not implicit. |
11. | Statement: Never before such a lucid book was available on the topic. Assumptions: Some other books were available on this topic. You can write lucid books on very few topics.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option A Explanation: It follows from the statement that books on this topic were available before also but they were not 'lucid'. So, I is implicit. But a general comment as II cannot be made from the given statement. So, II is not implicit.
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12. | Statement: Please do not use lift while going down - an instruction on the top floor of a five-storey building. Assumptions: While going down, the lift is unable to carry any load. Provision of lift is a matter of facility and not of right.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option B Explanation: The statement requests people not to use lift while moving down. This implies that the lift may be used to move up and the request has been made so that more people can use the lift for ascending which would otherwise cause more physical stress than going down the stairs. So, only II is implicit.
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13. | Statement: "I have not received telephone bills for nine months inspite of several complaints" - A telephone customer's letter to the editor of a daily Assumptions: Every customer has a right to get bills regularly from the telephone company. The customer's complaints point to defect in the services which are expected to be corrected.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option E Explanation: The customer's eagerness to get the bills makes I implicit. Besides, the customer has written to the editor to bring the malfunctioning of the department to public notice. So, II is also implicit.
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14. | Statement: "This drink can be had either as it is, or after adding ice to it." - An advertisement. Assumptions: People differ in their preferences. Some people will get attracted to the drink as it can be had as it is.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option E Explanation: The advertisement tells the different ways in which the drink can be had. This means that different people prefer to have it in a different way and that some people would prefer it only because it can be taken in a particular manner. So, both I and II are implicit.
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15. | Statement: Government has permitted unaided colleges to increase their fees. Assumptions: Unaided colleges are in financial difficulties. Aided colleges do not need to increase fees.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option A Explanation: Unaided colleges have been allowed to increase their fees. This means that they are in financial difficulties. So, I is implicit. Nothing is mentioned about the aided colleges. So, II is not implicit. |
16. | Statement: Be humble even after being victorious. Assumptions: Many people are humble after being victorious. Generally people are not humble.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option B Explanation: Clearly, nothing is mentioned about the nature of the people. So, I is not implicit. Also, the statement gives an advice of being humble even after being victorious. This means that generally people are not humble. So, II is implicit.
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17. | Statement: The government has decided to pay compensation to the tune of Rs. 1 lakh to the family members of those who are killed in railway accidents. Assumptions: The government has enough funds to meet the expenses due to compensation. There may be reduction in incidents of railway accidents in near future.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option A Explanation: Clearly, the amount of compensation must have been decided keeping in mind the monetary position of the Government. So, I is implicit. However, nothing can be said about the frequency of railway accidents in future. So, II is not implicit.
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18. | Statement: Films have become indispensable for the entertainment of people. Assumptions: Films are the only media of entertainment. People enjoy films.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option B Explanation: 'Films are indispensable' does not mean that they are the only means of entertainment. So, I is not implicit. Clearly, II follows from the statement. So, it is implicit.
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19. | Statement: Of all the newspapers published in Mumbai, readership of the "Times" is the largest in the Metropolis. Assumptions: 'Times' is not popular in mofussil areas. 'Times' has the popular feature of cartoons on burning social and political issues.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option D Explanation: Neither the volume of readership of the 'Times' in areas other than the Metropolis nor the reason for its huge acclamation is evident from the statement So, neither I nor II is implicit.
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20. | Statement: Apart from the entertainment value of television, its educational value cannot be ignored. Assumptions: People take television to be a means of entertainment only. The educational value of television is not realised properly.
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A. | Only assumption I is implicit | B. | Only assumption II is implicit | C. | Either I or II is implicit | D. | Neither I nor II is implicit | E. | Both I and II are implicit |
Answer & Explanation Answer: Option E Explanation: The statement makes the first assumption clear though educational value is not to be ignored. So, I is implicit. That the educational value must not be ignored also shows that educational value is not realised properly. So, II is also implicit. |
Making Assumptions
1.Mark is working with a realtor to find a location for the toy store he plans to open in his town. He is looking for a place that is either in, or not too far from, the center of town and one that would attract the right kind of foot traffic. Which of the following locations should Mark's realtor call to his attention? |
A. | a storefront in a new high-rise building near the train station in the center of town whose occupants are mainly young, childless professionals who use the train to commute to their offices each day. | B. | a little shop three blocks away from the town's main street, located across the street from an elementary school and next door to an ice cream store | C. | a stand-alone storefront on a quiet residential street ten blocks away from the town's center | D. | a storefront in a small strip mall located on the outskirts of town that is also occupied by a pharmacy and a dry cleaner |
Answer & Explanation Answer: Option B Explanation: This option is both near the center of town and in a location (near a school and an ice cream store) where children and their parents are sure to be around. This is the only option that meets both of Mark's requirements.
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2. | The neighborhood block association has received many complaints about people knocking on doors and soliciting money for an unknown charity organization even though door-to-door solicitation is prohibited by local laws. Three residents have provided descriptions of individuals who have come to their door asking for money. Solicitor #1 is a white male, 20-25 years old, 5'9", 145 pounds, with very short brown hair. He was wearing a dark blue suit and carrying a brown leather briefcase. Solicitor #2 is a white male, 25-30 years old, 6'2", 200 pounds, with a shaved-head. He was wearing a red T-shirt and jeans. Solicitor #3 is a white male, approximately 23 years old, 5'10", slight build, with short brown hair. He was wearing a blue suit. Three days after the block association meet- ing, a resident noticed a man knocking on doors in the neighborhood and phoned the police to report the illegal activity. This solic- itor was described as follows: Solicitor #4 is a white male, 22 years old, 140 pounds, about 5'10", with short brown hair. He was carrying a briefcase and wearing a dark suit. Based on this description, which of the three solicitations was also likely carried out by Solicitor #4? |
A. | #1, #2, and #3 | B. | #1, but not #2 and #3 | C. | #1 and #3, but not #2 | D. | #1 and #2, but not #3 |
Answer & Explanation Answer: Option C Explanation: The solicitor described as #2 has a shaved head and is much taller and heavier than the solicitors described as #1 and #3. Therefore, choices a and d, which include #2, can be ruled out. Solicitors #1, #3, and #4 have such similar descriptions that the correct answer is clearly choice c.
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3. | Rita, an accomplished pastry chef who is well known for her artistic and exquisite wedding cakes, opened a bakery one year ago and is surprised that business has been so slow. A consultant she hired to conduct market research has reported that the local population doesn't think of her shop as one they would visit on a daily basis but rather a place they'd visit if they were celebrating a special occasion. Which of the following strategies should Rita employ to increase her daily business? |
A. | making coupons available that entitle the coupon holder to receive a 25% discount on wedding, anniversary, or birthday cakes | B. | exhibiting at the next Bridal Expo and having pieces of one of her wedding cakes available for tasting | C. | placing a series of ads in the local newspaper that advertise the wide array of breads | D. | moving the bakery to the other side of town |
Answer & Explanation Answer: Option C Explanation: This is the only option that would encourage people to think of the bakery as a shop they would visit regularly and not just on special occasions.
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4. | Dr. Miller has a busy pediatric dentistry practice and she needs a skilled, reliable hygienist to keep things running smoothly. The last two people she hired were recommended by top dentists in the area, but they each lasted less than one month. She is now in desperate need of a hygienist who can competently handle the specific challenges of her practice. Which one of the following candidates should Dr. Miller consider most seriously? |
A. | Marilyn has been a hygienist for fifteen years, and her current employer, who is about to retire, says she is the best in the business. The clientele she has worked with consists of some of the wealthiest and most powerful citizens in the county. | B. | Lindy recently graduated at the top of her class from one of the best dental hygiene programs in the state. Prior to becoming a dental hygienist, Lindy spent two years working in a day care center. | C. | James has worked as a dental hygienist for three years in a public health clinic. He is very interested in securing a position in a private dental office. | D. | Kathy is an experienced and highly recommended dental hygienist who is also finishing up a degree in early childhood education, which she hopes will get her a job as a preschool teacher. She is eager to find a job in a pediatric practice, since she has always wanted to work with children. |
Answer & Explanation Answer: Option B Explanation: The situation described indicates that Dr. Miller's practice presents some specific challenges, namely that it is a busy environment with a child clientele. There is also some indication that even highly recommended, experienced hygienists might not be cut out for Dr. Miller's office. There is nothing to suggest that Marilyn (choice a) or James (choice c) would be a good fit for Dr.Miller's practice. Kathy (choice d) has experience and she is also interested in working with children. However, the fact that she hopes to become a preschool teacher in the not-too-distant future indicates that she might not be the kind of committed, long-term employee that Dr. Miller needs. Lindy (choice b), with her hands-on experience working with children as well as a degree from a prestigious dental hygiene program, is the most attractive candidate for the position based on the situation described
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5. | Mrs. Jansen recently moved to Arizona. She wants to fill her new backyard with flowering plants. Although she is an experienced gardener, she isn't very well-versed in what plants will do well in the Arizona climate. Also, there is a big tree in her backyard making for shady conditions and she isn't sure what plants will thrive without much direct sunlight. Her favorite gardening catalog offers several backyard seed packages. Which one should Mrs. Jansen choose? |
A. | The Rainbow Collection is ideal for North-east gardens. It includes a variety of colorful perennials that thrive in cool, moist conditions. | B. | The Greenhouse Collection will blossom year after year if planted in brightly lit locations and watered regularly. | C. | The Treehouse Collection will provide lush green plants with delicate colorful flowers that thrive in shady and partially shady locations. | D. | The Oasis Collection includes a variety of perennials that thrive in dry climates and bright sunlight. |
Answer & Explanation Answer: Option C Explanation: The Treehouse Collection is the only package that can thrive in shady locations. Choice a requires a Northeastern climate. Choices b and d require bright sunlight. |
Course of Action
In each question below is given a statement followed by two courses of action numbered I and II. You have to assume everything in the statement to be true and on the basis of the information given in the statement, decide which of the suggested courses of action logically follow(s) for pursuing.
Give answer
(A) If only I follows
(B) If only II follows
(C) If either I or II follows
(D) If neither I nor II follows
(E) If both I and II follow.
1.Statement: Most of those who study in premier engineering colleges in India migrate to developed nations for better prospects in their professional pursuits.
Courses of Action:
All the students joining these colleges should be asked to sign a bond at the time of admission to the effect that they will remain in India at least for ten years after they complete education.
All those students who desire to settle in the developed nations should be asked to pay entire cost of their education which the government subsidises.
A. | Only I follows |
B. | Only II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option B
Explanation:
Clearly, no student can be bound to live and work in the country against his wish. So, I does not follow. However, it is quite right to recover the extra benefits awarded to students if they do not serve their own country. So, II follows.
2.Statement: There is an unprecedented increase in migration of villagers to urban areas as repeated crop failure has put them into precarious financial situation.
Courses of Action:
The villagers should be provided with alternate source of income in their villages which will make them stay put.
The migrated villagers should be provided with jobs in the urban areas to help them survive.
A. | Only I follows |
B. | Only II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option A
Explanation:
Clearly, increased migration would add to the burden on city's infrastructure. So, attempts should be made to make the villagers feel comfortable in the villages itself. So, only course I follows.
3.Statement: As stated in the recent census report the female to male ratio is alarmingly low.
Courses of Action:
The government should conduct another census to verify the results.
The government should immediately issue orders to all the departments to encourage people to improve the ratio.
A. | Only I follows |
B. | Only II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option B
Explanation:
A census is always conducted with the utmost precision, leaving chances of only negligible differences. So, I does not follow. Further, the ratio can be improved by creating awareness among the masses and abolishing female foeticide. Thus, only course II follows.
4.Statement: There is an unprecedented increase in migration of villagers to urban areas as repeated crop failure has put them into precarious financial situation.
Courses of Action:
The villagers should be provided with alternate source of income in their villages which will make them stay put.
The migrated villagers should be provided with jobs in the urban areas to help them survive.
A. | Only I follows |
B. | Only II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option A
Explanation:
Clearly, increased migration would add to the burden on city's infrastructure. So, attempts should be made to make the villagers feel comfortable in the villages itself. So, only course I follows.
5.Statement: Four districts in State A have been experiencing severe drought for the last three years resulting into exodus of people from these districts.
Courses of Action:
The government should immediately start food for work programme in the district to put a halt to the exodus.
The government should make since efforts to provide drinking/potable water to these districts
A. | Only I follows |
B. | Only II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option E
Explanation:
The exodus can be stopped by providing the people conditions conducive to living. So, both the courses follow.
6.Statement: If the retired Professors of the same Institutes are also invited to deliberate on restructuring of the organisation, their contribution may be beneficial to the Institute.
Courses of Action:
Management may seek opinion of the employees before calling retired professors.
Management should involve experienced people for the systematic restructuring of the organisation.
A. | Only I follows |
B. | Only II follows |
C. | Either I or II follows |
D. | Neither I nor II follows |
E. | Both I and II follow |
Answer & Explanation
Answer: Option B
Explanation:
Clearly, the statement stresses that the contribution of retired Professors shall be beneficial. This means that these people's experience regarding working of the organisation is helpful. So, only course II follows.
7.Statement: The sale of a particular product has gone down considerably causing great concern to the company. Courses of Action: The company should make a proper study of rival products in the market. The price of the product should be reduced and quality improved.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: Clearly, a study of rival products in the market will help assess the cause for the lowering down of sales and then a suitable action can be taken. Thus, only I follow.
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8. | Statement: The Asian Development Bank has approved a $285 million loan to finance a project to construct coal ports by Paradip and Madras Port Trusts. Courses of Action: India should use financial assistance from other international financial organisations to develop such ports in other places. India should not seek such financial assistance from the international financial agencies.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: Clearly, such projects shall be an asset and a source of income to the country later on. So, course I shall follow.
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9. | Statement: Doordarshan is concerned about the quality of its programmes particularly in view of stiff competition it is facing from STAR and other satellite TV channels and is contemplating various measures to attract talent for its programmes. Courses of Action: In an effort to attract talent, the Doordarshan has decided to revise its fee structure for the artists. The fee structure should not be revised until other electronic media also revise it.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: Clearly, the decision to revise its fee structure for artists is taken by Doordarshan as a remedy to the challenging problem that had arisen before it. It cannot wait till other media take action. So, only course I follows.
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10. | Statement: The Minister said that the teachers are still not familiarised with the need, importance and meaning of population education in the higher education system. They are not even clearly aware about their role and responsibilities in the population education programme. Courses of Action: Population education programme should be included in the college curriculum. Orientation programme should be conducted for teachers on population education
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: Clearly, the statement stresses on teachers' lack of awareness and knowledge in population education and as such the best remedy would be to guide them in this field through orientation programmes. So, only course II follows.
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11. | Statement: A recent study shows that children below five die in the cities of the developing countries mainly from diarrhoea and parasitic intestinal worms. Courses of Action: Governments of the developing countries should take adequate measures to improve the hygienic conditions in the cities. Children below five years in the cities of the developing countries need to be kept under periodic medical check-up.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: Clearly, the two diseases mentioned are caused by unhygienic conditions. So, improving the hygienic conditions is a step towards their eradication. Also, periodic medical check-up will help timely detection of the disease and hence a proper treatment. So, both I and II follow. |
12.Statement: The kharif crops have been affected by the insects for consecutive three years in the district and the farmers harvested less than fifty percent of produce during these years. Courses of Action: The farmers should seek measures to control the attack of insects to protect their crops next year. The Government should increase the support price of kharif crops considerably to protect the economic interests of farmers.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: Clearly, the problem demands taking extra care and adequate precautions to protect crops from insects and extending help to farmers to prevent them from incurring huge losses. Thus, both the courses follow.
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13. | Statement: The car dealer found that there was a tremendous response for the new XYZ's car-booking with long queues of people complaining about the duration of business hours and arrangements. Courses of Action: People should make their arrangement of lunch and snacks while going for car XYZ's booking and be ready to spend several hours. Arrangement should be made for more booking desks and increased business hours to serve more people in less time.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: Seeing the tremendous response, the dealer must make suitable arrangements and deploy more personnel to take care of customers so that they don't have to wait excessively long for booking. So, only course II follows.
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14. | Statement: The State Government has decided to declare 'Kala Azar' as a notifiable disease under the Epidemics Act. Family members or neighbours of the patient are liable to be punished in case they did not inform the State authorities. Courses of Action: Efforts should be made to effectively implement the Act. The cases of punishment should be propagated through mass media so that more people become aware of the stern actions.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: The Act is aimed at eradication of the disease and so it needs to be proclaimed and promoted. So, both the courses follow.
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15. | Statement: The Chairman stressed the need for making education system more flexible and regretted that the curriculum has not been revised in keeping with the pace of the changes taking place. Courses of Action: Curriculum should be reviewed and revised periodically. System of education should be made more flexible.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: Clearly, the situation demands making the education system more flexible and changing it periodically according to the needs of the time. So, both the courses follow.
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16. | Statement: The Central Bureau of Investigation receives the complaint of an officer taking bribe to do the duty he is supposed to. Courses of Action: CBI should try to catch the officer red-handed and then take a strict action against him. CBI should wait for some more complaints about the officer to be sure about the matter.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: Clearly, one complaint is enough for a wrong doing. This should be confirmed by catching the guilty red-handed and then strict action taken against him. So, only course I follows. |
17. | Statement: The Indian electronic component industry venturing into the West European markets faces tough competition from the Japanese. Courses of Action: India should search for other international markets for its products. India should improve the quality of the electronic components to compete with the Japanese in capturing these markets.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
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18. | Statement: Orissa and Andhra Pradesh have agreed in principle to set up a joint control board for better control, management and productivity of several inter-state multipurpose projects. Courses of Action: Other neighbouring states should set up such control boards. The proposed control board should not be allowed to function as such joint boards are always ineffective.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: The effectiveness of such Control Boards is established by the fact that Orissa and A.P. have agreed to it for better control of its multipurpose projects. So, only course I follows.
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19. | Statement: The Government has decided not to provide financial support to voluntary organisations from next Five Year Plan and has communicated that all such organisations should raise funds to meet their financial needs. Courses of Action: Voluntary organisations should collaborate with foreign agencies. They should explore other sources of financial support.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: The problem arising is shortage of funds. So, alternative sources of financial support need to be worked out first. Thus, only course II follows.
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20. | Statement: The availability of imported fruits has increased in the indigenous market and so the demand for indigenous fruits has been decreased. Courses of Action: To help the indigenous producers of fruits, the Government should impose high import duty on these fruits, even if these are not of good quality. The fruit vendors should stop selling imported fruits. So that the demand for indigenous fruits would be increased.
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A. | Only I follows | B. | Only II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: The ideas suggested in both I and II represent unfair means to cut competition. The correct way would be to devise methods and techniques such that the indigenous producers could produce better quality fruits and make them available in the market at prices comparable with those of the imported ones. Hence, neither I nor II follows. |
Cause and Effect
In each of the following questions, two statements numbered I and II are given. There may be cause and effect relationship between the two statements. These two statements may be the effect of the same cause or independent causes. These statements may be independent causes without having any relationship. Read both the statements in each question and mark your answer as
(A) If statement I is the cause and statement II is its effect;
(B) If statement II is the cause and statement I is its effect;
(C) If both the statements I and II are independent causes;
(D) If both the statements I and II are effects of independent causes; and
(E) If both the statements I and II are effects of some common cause.
1. | Statements: There is unprecedented increase in the number of young unemployed in comparison to the previous year. A large number of candidates submitted applications against an advertisement for the post of manager issued by a bank.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option A Explanation: An increase in the number of unemployed youth is bound to draw in huge crowds for a single vacancy.
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2. | Statements: The police authority has recently caught a group of house breakers. The citizens group in the locality have started night vigil in the area.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option E Explanation: Both the statements are clearly backed by a common cause, which is clearly an increase in the number of thefts in the locality. |
3.Statements:
There is considerable reduction in the number of people affected by water-borne diseases in City A during this rainy season.
The government has opened four new civil hospitals in City A in the beginning of the year.
A. | Statement I is the cause and statement II is its effect |
B. | Statement II is the cause and statement I is its effect |
C. | Both the statements I and II are independent causes |
D. | Both the statements I and II are effects of independent causes |
E. | Both the statements I and II are effects of some common cause |
Answer & Explanation
Answer: Option C
Explanation:
The given statements are self-sufficient and depict independent events.
4.Statements:
The prices of vegetables have been increased considerably during this summer.
There is tremendous increase in the temperature during this summer thereby damaging crops greatly.
A. | Statement I is the cause and statement II is its effect |
B. | Statement II is the cause and statement I is its effect |
C. | Both the statements I and II are independent causes |
D. | Both the statements I and II are effects of independent causes |
E. | Both the statements I and II are effects of some common cause |
Answer & Explanation
Answer: Option B
Explanation:
Clearly, damage to crops due to high temperature may have resulted in a short supply of vegetables and hence an increase in their prices.
5.Statements:
Majority of the students in the college expressed their opinion against the college authority's decision to break away from the university and become autonomous.
The university authorities have expressed their inability to provide grants to its constituent colleges.
A. | Statement I is the cause and statement II is its effect |
B. | Statement II is the cause and statement I is its effect |
C. | Both the statements I and II are independent causes |
D. | Both the statements I and II are effects of independent causes |
E. | Both the statements I and II are effects of some common cause |
Answer & Explanation
Answer: Option B
Explanation:
Clearly, the university's decision to refuse grant to the colleges must have triggered the college authority to become autonomous.
6.Statements: The literacy rate in the district has been increasing for the last four years. The district administration has conducted extensive training programme for the workers involved in the literacy drive.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option B Explanation: Clearly, the increase in the literacy rate may be attributed directly to the stringent efforts of the district administration in this direction.
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7. | Statements: The school authority has asked the X Std. students to attend special classes to be conducted on Sundays. The parents of the X Std. students have withdrawn their wards from attending private tuitions conducted on Sundays.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option A Explanation: It seems quite evident that the parents have instructed their wards to abstain from private tuitions on Sundays and attend special classes organised by the school. |
8. | Statements: The Government has imported large quantities of sugar as per trade agreement with other countries. The prices of sugar in the domestic market have fallen sharply in the recent months.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option A Explanation: The increase in supply always triggers a reduction in the prices. |
9. | Statements: There is sharp decline in the production of oil seeds this year. The Government has decided to increase the import quantum of edible oil.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option A Explanation: A sharp decline in oilseed production is bound to reduce oil supply and import of oil is the only means to restore the essential supply.
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10. | Statements: The private medical colleges have increased the tuition fees in the current year by 200 per cent over the last year's fees to meet the expenses. The Government medical colleges have not increased their fees in spite of price escalation.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option C Explanation: The increase in the fees of the private colleges and there being no increase in the same in Government colleges seem to be policy matters undertaken by the individual decisive boards at the two levels.
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11. | Statements: Large number of people living in the low-lying areas has been evacuated during the last few days to safer places. The Government has rushed in relief supplies to the people living in the affected areas.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option E Explanation: Evacuating low-lying areas and rushing in relief to the affected areas clearly indicates that floods have occurred in the area.
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12. | Statements: It is the aim of the city's civic authority to get the air pollution reduced by 20% in the next two months. The number of asthma cases in the city is constantly increasing.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option B Explanation: The increase in number of asthma cases must have alerted the authorities to take action to control air pollution that triggers the disease. |
13. | Statements: The local co-operative credit society has decided to stop giving loans to farmers with immediate effect. A large number of credit society members have withdrawn major part of their deposits from the credit society.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option B Explanation: Clearly, withdrawal of funds by society members is bound to reduce the lending power of the society. |
14. | Statements: The employees of the biggest bank in the country have given an indefinite strike call starting from third of the next month. The employees of the Central Government have withdrawn their week long demonstrations.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option D Explanation: The employees of a bank going on strike and the government employees calling off their protest seem to be two independent events that might have been triggered by individual causes.
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15. | Statements: Police resorted to lathi-charge to disperse the unlawful gathering of large number of people. The citizens' forum called a general strike in protest against the police atrocities.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option A Explanation: Clearly, the people's mass protest against the police might have instigated the latter to indulge in lathi-charge to disperse the mob.
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16. | Statements: Majority of the citizens in the locality belongs to higher income group. The sales in the local super market are comparatively much higher than in other localities.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option B Explanation: The comparatively higher sales in a particular locality are indicative of the high paying capacity of the residents of that locality.
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17.Statements:
The life today is too fast, demanding and full of variety in all aspects which at times leads to stressful situations.
Number of suicide cases among teenagers is on increase.
A. | Statement I is the cause and statement II is its effect |
B. | Statement II is the cause and statement I is its effect |
C. | Both the statements I and II are independent causes |
D. | Both the statements I and II are effects of independent causes |
E. | Both the statements I and II are effects of some common cause |
Answer & Explanation
Answer: Option A
Explanation:
Stress in everyday life is a major cause of frustration among the youth and is bound to lead them to take harsh steps as suicide.
| 18.Statements: The government has decided to make all the information related to primary education available to the general public. In the past, the general public did not have access to all these information related to primary education.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option B Explanation: The government must have seen the unawareness of the people as a strong factor in the primary education programme being not successful. The step indicated in I must, thus, have been sought for as a remedy for the same. |
19. | Statements: The farmers have decided against selling their kharif crops to the Government agencies. The Government has reduced the procurement price of kharif crops starting from last month to the next six months.
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A. | Statement I is the cause and statement II is its effect | B. | Statement II is the cause and statement I is its effect | C. | Both the statements I and II are independent causes | D. | Both the statements I and II are effects of independent causes | E. | Both the statements I and II are effects of some common cause |
Answer & Explanation Answer: Option B Explanation: The reduction in procurement price of crops must have instigated the farmers not to sell their produce to Government agencies. |
20.Statements:
The performance of most of the students in final exam of class X in the schools run by the Government was excellent.
Many teachers of the Government schools left the school and joined private schools.
A. | Statement I is the cause and statement II is its effect |
B. | Statement II is the cause and statement I is its effect |
C. | Both the statements I and II are independent causes |
D. | Both the statements I and II are effects of independent causes |
E. | Both the statements I and II are effects of some common cause |
Answer & Explanation
Answer: Option D
Explanation:
The students of government schools performing well in the examinations and the teachers of government schools leaving their jobs to join private schools are two separate situations that must have been triggered by independent causes.
Statement and Conclusion
In each question below is given a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, then consider the two conclusions together and decide which of them logically follows beyond a reasonable doubt from the information given in the statement.
Give answer:
(A) If only conclusion I follows
(B) If only conclusion II follows
(C) If either I or II follows
(D) If neither I nor II follows and
(E) If both I and II follow.
1. | Statements: In Japan, the incidence of stomach cancer is very high, while that of bowel cancer is very low. But Japanese immigrate to Hawaii, this is reversed - the rate of bowel cancer increases but the rate of stomach cancer is reduced in the next generation. All this is related to nutrition - the diets of Japanese in Hawaii are different than those in Japan. Conclusions: The same diet as in Hawaii should be propagated in Japan also. Bowel cancer is less severe than stomach cancer.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: The statement neither propagates the diet of any of the countries nor compares the two types of cancer. So, neither I nor II follows.
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2. | Statements: The Government run company had asked its employees to declare their income and assets but it has been strongly resisted by employees union and no employee is going to declare his income. Conclusions: The employees of this company do not seem to have any additional undisclosed income besides their salary. The employees union wants all senior officers to declare their income first.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: Nothing about the details of the employees' income or the cause of their refusal to declare their income and assets, can be deduced from the given statement. So, neither I nor II follows.
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3. | Statements: Monitoring has become an integral part in the planning of social development programmes. It is recommended that Management Information System be developed for all programmes. This is likely to give a feedback on the performance of the functionaries and the efficacy with which services are being delivered. Conclusions: All the social development programmes should be evaluated. There is a need to monitor the performance of workers.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: According to the statement, monitoring and evaluation of social development programmes - their function, performance and efficiency - is absolutely essential. So, both I and II follow.
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4. | Statements: The T.V. programmes, telecast specially for women are packed with a variety of recipes and household hints. A major portion of magazines for women also contains the items mentioned above. Conclusions: Women are not interested in other things. An average woman's primary interest lies in home and specially in the kitchen.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: Clearly, nothing about 'other things' is mentioned in the statement. So, I does not follow, Also, since it is mentioned that programmes and magazines for women are stuffed with kitchen recipes and other household hints, it means that women have special interest in these areas. So, II follows.
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5. | Statements: The distance of 900 km by road between Bombay and Jafra will be reduced to 280 km by sea. This will lead to a saving of Rs. 7.92 crores per annum on fuel. Conclusions: Transportation by sea is cheaper than that by road. Fuel must be saved to the greatest extent
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: According to the statement, sea transport is cheaper than road transport in the case of route from Bombay to Jafra, not in all the cases. So, conclusion I does not follow. The statement stresses on the saving of fuel. So, conclusion II follows. |
| 6.Statements: The manager humiliated Sachin in the presence of his colleagues. Conclusions: The manager did not like Sachin. Sachin was not popular with his colleagues.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: The manager might have humiliated Sachin not because of his dislike but on account of certain negligence or mistake on his part. So, I does not follow. Also, nothing about Sachin's rapport with his colleagues can be deduced from the statement. So, II also does not follow.
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7. | Statements: Women's organisations in India have welcomed the amendment of the Industrial Employment Rules 1946 to curb sexual harassment at the work place. Conclusions: Sexual harassment of women at work place is more prevalent in India as compared to other developed countries. Many organisations in India will stop recruiting women to avoid such problems.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: The fact that a certain rule has been more welcomed in a certain country does not imply that the problem is more prevalent there. So, I does not follow. Also, the amendment seeks to discourage only sexual harassment of women and shall in no way discourage employment of women. So, II also does not follow.
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8. | Statements: Nation X faced growing international opposition for its decision to explode eight nuclear weapons at its test site. Conclusions: The citizens of the nation favoured the decision. Some powerful countries do not want other nations to become as powerful as they are.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: Neither the citizens response to the decision nor the reason for opposition by other nations can be deduced from the statement. So, neither I nor II follows.
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9. | Statements: In a highly centralised power structure, in which even senior cabinet ministers are prepared to reduce themselves to pathetic countries or yesmen airing views that are primarily intended to anticipate or reflect the Prime Minister's own performances, there can be no place for any consensus that is quite different from real or contrived unanimity of opinion, expressed through a well orchestrated endorsement of the leader's actions. Conclusions: The Ministers play safe by not giving anti-government views. The Prime Minister does not encourage his colleagues to render their own views.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: According to the statement, even senior cabinet ministers are always ready to conform to the Prime Minister's views. So, I follows. However, II contradicts the given statement and so does not follow.
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10. | Statements: National Aluminium Company has moved India from a position of shortage to self-sufficiency in the metal. Conclusions: Previously, India had to import aluminium. With this speed, it can soon become a foreign exchange earner.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: According to the statement, National Aluminium Company has moved India from a position of shortage in the past to self-sufficiency in the present. This means that previously, India had to import aluminium. So, I follows. Also, it can be deduced that if production increases at the same rate, India can export it in future. So, II also follows. |
11.Statements: Reading makes a full man, conference a ready man and writing an exact man. Conclusions: Pointed and precise expression comes only through extensive writing. Extensive reading makes a complete man.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: Clearly, I follows from the fact that writing makes an exact man. Conclusion II also directly follows from the statement.
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12. | Statements: Jade plant has thick leaves and it requires little water. Conclusions: All plants with thick leaves require little water. Jade plants may be grown in places where water is not in abundance.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: The statement talks of jade plants only and not 'all plants with thick leaves'. So, I does not follow. Also, since jade plants require little water, so they can be grown in places where water is not in abundance. So, II follows.
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13. | Statements: Use "Kraft" colours. They add colour to our life. - An advertisement. Conclusions: Catchy slogans do not attract people. People like dark colours.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: The slogan given in the statement is definitely a catchy one which indicates that catchy slogans do attract people. So, I does not follow. Nothing about people's preference for colours can be deduced from the statement. Thus, II also does not follow.
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14. | Statements: All those political prisoners were released on bail who had gone to jail for reasons other than political dharnas. Bail was not granted to persons involved in murders. Conclusions: No political - prisoner had committed murder. Some politicians were not arrested.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: According to the statement, the political prisoners can be divided into two groups - those who were released and those who were put in jail for political dharnas. However, no person involved in murder was released. This means that no political prisoner had committed murder. So, I follows. Clearly, II is not directly related to the statement and does not follow.
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15. | Statements: Modern man influences his destiny by the choice he makes unlike in the past. Conclusions: Earlier there were fewer options available to man. There was no desire in the past to influence the destiny.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option A Explanation: Clearly, I directly follows from the statement while II cannot be deduced from it. |
16. | Statements: Water supply in wards A and B of the city will be affected by about 50% on Friday because repairing work of the main lines is to be carried out. Conclusions: The residents in these wards should economise on water on Friday. The residents in these wards should store some water on the previous day.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: Clearly, the information has been given beforehand so that the residents can collect water on the previous day and use less water on Friday. So, both I and II follow.
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17. | Statements: People who speak too much against dowry are those who had taken it themselves. Conclusions: It is easier said than done. People have double standards.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option E Explanation: The statement clearly implies that it is easier to say than to do something and what people say is different from what they do. So, both I and II follow.
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18. | Statements: The national norm is 100 beds per thousand populations but in this state, 150 beds per thousand are available in the hospitals. Conclusions: Our national norm is appropriate. The state's health system is taking adequate care in this regard.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: Whether the national norm is appropriate or not cannot be said. So, I does not follow. However, more number of beds per thousand population are available in the state. So, II follows.
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19. | Statements: Our securities investments carry market risk. Consult your investment advisor or agent before investing. Conclusions: One should not invest in securities. The investment advisor calculates the market risk with certainty.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option B Explanation: Investment in securities involves risk. This does not mean that one should not invest in securities. So, I does not follow. Since the statement advises one to consult investment advisor before investing, so II follows.
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20. | Statements: Money plays a vital role in politics. Conclusions: The poor can never become politicians. All the rich men take part in politics.
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A. | Only conclusion I follows | B. | Only conclusion II follows | C. | Either I or II follows | D. | Neither I nor II follows | E. | Both I and II follow |
Answer & Explanation Answer: Option D Explanation: Neither the poor nor the rich, but only the role of money in politics is being talked about in the statement. So, neither I nor II follows. |
Statement and Argument
Each question given below consists of a statement, followed by two arguments numbered I and IL You have to decide which of the arguments is a 'strong' argument and which is a 'weak' argument.
Give answer:
(A) If only argument I is strong
(B) If only argument II is strong
(C) If either I or II is strong
(D) If neither I nor II is strong and
(E) If both I and II are strong.
| 1.Statement: Should cottage industries be encouraged in rural areas? Arguments: Yes. Rural people are creative. Yes. This would help to solve the problem of unemployment to some extent.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option B Explanation: Clearly, cottage industries need to be promoted to create more job opportunities for rural people in the villages themselves. The reason that rural people are creative is vague. So, only argument II holds.
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2. | Statement: Should young entrepreneurs be encouraged? Arguments: Yes. They will help in industrial development of the country. Yes. They will reduce the burden on employment market.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option E Explanation: Clearly, encouraging the young entrepreneurs will open up the field for the establishment of new industries. Thus, it shall help in industrial development and not only employ the entrepreneurs but create more job opportunities for others as well. So, both the arguments hold strong.
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3. | Statement: Should all the annual examinations up to Std. V be abolished? Arguments: Yes. The young students should not be burdened with such examinations which hampers their natural growth. No. The students will not study seriously as they will get automatic promotion to the next class and this will affect them in future.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option E Explanation: Clearly, neither the students can be burdened with studies at such a tender age, nor can they be left free to take studies casually, as this shall weaken their basic foundation. So, both the arguments follow.
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4. | Statement: Should Indian scientists working abroad be called back to India? Arguments: Yes. They must serve the motherland first and forget about discoveries, honours, facilities and all. No. We have enough talent; let them stay where they want.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option D Explanation: Clearly, every person must be free to work wherever he wants and no compulsion should be made to confine one to one's own country. So, argument I is vague. However, talented scientists can be of great benefit to the nation and some alternatives as special incentives or better prospects may be made available to them to retain them within their motherland. So, argument II also does not hold.
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5. | Statement: Should we scrap the system of formal education beyond graduation? Arguments: Yes. It will mean taking employment at an early date. No. It will mean lack of depth of knowledge.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option B Explanation: Clearly, argument I is vague because at present too, many fields are open to all after graduation. However, eliminating the post-graduate courses would abolish higher and specialized studies which lead to understanding things better and deeply. So, argument II is valid. |
6. | Statement: Should there be an upper age limit of 65 years for contesting Parliamentary/ Legislative Assembly elections? Arguments: Yes. Generally, people above the age of 65 lose their dynamism and will power. No. The life span is so increased that people remain physically and mentally active even up to the age of 80.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option D Explanation: The age of a person is no criterion for judging his mental capabilities and administrative qualities. So, none of the arguments holds strong.
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7. | Statement: Should new big industries be started in Mumbai? Arguments: Yes. It will create job opportunities. No. It will further add to the pollution of the city.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option C Explanation: Opening up of new industries is advantageous in opening more employment avenues, and disadvantageous in that it adds to the pollution. So, either of the arguments holds strong.
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8. | Statement: Should high chimneys be installed in industries? Arguments: Yes. It reduces pollution at ground level. No. It increases pollution in upper atmosphere.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option A Explanation: Pollution at ground level is the most hazardous in the way of being injurious to human and animal life. So, argument I alone holds.
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9. | Statement: Does India need so many plans for development? Arguments: Yes. Nothing can be achieved without proper planning. No. Too much time, money and energy is wasted on planning.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option A Explanation: Before indulging in new development programme it is much necessary to plan the exact target, policies and their implementation and the allocation of funds which shows the right direction to work. So, argument I holds strong. Also, planning ensures full utilization of available resources and funds and stepwise approach towards the target. So, spending a part of money on it is no wastage. Thus, argument II is not valid.
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10. | Statement: Should articles of only deserving authors be allowed to be published? Arguments: Yes. It will save a lot of paper which is in short supply. No. It is not possible to draw a line between the deserving and the undeserving.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option B Explanation: Clearly, I does not provide a strong reason in support of the statement. Also, it is not possible to analyze the really deserving and not deserving. So/argument II holds strong. |
11.Statement: Should colleges be given the status of a university in India? Arguments: Yes. Colleges are in a better position to assess the student's performance and therefore the degrees will be more valid. No. It is Utopian to think that there will not be nepotism and corruption in awarding degrees by colleges.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option D Explanation: Clearly, at the college level, all the students are assessed according to their performance in the University Exams and not on the basis of any criteria of a more intimate dealings with the students. So, argument I is vague. Also, at this level the awarding of degrees is impartial and simply based on his performance. So, argument II also does not hold.
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12. | Statement: Should the prestigious people who have committed crime unknowingly, be met with special treatment? Arguments: Yes. The prestigious people do not commit crime intentionally. No. It is our policy that everybody is equal before the law.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option B Explanation: The Constitution of India has laid down the doctrine of 'equality before the law'. So, argument II holds strong. Also, we cannot judge the intentions of a person behind committing a crime, So, argument I is vague.
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13. | Statement: Can pollution be controlled? Arguments: Yes. If everyone realizes the hazards it may create and cooperates to get rid of it, pollution may be controlled. No. The crowded highways, factories and industries and an ever-growing population eager to acquire more and more land for constructing houses are beyond control.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option C Explanation: The control of pollution, on one hand, seems to be impossible because of the ever-growing needs and the disconcern of the people but, on the other hand, the control is possible by a joint effort. So, either of the arguments will hold strong.
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14. | Statement: Should the railways in India be privatized in a phased manner like other public sector enterprises? Arguments: Yes. This is the only way to bring in competitiveness and provide better services to the public. No. This will pose a threat to the national security of our country as multinationals will enter into the fray.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option D Explanation: Privatization would no doubt lead to better services. But saying that this is the 'only way' is wrong. So, argument I does not hold. Argument II also seems to be vague.
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15. | Statement: Should internal assessment in colleges be abolished? Arguments: Yes. This will help in reducing the possibility of favouritism. No, teaching faculty will lose control over students.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option A Explanation: Abolishing the internal assessment would surely reduce favouritism on personal grounds because the teachers would not be involved in examination system so that they cannot extend personal benefits to anyone. So, argument I holds strong. But it will not affect the control of teaching faculty on students because still the teachers would be teaching them. So, argument II is vague. |
16.Statement: Should all the unauthorized structures in the city be demolished? Arguments: No. Where will the people residing in such houses live? Yes. This will give a clear message to general public and they will refrain from constructing unauthorized buildings.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option B Explanation: The demolition of unauthorized buildings would teach a lesson to the unscrupulous builders and also serve as a warning for the citizens not to indulge in such activities in the future. This is essential, as unauthorized constructions impose undue burden on the city's infrastructure. So, only argument II holds strong.
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17. | Statement: Should there be a maximum limit for the number of ministers in the Central Government? Arguments: No. The political party in power should have the freedom to decide the number of ministers to be appointed. Yes. The number of ministers should be restricted to a certain percentage of the total number of seats in the parliament to avoid unnecessary expenditure.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option B Explanation: Clearly, there should be some norms regarding the number of ministers in the Government, as more number of ministers would unnecessarily add to the Government expenditure. So, argument II holds strong; Also, giving liberty to the party in power could promote extension of unreasonable favour to some people at the cost of government funds. So, argument I does not hold.
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18. | Statement: Should foreign films be banned in India? Arguments: Yes. They depict an alien culture which adversely affects our values. No. Foreign films are of a high artistic standard.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option D Explanation: Clearly, foreign films depict the alien culture but this only helps in learning more. So, argument I does not hold. Also, the reason stated in argument II is not strong enough in contradicting the ban. So, it also does not hold.
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19. | Statement: Is buying things on instalments profitable to the customer? Arguments: Yes. He has to pay less. No, paying instalments upsets the family budget.
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A. | Only argument I is strong | B. | Only argument II is strong | C. | Either I or II is strong | D. | Neither I nor II is strong | E. | Both I and II are strong |
Answer & Explanation Answer: Option D Explanation: In buying things on instalments, a customer has to pay more as the interest is also included. So, argument I does not hold. Moreover, one who buys an item on instalments maintains his future budget accordingly as he is well acquainted with when and how much he has to pay, beforehand. So, argument II is also not valid. |
20.Statement: Should Doordarshan be given autonomous status?
Arguments:
Yes. It will help Doordarshan to have fair and impartial coverage of all important events.
No. The coverage of events will be decided by a few who may not have healthy outlook.
A. | Only argument I is strong |
B. | Only argument II is strong |
C. | Either I or II is strong |
D. | Neither I nor II is strong |
E. | Both I and II are strong |
Answer & Explanation
Answer: Option A
Explanation:
Clearly, the autonomous status of the Doordarshan will be a step towards giving it independence for an impartial coverage. Autonomous status does not mean that the coverage will be decided by a few. So, only argument I holds.
CREATIVITY Aptitude
Venn Diagram Answers
Which of the following diagrams indicates the best relation between Author, Lawyer and Singer ?
Answer: Option B
Solution: All the three are different professions.
Which of the following diagrams indicates the best relation between Judge, Thieves and Criminals ?
Answer: Option B
All the thieves are criminals while judge is different from these.
Which of the following diagrams indicates the best relation between Iron, Lead and Nitrogen ?
Answer: Option B
All these three elements are different from each other
Which of the following diagrams indicates the best relation between Pigeon, Bird and Dog ?
Answer: option A
All the pigeons are birds while dog is different from these.
Which of the following diagrams indicates the best relation between Earth, Sea and Sun ?
Option A
Sea is a part of Earth while Sun is different from these two.
Which of the following diagrams indicates the best relation between Hockey, Football and Cricket ?
Ans: opt b
All these three games are different from each other.
7. In an organization of pollution control board, engineers are represented by a circle, legal experts by a square and environmentalist by a triangle. Who is most represented in the board as shown in the following figure ?

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A. | Environmentalists | B. | Legal Experts | C. | Engineers with legal background | D. | Environmentalists with Engineering background |
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Ans: opt d
Environmentalists with Engineering background is most represented in the board.
8. In the following figure triangle represents 'girls', square players and circle-coach. Which part of the diagram represents the girls who are player but not coach?
Ans: Option B
part of the figure represents those girls who are players but not coach.
9. The diagram given below represents those students who play Cricket, Football and Kabaddi.

Study the diagram and identify the students who play all the three games. |
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Ans: Option D
S indicates those students who play all three games.
10. Study the diagram and identify the people who can speak only one language.
Ans: Option B
The regions represented by the letters K, J and I denote such people who can speak only one language.
11. In the following figure small square represents the persons who know English, triangle to those who know Marathi, big square to those who know Telugu and circle to those who know Hindi. In the different regions of the figures from 1 to 12 are given.

1. | How many persons can speak English and Hindi both the languages only ? |
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Ans: Option A
Number of persons who can speak English and Hindi both only is 5.
12. Study the diagram given below and answer each of the following questions.

A. | How many persons who take tea and wine but not coffee ? |
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Ans: Option B
17 persons take tea and wine but not coffee.
12.B. How many persons are there who take both tea and coffee but not wine ?
Ans: Answer: Option C
Explanation:
Number of persons was taken both tea and coffee but not wine is 7.
13.a. In the following diagram rectangle represents men, Triangle represents educated, Circle represents urban and square represents government employees.

1. | Which one of the following represents the educated men but not urban ? |
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OptionD
13.b. Which one of the following represents a woman who is urban as well as government employee ?
Ans: Option C
Why women are not mentioned in the diagram?
Ans: Rectangle represents men, therefore the area outside the rectangle should be WOMEN.
How to find the answer for the this question?
Ans = [Woman & Urban & Government Employee]
Conditions: Outside the rectangle(women) & Circle(urban) & Square(Govt. employee)
From the given diagram we can find that the value 10 is satisfies the above conditions.
14.a. .

1. | How many doctors are neither artists nor players ? |
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Option A
The number of doctors who are neither artists nor players is 17.
14.b.
| How many doctors are both players and artists ? |
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Option C
The number of doctors who are both players and artists is 3.
Cube And Cuboids
The following questions are based on the information given below:
There is a cuboid whose dimensions are 4 x 3 x 3 cm.
The opposite faces of dimensions 4 x 3 are coloured yellow.
The opposite faces of other dimensions 4 x 3 are coloured red.
The opposite faces of dimensions 3 x 3 are coloured green.
Now the cuboid is cut into small cubes of side 1 cm.
1.A
How many small cubes will have only two faces coloured ? |
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Option C
Number of small cubes having only two faces coloured = 6 from the front + 6 from the back + 2 from the left + 2 from the right= 16
1.B.
How many small cubes have three faces coloured ? |
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Option D
Such cubes are related to the corners of the cuboid and there are 8 corners.
Hence, the required number is 8.
1.C.
How many small cubes will have no face coloured ? |
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Option B
Number of small cubes have no face coloured = (4 - 2) x (3 - 2) = 2 x 1 = 2
1.D.
How many small cubes will have only one face coloured ? |
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Option A
Number of small cubes having only one face coloured = 2 x 2 + 2 x 2 + 2 x 1
= 4 + 4 + 2
= 10
2. The following questions are based on the information given below:
A cuboid shaped wooden block has 4 cm length, 3 cm breadth and 5 cm height.
Two sides measuring 5 cm x 4 cm are coloured in red.
Two faces measuring 4 cm x 3 cm are coloured in blue.
Two faces measuring 5 cm x 3 cm are coloured in green.
Now the block is divided into small cubes of side 1 cm each.
1. | How many small cubes will have will have three faces coloured ? |
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Option B
Such cubes are related to the corners of the cuboid and in the cuboid there are 8 corners.
Hence, the required number of small cubes is 8.
2. | How many small cubes will have only one face coloured ? |
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Option C
2 from the front + 2 from the back + 3 from the left + 3 from the right + 6 from the top + 6 from the bottom = 22
3. | How many small cubes will have no faces coloured ? |
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Option D
Required number of small cubes = (5 - 2) x (4 - 2) x (3 - 2)
= 3 x 2 x 1
= 6
4. | How many small cubes will have two faces coloured with red and green colours ? |
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Option A
Required number of small cubes = 6 from the top and 6 from the bottom = 12
3. The following questions are based on the information given below:
All the faces of cubes are painted with red colour.
The cubes is cut into 64 equal small cubes.
1. | How many small cubes have only one face coloured ? |
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Option D
Number of small cubes having only one face coloured = (x - 2)2 x No. of faces
= (4 - 2)2 x 6
= 24
2. | How many small cubes have no faces coloured ? |
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Option B
Explanation:

Number of small cubes having only one faces coloured = (x - 2)3
Here, x = side of big cube / side of small cube
x = 4 /1
x = 4
Required number = (4 -2)3
= 8
3. | How many small cubes are there whose three faces are coloured ? |
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Option B
Explanation:

Number of small cubes having three faces coloured = No. of corners = 8
4. | How many small cubes are there whose two adjacent faces are coloured red ? |
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Answer: Option D
Explanation:

Number of small cubes having two adjacent faces coloured red = (x - 2) x No. of edges
= (4 - 2) x 12
= 24
Dice
1.Two positions are dice are shown below. How many points will appear on the opposite to the face containing 5 points? 
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Answer: Option D
Explanation:
In these two positions one of the common face having 1 point is in the same position. Therefore according to rule (2). There will be 4 points on the required face.
2.Which digit will appear on the face opposite to the face with number 4? 
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Answer: Option A
Explanation:
Here the common faces with number 3, are in same positions. Hence 6 is opposite to 2 and 5 is opposite to 1. Therefore 4 is opposite to 3.
3.
Two positions of a dice are shown below. Which number will appear on the face opposite to the face with the number 5? 
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Answer: Option C
Explanation:
According to the rule no. (3), common faces with number 3, are in same positions. Hence the number of the opposite face to face with number 5 will be 6.
4.
Which number is on the face opposite to 6? 
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Answer: Option B
Explanation:
As the numbers 2, 3, 4 and 5 are adjacent to 6. Hence the number on the face opposite to 6 is 1.
5.
Two positions of a dice are shown below. When number '1' is on the top. What number will be at the bottom? 
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Answer: Option B
Explanation:
According to the rule (2) when 'one' is at the top, then 5 will be at the bottom.
6.
Two positions of a cube with its surfaces numbered are shown below. When the surface 4 touch the bottom, what surface will be on the top? 
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Answer: Option A
Explanation:
In these 2 positions one common face with number 1 is in the same position. Hence according to the rule number (3), 2 is opposite 6 and 3 is opposite to 5. Therefore opposite to 4 is 1.
7.
Here two positions of dice are shown. If there are two dots in the bottom, then how many dots will be on the top? 
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Answer: Option C
Explanation:
Here the common faces with 4 dots are in same positions.
Hence 2 will be opposite to 5.
8.
| Two positions of dice are shown below. How many points will be on the top when 2 points are at the bottom? 
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Answer: Option D
Explanation:
In these 2 positions of a dice, one common face having points 3 is in the same position. Hence according to rule (3), there will be 4 points on the required face.
9.
| Two positions of a cubical block are shown. When 5 is at the top which number will be at bottom? 
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Answer: Option C
Explanation:
In these 2 positions one common face with number 3, is in same position. Hence according to rule (3), 1 is opposite to 6 and 4 is opposite to 2. Therefore 5 is opposite to 3.
10.
| When the digit 5 is on the bottom then which number will be on its upper surface? 
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Answer: Option A
Explanation:
According to the rule no. (3), common faces with number 2 are in same positions. Hence when the digit 5 is on the bottom then 1 will on the upper surface.
11.
Observe the dots on the dice (one to six dots) in the following figures. How many dots are contained on the face opposite to the containing four dots? 
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Answer: Option A
Explanation:
Here one of the two common faces (5) is in the same position, then according to the rule no (2) the remaining face with the 4 dots will be opposite to face with dots 2.
12.
Two positions of a dice are shown below. When 3 points are at the bottom, how many points will be at the top? 
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Answer: Option C
Explanation:
According to the rule (2) when 3 points are at the bottom then 4 points will be at the top.
13.
QUESTION IS NOT AVAILABLE
14. The figure given on the left hand side in each of the following questions is folded to form a box. Choose from the alternatives (1), (2), (3) and (4) the boxes that is similar to the box formed.
1. | 
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A. | 2 and 3 only | B. | 1, 3 and 4 only | C. | 2 and 4 only | D. | 1 and 4 only |
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Answer: Option B
Explanation:
No answer description available for this question
15.
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A. | 1 and 4 only | B. | 3 and 4 only | C. | 1 and 2 only | D. | 2 and 3 only |
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Ans: Option A
16.
Ans: Option A
17.
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A. | 1 and 3 only | B. | 2 and 4 only | C. | 2 and 3 only | D. | 1, 2, 3 and 4 |
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Ans: Option D
18. Six dice with upper faces erased are as shows.

The sum of the numbers of dots on the opposite face is 7.
1. | If even numbered dice have even number of dots on their top faces, then what would be the total number of dots on the top faces of their dice? |
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Answer: Option C
Explanation:
Even numbered dice are: (II), (IV) and (VI)
No. of dots on the top face of (II) dice = 6
No. of dots on the top face of (IV) dice = 6
and No. of dots on the top face of (VI) dice = 6
Therefore Required total = 6 + 6 + 6 = 18
Even numbered dice are: (II), (IV) and (VI)No. of dots on the top face of (II) dice = 6No. of dots on the top face of (IV) dice = 6and No. of dots on the top face of (VI) dice =6Therefore Required total = 6 + 6 + 6 = 18
2. | If the numbered dice have even number of dots on their top faces, then what would be the total number of dots on the top faces of their dice? |
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Answer: Option A
Explanation:
Odd numbered dice are : (II), (III) and (V)
No. of dots on the top faces of these dice are 2, 2 and 4 respectively.
Required total = 2 + 2 + 4 = 8
3. | If dice (I), (II) and (III) have even number of dots on their bottom faces and the dice (IV), (V) and (VI) have odd number of dots on their top faces, then what would be the difference in the total number of top faces between there two sets? |
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Answer: Option D
Explanation:
No. of faces on the top faces of the dice (I), (II) and (III) are 5, 1 and 5 respectively.
Therefore, Total of these numbers = 5 + 1 + 5 = 11
No. of dots on the top faces of the dice (IV), (V) and (VI) are 1, 3 and 1 respectively.
Therefore, Total of these numbers = 1 + 3 + 1 = 5
Required difference = 11 - 5 = 6
Odd numbered dice are : (II), (III) and (V)
No. of dots on the top faces of these dice are 2, 2 and 4 respectively.
Required total = 2 + 2 + 4 = 8
4. | If the even numbers of dice have odd number of dots on their top faces and odd numbered dice have even of dots on their bottom faces, then what would be the total number of dots on their top faces? |
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Answer: Option C
Explanation:
No. of dots on the top faces of the dice (II), (IV) and (VI) are 1, 1 and 1 respectively.
No. of dots on the top faces of the dice (I), (III) and (V) are 5, 5 and 3 respectively.
Required total = 5 + 5 + 3 + 1 + 1 + 1 = 16
5. | If the dice (I), (II) and (III) have even number of dots on their bottom faces, then what would be the total number of dots on their top faces? |
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Answer: Option B
Explanation:
No. of dots on the top faces of dice (I), (II) and (III) are 5, 1 and 5 respectively.
Required total = 5 + 1 + 5 = 11
Cubes and Dice Answers
The sheet of paper shown in the figure (X) given on the left hand side, in each problem, is folded to form a box. Choose from amongst the alternatives (1), (2), (3) and (4), the boxes that are similar to the box that will be formed.
1.
Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1 and 2 only | B. | 2 and 3 only | C. | 2 and 4 only | D. | 1, 2, 3 and 4 |
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Answer: Option D
Explanation:
The fig. (X) is similar to Form II. So, when a cube is formed by folding the sheet shown in fig. (X), then the two half-shaded faces lie opposite to each other and one. of the three blank faces appears opposite to the face bearing a dot. Clearly, each one of the four cubes shown in figures (1), (2), (3) and (4) can be formed by folding the sheet shown in fig. (X).
2.
Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1 only | B. | 1 and 3 only | C. | 1, 3 and 4 only | D. | 1, 2, 3 and 4 |
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Answer: Option C
Explanation:
When the sheet in fig. (X) is folded, then one of the faces of the cube formed will be of the form
and this face will lie opposite the face bearing a square. Also, one of the blank faces lies opposite another blank face and the third blank face lies opposite the face bearing an '=' sign. Clearly, all the three blank faces cannot appear adjacent to each other. So, the cube shown in fig. (2) which has all the three blank faces adjacent to each other cannot be formed. Hence, only the cubes shown in figures A, C and D can be formed.
3.
Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1 only | B. | 2 only | C. | 1 and 3 only | D. | 1, 2, 3 and 4 only |
4. Choose the box that is similar to the box formed from the given sheet of paper (X). 
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Answer: Option B Explanation: The fig. (X) is similar to the Form III. So, when the sheet in fig. (X) is folded to form a cube, then the half-shaded face appears opposite to the face bearing a rhombus, the face with a black circle appears opposite to one of the two blank faces and the face with a '+' sign appears opposite to the other blank face. Clearly, the cubes shown in figures (1) and (4) cannot be formed since they have the half-shaded face adjacent to the face bearing the rhombus. Also, though the cube shown in fig. (3) has faces that can appear adjacent to each other but the cube formed by folding the sheet in fig. (X) cannot be rotated to form fig. (3). Hence, the cube in fig. (3) cannot be formed. Thus, only the cube shown in fig. (2) can be formed. 5. | Choose the box that is similar to the box formed from the given sheet of paper (X). 
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Answer: Option A Explanation: The fig. (X) is similar to the Form II. So, when the sheet shown in fig. (X) is folded to form a cube then the two half-shaded faces lie opposite to each other, the face bearing a square lies opposite to one of the two blank faces and the face bearing a circle lies opposite to the other blank face. Therefore, the cubes shown in figures (2) and (3) which have the two half-shaded faces adjacent to each other, cannot be formed by folding the sheet shown in fig. (X). Also, though the cube shown in fig. (4) has faces that can appear adjacent to each other but the cube formed by folding the sheet in fig. (X) cannot be rotated to form the cube in fig. (4). Hence, only the cube in fig. (1) can be formed. 6. Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 2 and 3 only | B. | 1, 3 and 4 only | C. | 2 and 4 only | D. | 1 and 4 only |
Answer: Option B Explanation: The fig. (X) is similar to the Form V. So, when the sheet in fig. (X) is folded to form a cube, then the face bearing a dot lies opposite to one of the shaded faces. Therefore, the cube shown in fig. (2) which has both the shaded faces adjacent to the face bearing the dot, cannot be formed. Hence, the cubes shown in figures (1), (2) and (4) can be formed. 7. Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1, 2 and 3 only | B. | 2 and 3 only | C. | 1, 3 and 4 only | D. | 2, 3 and 4 only |
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Answer: Option D Explanation: The fig. (X) is similar to the Form VII. So, when a cube is formed by folding the sheet shown in fig. (X), then is one of the faces of the cube and this face lies opposite to a blank face. Also, a face bearing a square lies opposite to another blank face. The remaining two blank faces lie opposite to each other. Clearly, in the cube shown in fig. (1), the face consisting of the four symbols is not the same as that formed (as shown above). Hence, the cube in fig. (1) cannot be formed. 8. Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1 and 2 only | B. | 1, 2 and 3 only | C. | 1 and 3 only | D. | 1, 2, 3 and 4 |
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Answer: Option A Explanation: The fig. (X) is similar to the Form VI. So, when a cube is formed by folding the sheet shown in fig. (X), then is one of the faces of the cube and this face lies opposite to a blank face. Also, a face bearing a circle lies opposite to one bearing a dot. Clearly, this cube does not have faces as shown in the cubes in figures (3) and (4). Hence, only the cubes shown in figures (1) and (2) can be formed. 9. Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1 and 3 only | B. | 2, 3 and 4 only | C. | 2 only | D. | 3 and 4 only |
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Answer: Option C Explanation: The fig. (X) is similar to the Form I. So, when the sheet in fig. (X) is folded to form a cube, then the completely shaded face lies opposite to the half shaded face. Therefore, the cubes shown in figures (1) and (3) which have the completely shaded face adjacent to the half-shaded face cannot be formed. Since Fig 4 does't have at-least one shaded face, it cannot be formed. Hence, only the cubes in figure (2) can be formed. 10. Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1 and 2 only | B. | 1, 2 and 4 only | C. | 1 and 4 only | D. | 1, 2 and 3 only |
Answer: Option B Explanation: The fig. (X) is similar to the Form V. So, when the sheet shown in fig. (X) is folded to form a cube then the shaded face lies opposite to one of the blank faces, the face bearing a circle lies opposite to another blank face and the face bearing a shaded square lies opposite to the third blank face. Thus, each one of the cubes shown in figures (1), (2) and (4) can be formed. Also, though the cube shown in fig. (3) has faces that can appear adjacent to each other but the cube formed by folding the sheet in fig. (X) cannot be rotated to form fig. (3). Hence, the cube in fig.(3) cannot be formed. 11. Four usual dice are thrown on the ground. The total of numbers on the top faces of these four dice is 13 as the top faces showed 4, 3, 1 and 5 respectively. What is the total of the faces touching the ground? |
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Answer: Option C Explanation: In a usual dice, the sum of the numbers on any two opposite faces is always 7. Thus, 1 is opposite 6, 2 is opposite 5 and 3 is opposite 4. Consequently, when 4, 3, 1 and 5 are the numbers on the top faces, then 3, 4, 6 and 2 respectively are the numbers on the face touching the ground. The total of these numbers = 3 + 4 + 6 + 2 = 15.
12. In a dice a, b, c and d are written on the adjacent faces, in a clockwise order and e and f at the top and bottom. When c is at the top, what will be at the bottom? 
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Answer: Option A Explanation: Clearly, the six faces are labelled as Face I -> a, Face IV -> b, Face III -> c, Face II -> d, Face V -> e, Face VI -> f Therefore 'a' appears opposite 'c'. Hence, when 'c' is at the top, then 'a' will be at the bottom. 13. Which of the following finished patterns can be obtained from the piece of cardboard (X) shown below? 
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Answer: Option A Explanation: The pattern on fig. (X) and also the fact that the faces are rectangle, indicate that only fig. (1) can be obtained by folding fig. (X). 14. Three different positions X, Y and Z of a dice are shown in the figures given below. Which number lies at the bottom face in position X? 
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Answer: Option B Explanation: From positions X and Y we conclude that 1, 5, 6 and 3 lie adjacent to 4. Therefore, 2 must lie opposite 4. From positions Y and Z we conclude that 4, 3, 2 and 5 lie adjacent to 6. Therefore, 1 must lie opposite 6. Thus, 2 lies opposite 4, 1 lies opposite 6 and consequently 5 lies opposite 3. As analysed above, the number on the face opposite 5 is 3. In position X, since 5 lies on the top, therefore 3 must lie at the bottom face. 15. A dice is numbered from 1 to 6 in different ways. If 1 is opposite to 5 and 2 is opposite to 3, then |
A. | 4 is adjacent to 3 and 6 | B. | 2 is adjacent to 4 and 6 | C. | 4 is adjacent to 5 and 6 | D. | 6 is adjacent to 3 and 4 |
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Answer: Option B Explanation: If 1 is opposite to 5 and 2 is opposite to 3, then 4 definitely lies opposite to 6. Therefore, 2 cannot lie opposite to any of the two numbers - 4 or 6. Hence, 2 necessarily lies adjacent to both 4 and 6. 16. When the following figure is folded to form a cube, how many dots lie opposite the face bearing five dots? 
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Answer: Option C Explanation: The given figure is similar to Form III. Therefore, when this figure is folded to form a cube then the face bearing three dots will lie opposite the face bearing five dots. 17. Choose the box that is similar to the box formed from the given sheet of paper (X). 
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A. | 1 only | B. | 1, 2 and 3 only | C. | 2 and 3 only | D. | 1, 2, 3 and 4 Answer: Option D Explanation: The fig. (X) is similar to the Form V. So, when the sheet in fig. (X) is folded to form a cube, then the face bearing a dot appears opposite to a blank face, the face bearing a '+' sign appears opposite to another blank face and the face bearing a circle appears opposite to the third blank face. Clearly, all the four cubes shown in figures (1), (2), (3) and (4) can be formed.
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18. What number is opposite 3 in the figure shown below? The given two positions are of the same dice whose each surface bears a number among 1, 2, 3, 4, 5 and 6. 
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Answer: Option C Explanation: From figures (i) and (ii), we conclude that 2, 6, 1 and 4 appear adjacent to 5. Therefore, 3 must appear opposite 5, Conversely, the number opposite 3 is 5. 19. Three different positions of a dice are shown below. How many dots lie opposite 2 dots? 
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Answer: Option C Explanation: From figures (ii) and (iii), we conclude that 1, 6, 3 and 4 dots lie adjacent to 5 dots. Therefore, 2 dots must lie opposite 5 dots. Conversely, 5 dots must lie opposite 2 dots. 20. A dice is thrown four times and its four different positions are shown below. Find the number on the face opposite the face showing 2. 
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Answer: Option C Explanation: From figures (i), (ii) and (iv) We conclude that 6, 4, 3 and 1 lie adjacent to 2. Hence, 5 must lie opposite 2. 21. Two positions of a dice are shown. When 4 is at the bottom, what number will be on the top? 
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Answer: Option A Explanation:From figures (i) and (ii), we conclude that 2, 3, 5 and 6 he adjacent to 1. Therefore, 4 lies opposite 1. Hence, when 4 is at the bottom, then1 must be on the top. 22. Two positions of a parallelepiped are shown below. When the number 3 will be on the top side, then which number will be at the bottom? 
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Answer: Option C Explanation: The number 2 is common to both the figures. We assume the parallelepiped in fig. (ii) to be rotated so that 2 appears at the same position as in fig. (i) i.e. on the RHS face and the numbers 6 and 3 move to the faces hidden behind the numbers 1 and 5 respectively [in fig. (i)]. Then, the combined figure will have 1 opposite 6 and 5 opposite 3. Thus, when 3 will be on the top, then 5 will appear at the bottom. 25. If the total number of dots on opposite faces of a cubical block is always 7, find the figure which is correct. 
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Answer: Option B Explanation: Since the total number of dots on opposite faces is always 7, therefore, 1 dot appears opposite 6 dots, 2 dots appear opposite 5 dots and 3 dots appear opposite 4 dots.
Figure Matrix1.Select a suitable figure from the four alternatives that would complete the figure matrix. 
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Answer: Option B Explanation: The third figure in each row comprises of parts which are not common to the first two figures. |
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2.
Select a suitable figure from the four alternatives that would complete the figure matrix. 
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Answer: Option A Explanation: The number of components in each row either increases or decreases from left to right. In the third row, it increases.
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3.
Select a suitable figure from the four alternatives that would complete the figure matrix. 
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Ans: Option A
In each row, the second figure is obtained from the first figure by increasing the number of smaller elements by one and the third figure is obtained from the second figure by increasing the number of smaller elements by one.
4.
Select a suitable figure from the four alternatives that would complete the figure matrix. 
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Ans: Option C
The third figure in each row comprises of parts which are not common to the first two figures.
5.Select a suitable figure from the four alternatives that would complete the figure matrix. 
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Ans: Option A
EXPLANATION: Each row (as well as each column) contains a figure consisting of a circle and two line segments, a figure consisting of a circle and three line segments and a figure consisting of a circle and four line segments.
6.
Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option A
In each row, the second figure is obtained from the first figure by reversing the direction of the RHS arrow and the third figure is obtained from the second figure by reversing the direction of both the arrows.
7.
Select a suitable figure from the four alternatives that would complete the figure matrix. 
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Answer: Option B Explanation: In each row, the figures are getting laterally inverted in each step. The number of components or the quantities are either increasing or decreasing from left to right sequentially. 8. Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option C
The second figure is obtained from the first figure by moving the line segment to the opposite side of the square boundary and replacing it with two similar line segments. Also, the element in the lower-left corner gets replaced by two similar elements - one placed in the upper-left and the other placed in the lower-right corner.
9.Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option D
In each row, there are 3 types of shadings of circles - a circle is unshaded, another circle has its right half shaded with vertical lines and yet another circle has its upper half shaded with horizontal lines. There are three specified positions of the two triangles each of which is used only once in a row. Also, two of the figures in each row have one triangle shaded.
10.
Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option C
In each row, the third figure is a collection of the common elements (line segments) of the first and the second figures.
11.
Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option B
The two parts of the first figure are rearranged and joined along the longer sides. The common side is then lost to form the second figure.
12.
| Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option C
The second figure is a part of the first figure (but is not exactly the same as the first figure).
13. QUESTION UN AVAILABLE
14.Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option A
In each row, the central part of the first figure rotates either 90o CW or 90o ACW to form the central part of the second figure and the central part of the first figure rotates through 180o to form the central part of the third figure. Also, in each row, there are 3 types of side elements - rectangles, circles and triangles.
15.Select a suitable figure from the four alternatives that would complete the figure matrix. 
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ANS: Option B
In each column, the third figure (lowermost figure) contains one less number of hexagons as the first figure (uppermost figure) and the same number of trees as the second figure (middle figure).
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Select a suitable figure from the four alternatives that would complete the figure matrix.  |
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ANS: Option B
There are 3 types of faces, 3 types of bodies, 3 types of hands and 3 types of legs, each of which is used only once in a single row. So, the features which have not been used in the first two figures of the third row would combine to produce the missing figure.
Seating Arrangement
1.A. Six girls are sitting in a circle facing to the centre of the circle. They are P, Q, R, S, T and V. T is not between Q and S but some other one. P is next to the left of V. R is 4th to the right of P.
Which of the following statement is not true ? |
A. | S is just next to the right to R | B. | T is just next to the right of V | C. | R is second to the left of T | D. | P is second to the right of R |
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ANS: Option C

1.B.If P and R interchange their positions then which of the following pair will sit together ? |
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ANS: Option C
After changing the position of P and R
2. In a class there are seven students (including boys and girls) A, B, C, D, E, F and G. They sit on three benches I, II and III. Such that at least two students on each bench and at least one girl on each bench. C who is a girl student, does not sit with A, E and D. F the boy student sits with only B. A sits on the bench I with his best friends. G sits on the bench III. E is the brother of C.
1. | How many girls are there out of these 7 students ? |
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ANS: Option B

The number of girls is either 3 or 4.
2.B.
Which of the following is the group of girls ? |
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ANS: Option C


BCD are the group of girls.
3. A, B, C, D, E, F and G are sitting in a row facing North :
F is to the immediate right of E.
E is 4th to the right of G.
C is the neighbour of B and D.
Person who is third to the left of D is at one of ends.
1. | Who are to the left of C ? |
A. | Only B | B. | G, B and D | C. | G and B | D. | D, E, F and A |
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Answer: Option C
Explanation:

G an B are to the left of C.
3.b.
Who are the neighbours of B ? |
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ANS: Option B

C and G are the neighbours of B.
4. Each of these questions are based on the information given below :
8 persons E, F, G, H, I, J, K and L are seated around a square table - two on each side.
There are 3 ladies who are not seated next to each other.
J i between L and F.
G is between I and F.
H, a lady member is second to the left of J.
F, a male member is seated opposite to E, a lady member.
There is a lady member between F and I.
1.Who among the following is to the immediate left of F ? |
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ANS: Option C

J is to the immediate left of F.
4.b.
How many persons are seated between K and F ? |
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Option C

Three persons are seated between K and F(H, L and J) or E, I and G.
5. A, B, C, D, E, F and G are sitting in a row facing North :
F is to the immediate right of E.
E is 4th to the right of G.
C is the neighbour of B and D.
Person who is third to the left of D is at one of ends.
1. | Who are to the left of C ? |
A. | Only B | B. | G, B and D | C. | G and B | D. | D, E, F and A |
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ANS: Option C

6.Which of the following statement is not true ? |
A. | E is to the immediate left of D | B. | A is at one of the ends | C. | G is to the immediate left of B | D. | F is second to the right of D |
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ANS: Option A

7. Each of these questions are based on the information given below:
A ,B, C, D and E are five men sitting in a line facing to south - while M, N, O, P and Q are five ladies sitting in a second line parallel to the first line and are facing to North.
B who is just next to the left of D, is opposite to Q.
C and N are diagonally opposite to each other.
E is opposite to O who is just next right of M.
P who is just to the left of Q, is opposite to D.
M is at one end of the line.
7.aWho is sitting third to the right of O ? |
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ANS: Option B

7.b.
Which of the following pair is diagonally opposite to each other ? |
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7.b. ANS: Option D

8. Six friends P, Q, R, S, T and U are sitting around the hexagonal table each at one corner and are facing the centre of the hexagonal. P is second to the left of U. Q is neighbour of R and S. T is second to the left of S.
Which one is sitting opposite to P ? |
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8.a. ANS: Option D

8.b.
Who is the fourth person to the left of Q ? |
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ANS: Option A

Direction Sense Test
1.
One morning Udai and Vishal were talking to each other face to face at a crossing. If Vishal's shadow was exactly to the left of Udai, which direction was Udai facing? |
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Answer: Option C
Explanation:

2.
Y is in the East of X which is in the North of Z. If P is in the South of Z, then in which direction of Y, is P? |
A. | North | B. | South | C. | South-East | D. | None of these |
Answer: Option D Exp: |
P is in South-West of Y.
3.
If South-East becomes North, North-East becomes West and so on. What will West become? |
A. | North-East | B. | North-West | C. | South-East | D. | South-West |
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Answer: Option C
Exp:

It is clear from the diagrams that new name of West will become South-East.
4.
A man walks 5 km toward south and then turns to the right. After walking 3 km he turns to the left and walks 5 km. Now in which direction is he from the starting place? |
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Ans: Option D
Exp:

5.
Rasik walked 20 m towards north. Then he turned right and walks 30 m. Then he turns right and walks 35 m. Then he turns left and walks 15 m. Finally he turns left and walks 15 m. In which direction and how many metres is he from the starting position? |
A. | 15 m West | B. | 30 m East | C. | 30 m West | D. | 45 m East |
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Ans: Option D
Ans:

6.
Rahul put his timepiece on the table in such a way that at 6 P.M. hour hand points to North. In which direction the minute hand will point at 9.15 P.M. ? |
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Answer: Option D
Explanation:

At 9.15 P.M., the minute hand will point towards west.
7.
| A boy rode his bicycle Northward, then turned left and rode 1 km and again turned left and rode 2 km. He found himself 1 km west of his starting point. How far did he ride northward initially? |
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Answer: Option B
Explanation:

The boy rode 2 km. Northward.
8.One evening before sunset Rekha and Hema were talking to each other face to face. If Hema's shadow was exactly to the right of Hema, which direction was Rekha facing? |
A. | North | B. | South | C. | East | D. | Data is inadequate |
Answer: Option B Explanation: 
In the evening sun sets in West. Hence then any shadow falls in the East. Since Hema's shadow was to the right of Hema. Hence Rekha was facing towards South. 9. Starting from the point X, Jayant walked 15 m towards west. He turned left and walked 20 m. He then turned left and walked 15 m. After this he turned to his right and walked 12 m. How far and in which directions is now Jayant from X? |
A. | 32 m, South | B. | 47 m, East | C. | 42 m, North | D. | 27 m, South |
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Answer: Option A Explanation: 
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10.
Two cars start from the opposite places of a main road, 150 km apart. First car runs for 25 km and takes a right turn and then runs 15 km. It then turns left and then runs for another 25 km and then takes the direction back to reach the main road. In the mean time, due to minor break down the other car has run only 35 km along the main road. What would be the distance between two cars at this point? |
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Answer: Option A
Explanation:

11.
K is 40 m South-West of L. If M is 40 m South-East of L, then M is in which direction of K? |
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Answer: Option A
Explanation:

Hence M is in the East of K.
12.
A man walks 2 km towards North. Then he turns to East and walks 10 km. After this he turns to North and walks 3 km. Again he turns towards East and walks 2 km. How far is he from the starting point? |
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Answer: Option B
Explanation:

13.
The length and breadth of a room are 8 m and 6 m respectively. A cat runs along all the four walls and finally along a diagonal order to catch a rat. How much total distance is covered by the cat? |
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Answer: Option C
Explanation:

14.
| One morning sujata started to walk towards the Sun. After covering some distance she turned to right then again to the right and after covering some distance she again turns to the right. Now in which direction is she facing? |
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Answer: Option A
Explanation:

Hence finally Sujata will face towards North.
15.
One morning after sunrise, Vimal started to walk. During this walking he met Stephen who was coming from opposite direction. Vimal watch that the shadow of Stephen to the right of him (Vimal). To Which direction Vimal was facing? |
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Answer: Option C
Explanation:
Sun rises in the east. So the shadow of a man will always falls towards the west. Since the shadow of Stephen is to the right of Vimal. Hence Vimal is facing towards South.
16.
Golu started from his house towards North. After covering a distance of 8 km. he turned towards left and covered a distance of 6 km. What is the shortest distance now from his house? |
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Answer: Option A
Explanation:

17.
P started from his house towards west. After walking a distance of 25 m. He turned to the right and walked 10 m. He then again turned to the right and walked 15 m. After this he is to turn right at 135o and to cover 30 m. In which direction should he go? |
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Answer: Option C
Explanation:

Hence he should go in the South-West direction.
18.
| X started to walk straight towards south. After walking 5 m he turned to the left and walked 3 m. After this he turned to the right and walked 5 m Now to which direction X is facing? |
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Answer: Option B
Explanation:

Hence X will face in the end towards South.
19. Dev, Kumar, Nilesh, Ankur and Pintu are standing facing to the North in a playground such as given below:
Kumar is at 40 m to the right of Ankur.
Dev is are 60 m in the south of Kumar.
Nilesh is at a distance of 25 m in the west of Ankur.
Pintu is at a distance of 90 m in the North of Dev.
1. | Which one is in the North-East of the person. Who is to the left of Kumar? |
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Answer: Option D
Explanation:

Ankur is in the left of Kumar. Hence Pintu is in North-East of Ankur.
2. If a boy starting from Nilesh, met to Ankur and then to Kumar and after this he to Dev and then to Pintu and whole the time he walked in a straight line, then how much total distance did he cover? |
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Answer: Option A
Explanation:
Required distance = 25 m + 40 m + 60 m + 90 m
Required distance = 215 m
20. Each of the following questions is based on the following information:
Six flats on a floor in two rows facing North and South are allotted to P, Q, R, S, T and U.
Q gets a North facing flat and is not next to S.
S and U get diagonally opposite flats.
R next to U, gets a south facing flat and T gets North facing flat.
1. | If the flats of P and T are interchanged then whose flat will be next to that of U? |
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Answer: Option C
Explanation:

Hence flat R will be next to U.
2.
Which of the following combination get south facing flats? |
Answer: Option C Explanation: 
Hence URP flat combination get south facing flats. 3. | The flats of which of the other pair than SU, is diagonally opposite to each other? |
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Answer: Option A Explanation: 
Hence QP is diagonally opposite to each other. 4. | Whose flat is between Q and S? |
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Answer: Option A Explanation: 
Hence flat T is between Q and S. 21. Each of the following questions is based on the following information: 8-trees → mango, guava, papaya, pomegranate, lemon, banana, raspberry and apple are in two rows 4 in each facing North and South. Lemon is between mango and apple but just opposite to guava. Banana is at one end of a line and is just next in the right of guava or either banana tree is just after guava tree. Raspberry tree which at one end of a line, is just diagonally opposite to mango tree.
1. Which tree is just opposite to raspberry tree? |
A. | Papaya | B. | Pomegranate | C. | Papaya or Pomegranate | D. | Data is inadequate |
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Answer: Option C Explanation: 
2. Which tree is just opposite to banana tree? |
A. | Mango | B. | Pomegranate | C. | Papaya | D. | Data is inadequate |
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Answer: Option A Explanation: 
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22. Each of the following questions is based on the following information:
A # B means B is at 1 metre to the right of A.
A $ B means B is at 1 metre to the North of A.
A * B means B is at 1 metre to the left of A.
A @ B means B is at 1 metre to the south of A.
In each question first person from the left is facing North.
1. | According to X @ B * Y, Y is in which direction with respect to X? |
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Answer: Option D
Explanation:
According to X @ B * Y

Hence Y is in South-West of X.
2.According to P # R $ A * U, in which direction is U with respect to P? |
Answer: Option C Explanation: According to P # R $ A * U 
Hence U is in North direction with respect to P.
Mirror And Water Images1.Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
ANS: Option B 2. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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Answer: Option B 3. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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Answer: Option D 4. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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ANS: Option C
5. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
ANS: Option D 6. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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ANS: Option C 7. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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ANS: Option D 8. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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ANS: Option C 9.
| Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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ANS: Option A 10. Choose the correct mirror image of the given figure (X) from amongst the four alternatives. 
(X) (1) (2) (3) (4) |
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ANS: Option B 11.Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option D
12. Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option C
13. Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option D
14. Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option C
15. Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option B
16. Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option B
17. ANS: Option A
18. Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option C 19. | Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option A 20. Choose the correct water image of the given figure (X) from amongst the four alternatives. 
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ANS: Option D
Embedded Images
Find out the alternative figure which contains figure (X) as its part.

(X) (1) (2) (3) (4) |
Answer: Option D Explanation: 
Find out the alternative figure which contains figure (X) as its part.

(X) (1) (2) (3) (4) |
Answer: Option B Explanation: 
| 3.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

4.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

5. | Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option B Explanation: 
6. | Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

7.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option D Explanation: 
8.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option D Explanation: 
9.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option A Explanation: 
10.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option B Explanation: 
11.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option B Explanation: 
Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option A Explanation: 
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13.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option C Explanation: 
14.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

15. | Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

16.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option A Explanation: 
17.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option C Explanation: 
18.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
A. | 1 | B. | 2 | C. | 3 | D. | 4 | | Answer: Option C Explanation: 
19.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
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Answer: Option C Explanation: 
20.Find out the alternative figure which contains figure (X) as its part. 
(X) (1) (2) (3) (4) |
Answer: Option B Explanation: 
Grouping Of Images1.Group the given figures into three classes using each figure only once. 
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A. | 7,8,9 ; 2,4,3 ; 1,5,6 | B. | 1,3,2 ; 4,5,7 ; 6,8,9 | C. | 1,6,8 ; 3,4,7 ; 2,5,9 | D. | 1,6,9 ; 3,4,7 ; 2,5,8 |
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Answer: Option D Explanation: 1, 6, 9, are all triangles. 3, 4, 7 are all four-sided figures. 2, 5, 8 are all five-sided figures. 2.Group the given figures into three classes using each figure only once. 
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A. | 1,4,7 ; 2,5,8 ; 3,6,9 | B. | 1,4,7 ; 2,5,9 ; 3,6,7 | C. | 1,3,4 ; 2,5,8 ; 6,7,9 | D. | 1,2,3 ; 4,5,6 ; 7,8,9 |
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Answer: Option A Explanation: 1, 4, 7 are all (two-dimensional) quadrilaterals. 2, 5, 8 are all three-dimensional figures. 3, 6, 9 are all (two-dimensional) triangles. |
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3.Group the given figures into three classes using each figure only once. 
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A. | 1,5,7 ; 2,4,6 ; 3,9,8 | B. | 1,5,7 ; 2,4,8 ; 3,6,9 | C. | 1,4,7 ; 2,5,8 ; 3,6,9 | D. | 1,7,9 ; 3,5,8 ; 2,4,6 |
Answer: Option B Explanation: 1, 5, 7 have two similar elements, one inside the other. 2, 4, 8 have one element placed inside a different element. 3, 6, 9 have two similar elements, one inside the other and the area between the two elements is shaded. 4. Group the given figures into three classes using each figure only once. 
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A. | 1,2,6 ; 3,4,7 ; 5 | B. | 1,3 ; 2,6 ; 4,5,7 | C. | 1,2,6,7 ; 3 ; 4,5 | D. | 1,3 ; 2,4,5 ; 6,7 |
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Answer: Option D Explanation: 1, 3 contain a V-shaped element inside a geometrical figure. 2, 4, 5 contain two similar elements, one placed inside the other and touching it. 6, 7 contain geometrical figures which are divided into four equal parts by two mutually perpendicular straight lines. 5. Group the given figures into three classes using each figure only once. 
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A. | 1,2,5 ; 3,7,8 ; 4,6,9 | B. | 1,7,2 ; 3,9,6 ; 4,5,8 | C. | 2,3,8 ; 4,6,9 ; 1,5,7 | D. | 5,6,9 ; 3,4,1 ; 2,7,8 |
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Answer: Option A
Explanation:
1, 2, 5 are figures that have patterns formed from four lines curved in a concave direction.
3, 7, 8 are figures that have patterns formed from four lines curved in a convex direction.
4, 6, 9 are figures that have patterns formed from these straight lines.
6.Group the given figures into three classes using each figure only once. 
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A. | 2,4,7 ; 1,8,9 ; 3,5,6 | B. | 2,6,9 ; 1,5,7 ; 3,4,8 | C. | 2,6,7 ; 1,5,8 ; 3,4,9 | D. | 2,8,7 ; 1,5,9 ; 3,4,6 |
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Answer: Option B
Explanation:
1, 5, 7 contain a rectangle with its two diagonals as the outer element and another element (similar or different) placed inside it.
2, 6, 9 contain a triangle with its three medians as the outer element and another element (similar or different) placed inside it.
3, 4, 8 contain a circle with its two mutually perpendicular diameters as the outer element and another element (similar or different) placed inside it.
7.Group the given figures into three classes using each figure only once. 
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A. | 1,3,5 ; 2,6,9 ; 4,7,8 | B. | 2,3,4 ; 5,6,8 ; 9,1,7 | C. | 1,3,5 ; 2,6,8 ; 4,7,9 | D. | 3,2,4 ; 6,5,8 ; 7,9,1 |
Answer: Option C Explanation: 1, 3, 5 are figures having partially or completely curved boundaries. 2, 6, 8 are all triangles. 4, 7, 9 are all quadrilaterals. 8.Group the given figures into three classes using each figure only once. 
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A. | 1,5,8 ; 3,4,7 ; 2,6,9 | B. | 1,3,6 ; 4,5,9 ; 2,7,8 | C. | 1,3,6 ; 2,5,7 ; 4,8,9 | D. | 6,7,8 ; 1,3,7 ; 2,4,9 |
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Answer: Option C Explanation: 1, 3, 6 contain one complete circle each. 2, 5, 7 contain a semi-circle each. 4, 8, 9 contain a triangle each. 9. Group the given figures into three classes using each figure only once. 
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A. | 1,2,4 ; 3,5,6 ; 7,8,9 | B. | 1,7,8 ; 3,5,6 ; 2,4,9 | C. | 1,3,4 ; 2,8,9 ; 5,6,7 | D. | 1,7,8 ; 2,3,6 ; 4,5,9 |
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Answer: Option B Explanation: 1, 7, 8 are all undivided geometrical figures. 3, 5, 6 are geometrical figures divided into two parts. 2, 4, 9 are geometrical figures divided into four parts. 10.Group the given figures into three classes using each figure only once. 
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A. | 1,3,7 ; 2,4,6 ; 5,8,9 | B. | 1,4,6 ; 2,5,7 ; 3,8,9 | C. | 1,4,8 ; 2,5,6 ; 3,7,9 | D. | 1,4,8 ; 2,7,9 ; 3,5,6 |
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Answer: Option C
Explanation:
1, 4, 8 contain similar elements (not equal in size) each divided into four parts and attached to each other.
2, 5, 6 contain three elements (two of which are similar) placed one inside the other.
3, 7, 9 contain one element inside the other, which may or may not be similar.
11.Group the given figures into three classes using each figure only once. 
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A. | 1,7,9 ; 2,3,6 ; 4,5,8 | B. | 1,2,9 ; 3,4,6 ; 5,7,8 | C. | 1,6,8 ; 2,4,7 ; 3,5,9 | D. | 1,7,8 ; 2,9,3 ; 6,4,5 |
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Answer: Option A
Explanation:
1, 7, 9 contain two similar elements one inside the other but not touching each other.
2, 3, 6 contain two similar elements one inside the other and both touching each other.
4, 5, 8 are divided into equal parts by straight lines emerging from the centre.
12. Group the given figures into three classes using each figure only once. 
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A. | 1,4,7 ; 2,5,9 ; 3,8,6 | B. | 2,6,9 ; 1,4,7 ; 5,8,3 | C. | 1,4,7 ; 2,3,6 ; 5,8,9 | D. | 3,5,1 ; 4,7,8 ; 6,2,9 |
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Answer: Option C
Explanation:
5, 8, 9 are objects having both base as well as upper lid.
2, 3, 6 are objects having base but not upper lid.
1, 4, 7 tare objects which have neither a base nor an upper lid attached to them.
13.Group the given figures into three classes using each figure only once. 
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A. | 1,5,8 ; 2,6,7 ; 3,4,9 | B. | 1,5,7 ; 2,6,8 ; 3,4,5 | C. | 1,5,8 ; 2,4,7 ; 3,6,9 | D. | 1,5,8 ; 2,6,9 ; 3,4,7 |
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Answer: Option C
Explanation:
3, 6, 9 are geometrical figures containing line segments (the number of these line segments is half the number of sides in the figure) parallel to the sides of the figure.
1, 5, 8 consist of a circle and a triangle intersecting it. The triangle is also divided into two equal parts by a straight line.
2, 4, 7 are all funnel shaped figures.
14. Group the given figures into three classes using each figure only once. 
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A. | 2,4,7 ; 1,6,9 ; 3,5,8 | B. | 1,3,5 ; 2,6,7 ; 4,8,9 | C. | 1,5,7 ; 2,3,6 ; 4,8,9 | D. | 1,3,5 ; 2,4,7 ; 6,8,9 |
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Answer: Option A
Explanation:
1, 6, 9 are figures which are half shaded by slanting lines.
2, 4, 7 are all divided into equal parts (either three or four parts) by straight lines and also have a black circle at the centre.
3, 5, 8 have similar designs and have their four corners shaded black.
15.Group the given figures into three classes using each figure only once. 
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A. | 1,2,3 ; 4,5,8 ; 6,7,9 | B. | 1,5,6 ; 2,3,4 ; 7,8,9 | C. | 1,3,5 ; 2,4,8 ; 6,7,9 | D. | 1,4,7 ; 2,5,8 ; 3,6,9 |
Answer: Option B Explanation: 1, 5, 6 have two similar elements, one inside the other. 2, 3, 4 contain straight lines each dividing, the figure into two equal parts. 7, 8, 9 have one element placed inside a different element.
16.Group the given figures into three classes using each figure only once. 
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A. | 1,4,7 ; 3,6,9 ; 2,5,8 | B. | 1,6,9 ; 2,4,7 ; 3,5,8 | C. | 1,4,7 ; 2,6,9 ; 3,5,8 | D. | 1,5,7 ; 2,6,9 ; 3,4,8 |
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Answer: Option C Explanation: 3, 5, 8 have similar designs (four leaves placed close to a small circle and forming a symmetrical design at the centre of the figure). 2, 6, 9 have similar designs (three of the corners of the main figure are shaded black and there is a pattern formed around a '+' sign at the centre of the figure). 1, 4, 7 have similar designs (there are four small circles at(the corners of the main figure and there is a wheel shaped element at the centre of the figure). 17.Group the given figures into three classes using each figure only once. 
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A. | 1,3,9 ; 2,5,8 ; 4,6,7 | B. | 1,5,8 ; 4,6,7 ; 2,3,9 | C. | 2,5,9 ; 1,3,8 ; 2,6,7 | D. | 1,8,9 ; 4,6,7 ; 2,3,5 |
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Answer: Option B Explanation: 1, 5, 8 are all open figures bisected by a line segment. 4, 6, 7 are all closed figures touching a line segment. 2, 3, 9 are all closed figures intersected by a line.
18. | Group the given figures into three classes using each figure only once. 
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A. | 1,5,9 ; 2,7,8 ; 3,4,6 | B. | 1,5,6 ; 4,7,8 ; 2,3,9 | C. | 2,4,9 ; 6,7,8 ; 1,3,5 | D. | 3,7,8 ; 4,5,9 ; 1,2,6 |
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Answer: Option C
Explanation:
2, 4, 9 have two similar elements intersecting each other.
6, 7, 8 have two different elements one placed inside the other.
1, 3, 5 have two different elements intersecting each other.
Image Analysis
Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces fiven in figure (X).

Answer: Option A
2. Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces fiven in figure (X).

Answer: Option B
3. Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces fiven in figure (X).

Answer: Option B
4. Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces fiven in figure (X).

Answer: Option C
5. Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces fiven in figure (X).

Answer: Option A
6. Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces fiven in figure (X).

Answer: Option A
Explanation:

7. Find out which of the figures (1), (2), (3) and (4) can be formed from the pieces fiven in figure (X).

Answer: Option B
8. Select the alternative in which the specified components of the key figure (X) are found.

Answer: Option B
9. Select the alternative in which the specified components of the key figure (X) are found.

Answer: Option C
10. Select the alternative in which the specified components of the key figure (X) are found.

Answer: Option A
11. Select the alternative in which the specified components of the key figure (X) are found.

Answer: Option B
12. Select the alternative in which the specified components of the key figure (X) are found.

Answer: Option A
13. Select the alternative in which the specified components of the key figure (X) are found.

Answer: Option C
14. Select the alternative in which the specified components of the key figure (X) are found.

Answer: Option D
15. Find out how will the key figure (X) look like after rotation.

Answer: Option C
16. Find out how will the key figure (X) look like after rotation.

Answer: Option B
17. Find out how will the key figure (X) look like after rotation.

Answer: Option D
18. Find out how will the key figure (X) look like after rotation.

Answer: Option D
19. Find out how will the key figure (X) look like after rotation.

Answer: Option D
20. Find out how will the key figure (X) look like after rotation.

Answer: Option B
Pattern Completion
1. In each of the following questions, select a figure from amongst the four alternatives, which when placed in the blank space of figure (X) would complete the pattern.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option C
Explanation:

2.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

3.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
Answer: Option D Explanation: 
4. Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

5.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

6.
| Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option C
Explanation:

7.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

8.
| Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

9.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

10.
| Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

11.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

12.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Explanation:

13.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

14.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

15.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

16.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4)
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Answer: Option A
Explanation:

17.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option A
Explanation:

18.
Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option A
Explanation:

19.
| Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option B
Explanation:

20.
| Identify the figure that completes the pattern. 
(X) (1) (2) (3) (4) |
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Answer: Option A
Explanation:

Paper Cutting
Each of the following questions consists of a set of three figures X, Y and Z showing a sequence of folding of apiece of paper. Figure (Z) shows the manner in which the folded paper has been cut. These three figures are followed by four answer figures from which you have to choose a figure which would most closely resemble the unfolded form of figure (Z).
1. | Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option C
2. | Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option C
3. | Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option B
4.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option C
5.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option D
6.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option B
7.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option D 8. Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option D 9. Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option D
10.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option D
11.
| Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option C
12.
| Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option B
13.
| Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option C
14.
Choose a figure which would most closely resemble the unfolded form of Figure (Z).

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Answer: Option C
15.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option C
16.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option B
17.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option C
18.
Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option D 19. Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option D 20. Choose a figure which would most closely resemble the unfolded form of Figure (Z). 
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Answer: Option B Shape ConstructionIn each of the following questions, a set of five alternative figures 1, 2, 3, 4 and 5 followed by a set of four alternatives (A), (B), (C) and (D) is provided. It is required to select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 1. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option D Explanation: 
2. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option A Explanation: 
3. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option C Explanation: 
4. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option D Explanation: 
5. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option C Explanation: 
6. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option B Explanation: 
7. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option D Explanation: 
8. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option A Explanation: 
9. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option C Explanation: 
10. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option D Explanation: 
11.
| Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option C Explanation: 
12.
| Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option B Explanation: 
13. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option A Explanation: 
14.
| Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option A Explanation: 
15. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option B Explanation: 
16. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option C Explanation: 
17. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option B Explanation: 
18. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option D Explanation: 
19. Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option B Explanation: 
20.
| Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square. 
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Answer: Option C Explanation: 
Paper Folding In each of the following problems, a square transparent sheet (X) with a pattern is given. Figure out from amongst the four alternatives as to how the patter would appear when the transparent sheet is folded at the dotted line. 1. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option D 2. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option C 3. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) | A. | 1 | B. | 2 | C. | 3 | D. | 4 |
Answer: Option D
4. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option D 5. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option A 6. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option C 7. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option A 8. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option D 9. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option C 10. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option C 11. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option C 12. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option B 13. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option A 14. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option B 15. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option D 16. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option D 17. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option A 18. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option D 19. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option B 20. Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line. 
(X) (1) (2) (3) (4) |
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Answer: Option D
Character Puzzles1. Which one will replace the question mark? 
Answer: Option B Explanation: (5 x 6 x 8) + (7 x 4 x 9) = 492 and (7 x 5 x 4) + (6 x 8 x 9) = 572 Therefore (4 x 3 x 5) + (7 x 2 x 5) = 130.
2. Which one will replace the question mark ? 
Answer: Option D Explanation: 21 + 31 = 52 and 33 + 46 = 85 Therefore, 16 + 83 = 99. 3. Which one will replace the question mark ? 
Answer: Option D Explanation: How the number is obtained? 2 + 4 = 6 5 + 9 = 14 Similarly, 3 + 5 = 8 Therefore, the answer is K8. 4. Which one will replace the question mark ? 
Answer: Option D Explanation: (5 + 4 + 7)/2 = 8 (6 + 9 + 5)/2 = 10 (3 + 7 + 2)/2 = 6.
5. Which one will replace the question mark ? 
Answer: Option C Explanation: (12 + 18 + 30)/10 = 6 (16 + 24 + 40)/10 = 8 Similarly, (45 + 18 + 27)/10 = 9.
6. Which one will replace the question mark ? 
Answer: Option C Explanation: (5 x 3) + 4 = 19 and (6 x 4) + 5 = 29 Therefore, (7 x 5) + 6 = 41
7. Which one will replace the question mark ? 
Answer: Option A Explanation: (12)2 - (8)2 = 80 and (16)2 - (7)2 = 207 Therefore (25)2 - (21)2 = 184.
8. Which one will replace the question mark ? 
Answer: Option C Explanation: (0 + 2 + 6 + 4) - 2 = 10 and (6 + 2 + 10 + 8) - 2 = 24 Therefore, (4 + 14 + 12 + 10) - 2 = 38.
9. Which one will replace the question mark ? 
Answer: Option B Explanation: (1)3 = 1, (2)3 = 8, (3)3 = 27 Therefore, (4)3 = 64.
10. Which one will replace the question mark ? 
Answer: Option D Explanation: Sum of numbers in lower half of the circle = 11 + 9 + 3 + 7 = 30 Sum of numbers in upper half of the circle = ? + 4 + 5 + 6 = ? + 15 Upper half = Lower half 30 = ? + 15 ? = 30 - 15 ? = 15. Threfore, 15 is the answer.
11. Which one will replace the question mark ? 
Answer: Option B Explanation: 915 - 364 = 551 and 789 - 543 = 246 Similarly, 863 - 241 = 622.
12. Which one will replace the question mark ? 
Answer: Option C Explanation: 
13. Which one will replace the question mark ? 
Answer: Option D Explanation: (2)3 + (1)3 + (3)3 = 36 and (0)3 + (4)3 + (3)3 = 91 Therefore, (4)3 + (2)3 + (1)3 = 73. 14. Which one will replace the question mark ? 
Answer: Option C Explanation: (6 + 5) - (7 + 4) = 0 and (7 + 6) - (8 + 4) = 1 Therefore (11 + 2) - (2 + 0) = 11.
15. Which one will replace the question mark ? 
Answer: Option A Explanation: The numbers are squared in ascending order In first circle, (3)2 = 9 (4)2 = 16 (5)2 = 25 (6)2 = 36. In second circle, (4)2 = 16 (5)2 = 25 (6)2 = 36 (7)2 = 49. In third circle, (6)2 = 36 (7)2 = 49 (8)2 = 64 (9)2 = 81.
16.Which one will replace the question mark ? 
Answer: Option A Explanation: (4)2 + (2)2 + (1)2 = 21 and (5)2 + (3)2 + (8)2 = 98 Therefore (6)2 + (7)2 + (3)2 = 94. 17.Which one will replace the question mark ? 
Answer: Option B Explanation: (7 x 3) + 8 = 29 (4 x 3) + 7 = 19 (5 x ?) + 6 = 31 ? = 5.
18. Which one will replace the question mark ? 
Answer: Option D Explanation: (3 x 4) + 3 = 15 and (7 x 5) + 3 = 38 Therefore (3 x 5) + 3 = 18.
19. Which one will replace the question mark ? 
Answer: Option B Explanation: (2)2 + (4)2 = 20 and (3)2 + (9)2 = 90 Therefore (1)2 + (5)2 = 26.
20.Which one will replace the question mark ? 
Answer: Option B Explanation: (7 x 3) = 21 and (9 x 3) = 27 and (4 x 9) = 36 and (2 x 9) = 18 Therefore (9 x 6) = 54 and (4 x 6) = 24.
21. Which one will replace the question mark ? 
Answer: Option A Explanation: (15 x 2 - 3) = 27, (31 x 2 - 6) = 56 and (45 x 2 - 9) = 81 22.Which one will replace the question mark ? 
Answer: Option C Explanation: (4 x 6) % 3 = 8 (6 x 10) % 5 = 12 (4 x 8) % 2 = 16.
23. Which one will replace the question mark ? 
Answer: Option A Explanation: (15 - 12) + (10 - 9) = 4 (28 - 12) + (16 - 20) = 12 Similarly, (23 -11) + (15- 16) = 11.
Missing Letters Puzzles1) 
Answer: M Explanation: Working in rows, add together the numerical values of the left and right hand letters to give the numerical value of the central letter.
2) 
Answer: O Explanation: In each segment of the diagram are a pair of letters, one of which is the same distance from the start of the alphabet as the other is from the end.
3) 
Answer : K Explanation: As you move down, the numerical value of the letters follows the sequence of Prime Numbers. 4) 
Answer : W Explanation: Working from left to right, letters move forwards 7 places, then back 2. Repeat this sequence until the end. 5) 
Answer : G Explanation: The numerical values of the letters in each row add up to 26 each time.
6) 
Answer : W Explanation: Starting at the top left and moving down, then right one column and up etc in a snakes and ladders pattern, letters move through the alphabet 4 letters at a time. 7) 
Answer: B Explanation: In each row, add the numerical value of the left and right hand letters together and write the letter with the reverse alphabetical value in the centre.
8) 
Answer: T Explanation: Starting at F and moving anti-clockwise, letters move through the alphabet in steps of 2, 3, 4, 5 etc. 9) 
Answer: P Explanation : Starting at the top left circle, and moving right, then down one row and moving left, in a snakes and ladders pattern, letters move through the alphabet in steps of 2, 3 and 4, repeating this pattern all the way down.
10) 
Answer: V Explanation : Starting at the top left, and moving anti-clockwise around the figure, letters advance through the alphabet 5 letters at a time. 11) 
Answer: 1 Explanation: Working from left to right, letters in corresponding segments of the circles move through the alphabet in steps of 2, 3 and 4, with their relative positions moving one place clockwise at each step.
12) 
Answer:B Explanation: In each diagram, letters are written in sequence, starting in the top left circle and moving clockwise around the other 3 outer circles, in steps given by the numerical value of the central letter each time. 13) 
Answer :E Explanation: Using the numerical value of each letter, in each column, the value of the central letter equals the sum of the values of the top and bottom letters.
14) 
Answer: N Explanation : The alphabetical value of the letters in the left hand column follows through the sequence of Prime Numbers, with the letters in the right hand column representing the corresponding reverse alphabetical values. 15) 
Answer: I Explanation: Starting on the left, and moving downwards in columns from left to right, letters are written in alphabetical sequence, in steps of 4 letters at a time.
16) 
Answer: U Explanation: Starting on the left, and moving along the line to the right, letters follow the alphabetic sequence, in steps of 1,2,3 and then 4, before repeating the sequence. 17) 
Answer : 2 Explanation : Splitting the large square into quarters, each quarter features the same pattern of letters.
18) 
Answer : F Explanation: In each star shape, the sum of the numerical values of the letters bounded by one triangle is equal to that of the other triangle. 19) 
Answer: Y Explanation: Starting in the top left circle, and following a W pattern through the others, letters in corresponding segments of the circles follow the alphabetical sequence in steps of 4 letters.
20) 
Answer: A Explanation: Writing each letter as its numerical value and working in rows, add the top 2 digit number to the bottom 2 digit number to give the 3 digit result in the center. 21) 
Answer : K Explanation: In each row, the product of the left and right hand numbers equals the sum of the numerical values of the three letters.
22) 
Answer: H Explanation: Start at the top and move down, taking single letters or pairs of letters that appear on the same horizontal line. The sum of the numerical values of the letters in each line increases by 2 as you go down, from 18 to 26.
Logical Puzzles1) 
Answer | : | U | Explanation | : | Multiply the numerical values of the letters in each pair to give the 3 digit result in the spaces above. |
2) 
Answer : 12 Explanation: The value at each corner of the diagram equals the difference between the sums of the numerical values of the letters in the boxes adjacent to the corner.
3) 
Answer | : | D | Explanation | : | The number of black dots in each grid increases by 1 each time, starting with the top left grid and working to the right, top row then bottom row. |
4) 
Answer | : | Q | Explanation | : | Adding the three numbers in each square together gives the numerical value of the letter at the centre of each square. |
5) 
Answer: Hammer Explanation: The Hammer = 1, the File = 3 and the Axe = 5 6) 
Answer : A Explanation: Working from left to right, top row then bottom row, the first grid contains a sequence of 2 black dots and a sequence of 3. The next grid contains one of 3 and one of 4. Continue, adding 1 to each sequence every time.
7) 
Answer: 3 Explanation: In each diagram, the numerical value of the left hand letter equals the product of the upper and lower left hand numbers, and the right hand letter equals the product of the upper and lower right hand numbers. The numerical value of the central letter equals the sum of the numerical values of the left and right hand letters. 8) 
Answer : B Explanation: In each row of the diagram, the reverse alphabetical value of the central letter equals the sum of the left and right hand digits.
9) 
Answer : G Explanation: Convert each letter to its numerical value, and read each pair of values as 2 digit numbers. In each row, the number in the centre equals the difference between the 2 digit values on the left and right. 10) 
Answer: Y Explanation: Start in the top left hand corner and move anti clockwise around the perimeter of the square. Letters are written in alphabetical order, skipping 1 letter, then 2 letters, then 3 etc.
12) 
Answer | : | E | Explanation | : | In each row, the left hand grid is symmetrical around a vertical axis, the central grid is symmetrical about a horizontal axis, and the right hand grid is symmetrical about a diagonal axis, running bottom left to top right. |
13 
Answer : Carriage Explanation: The Carriage = 2, the Car = 3 and the Bus = 6
14) 
Answer | : | 4 | Explanation | : | Split the left and right hand circles into 2 halves vertically. The numerical value of the letter in the upper left segment of the central circle equals the sum of the numbers in the left half of the left hand circle, and the letter in the lower left equals the sum of the numbers in the right half of the left hand circle. Repeat this pattern for the right hand circle. |
15) 
Answer : Doughnut Explanation : The Doughnut = 4, the Eclair = 6 and the Bun = 7.
16) 
Answer : A Explanation: [NIL]
17) 
Answer | : | C | Explanation | : | [NIL] |
18) 
Answer | : | Z | Explanation | : | In each row, multiply the numerical values of the left and right hand letters, putting the result in the centre. |
19) 
Answer | : | F | Explanation | : | In each diagram, convert each letter to its numerical value, and read the top and bottom pairs of letters as complete 2 digit values. Multiply these values together to give the 3 digit result written in the centre spaces. |
22) 
Answer : C
Playing Cards Puzzles
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| [N
Answer | : | King of Clubs | Explanation | : | Start at the top left of the diagram and move to the right, then down one row and to the left etc. in a snakes and ladders pattern. The value of each card increases by 5 each time, with their suit following the sequence of hearts, clubs, diamonds and spades. |

Answer | : | 7 (any suit) | Explanation | : | Taking the value of Aces as 1 and all court cards as 10, In each column of the diagram, the value of the sum of the 3 cards is always 21. |
3) 
Answer : Jack of SpadeS Explanation: There are 2 sequences in the grid - one determining the value of the card, and one determining the suit of the card. Starting on the top left and moving right, then down one row and to the left, then down the final row and to the right, cards are arranged in order, with their value increasing by 4 each time. To calculate the suit of each card, start on the top left and move down, then right one row and move up etc. cards are arranged in the order Hearts, Clubs, Diamonds, Spades
4). 
Answer | : | 3 of SpadeS | Explanation | : | Divide the diagram in half, vertically. In each half, start at the top left card and move to the right, then down one row and to the left, and finally to the right, in a snakes and ladders pattern. The value of the cards in the left hand half increase alternately by 3 and 4, and the value of the cards in the right hand half increase alternately by 4 and 5. To calculate the suit of each card, start at the top left of the whole diagram and move down, then to the right one space and upwards etc. in a snakes and ladders pattern. Suits are written in order, following this path, starting with Hearts, then Clubs, Diamonds and Spades.
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5) 
Answer | : | Nine of Clubs | Explanation | : | In each column of the diagram, add the top and bottom card values together and subtract 2 to give the value of the central card. |
Clock Puzzles1) 
Answer | : | To the 4 | Explanation | : | Start with the top left clockface, and move around the others in a clockwise direction. The value pointed to by the hour hand equals the value pointed to by the minute hand, subtracting 4 for the first clockface, 5 for the next, then 6 etc.
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2) 
Answer | : | 5:23 | Explanation | : | The sum of the separate digits on each watch increases by 2 as you move to the right. |
3) 
Answer | : | Hour hand is pointing to 2. | Explanation | : | Multiply the hour hand value by 2 and add the minute hand value. This total is always 15. |
4) 
Answer | : | Five minutes to Ten | Explanation | : | Start with the top left clockface, and move around the others clockwise. The minute hand moves backwards by 15 minutes, then 20, then 25 etc, while the hour hand moves forward 2 hours, then 3, then 4 etc.
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5) 
Answer : 5:23 Explanation: The sum of the separate digits on each watch increases by 2 as you move to the right. 6) 
Answer | : | Hour hand points to 8 | Explanation | : | Starting with the top clockface, and moving clockwise around the others, the minute hand moves forward 15 minutes, while the hour hand moves back 2 hours each time. |
7) 
Answer | : | To the 5 | Explanation | : | Start with the top left clockface, and move around the others in a clockwise direction. The sum of the numbers pointed to by the hour and minute hand follows the sequence 14, 15, 16, 17 and 18. |
8) 
Answer | : | 6:20 | Explanation | : | On each watch, the sum of the digits shown equals 8. |
9) 
Answer | : | The hour hand points to the 4. | Explanation | : | The sum of the values pointed to by the hands on each clock equals 12. |
10) 
Answer | : | 11:01 | Explanation | : | Taking the hour and minute values on each watch separately, as you move to the right the hour value increases by 1, 2, 3 and 4, and the minute value decreases by 11, 22, 33 and 44. |
|
| Answer | : | Minute hand pointing to 6 |
| Explanation | : | Starting with the top clockface and moving clockwise around the others, the hour hand moves forward by 1 hour, then 2, then 3, while the minute hand moves forward 10 minutes, then 20, then 30. |
11) 
12) 
Answer | : | To the 6 | Explanation | : | Starting with the top left clockface and working clockwise around the others, the sum of the numbers pointed to by the 2 hands starts at 3 and increases by 2 each time. |
13) 
Answer | : | To the 4 | Explanation | : | The sum of the numbers pointed to by the hour and minute hands is always 11. |
14) 
Answer | : | 6:06 | Explanation | : | Start with the watch on the left and move to the right. The time on the watches increases by 2 hours 3 min- utes, then decreases by 1 hour 16 min- utes, alternately. |
15) 
Answer | : | To the 2 | Explanation | : | Starting with the top left clockface and moving clockwise around the others, the minute hand moves back 2 places, then 4, 6 and 8, while the hour hand moves forward 2 places, then 4, 6 and 8. |
16) 
Answer | : | 6:45 | Explanation | : | As you move from left to right, add 1 to the value of each digit on the watch, and rotate the digits one place to the left. |
17) 
Answer | : | To the 4 | Explanation | : | Starting with the top clockface and moving clockwise around the others, the minute hand points to the value 3 less than that pointed to by the hour hand. Repeat for the other clockfaces, subtracting 4, 5 and 6 from the hour hand values. |
18) 
Answer | : | To the 5 | Explanation | : | Start with the top left clockface and move clockwise around the others. The sum of the numbers pointed to by the hour and minute hand follows the sequence 3, 6, 9, 12 and 15. |
19) 
Answer | : | 3:36 | Explanation | : | On each watch, the time shown contains two digits that are the same. |
20) 
Answer | : | To the 8 | Explanation | : | Start with the top clockface and move clockwise around the others. The sum of the numbers pointed to by the 2 hands follows the sequence 5, 10, 15, 20. |
Number Puzzles1) 
Answer | : | 6 | Explanation | : | Looking at the diagram in rows, the central circle equals half the sum of the numbers in the other circles to the left and right of the centre. |

Answer | : | 9 | Explanation | : | The number at the centre of each triangle equals the sum of the lower two numbers minus the top number. |
3) 
Answer | : | 19 | Explanation | : | As you move diagonally down, numbers follow the sequence of Prime Numbers. |
4) 
Answer | : | 16 | Explanation | : | Starting bottom left and moving clockwise around the triangle, numbers follow the sequence of Square Numbers. |
5) 
Answer | : | 39 | Explanation | : | Working from top to bottom, double each number and subtract 1, then 2, then 3 etc. |
6) 
Answer | : | 4 | Explanation | : | Working in columns, the sum of the numbers in each column is always 14. |
7) 
Answer | : | 6 | Explanation | : | The numbers in each row and column add up to 15. |
8) 
Answer | : | 40 | Explanation | : | Moving from left to right, numbers increase by 2,3,4 and 5. |
9) 
Answer | : | 9 | Explanation | : | In each square of the diagram, the sum of the numbers is always 22. |
10) 
Answer | : | 16 | Explanation | : | Moving clockwise, around alternate segments in the chain, one sequence decreases by 1, 2, 3 and 4 each time, while the other increases by 2, 3, 4 and 5. |
11) 
Answer | : | 7 | Explanation | : | Starting with the numbers in the top row, and following straight lines through the centre of the diagram, subtract the middle number from the top number to give the corresponding value on the bottom row. |
12) 
Answer | : | 13 | Explanation | : | In each circle, starting at the top left segment, numbers increase, as you move clockwise, by 2 for the upper left circle, 3 for the upper right, 4 for the lower right and 5 for the lower left. |
13) 
Answer | : | 3 | Explanation | : | In each group of 3 numbers, the lower number equals the average of the top two numbers. |
14) 
Answer | : | 1 | Explanation | : | Reading each row as a 3 digit number, the rows follow the sequence of square numbers, from 17 to 19. |
15) 
Answer | : | 8,1 | Explanation | : | Reading each row as 3 separate 2-digit numbers, the central number equals the average of the left and right hand numbers. |
16) 
Answer | : | A:58 B:86 | Explanation | : | In the first oval, all numbers are multiples of 8, and in the second, they are all multiples of 7. |
17) 
Answer | : | 1 | Explanation | : | Reading each pair of numbers as a 2 digit number, they follow the sequence of square numbers from 6 to 9. |
18) 
Answer | : | 7 | Explanation | : | Taking the top row of circles, numbers in the central circle equal the sum of the numbers in corresponding segments of the left and right hand circles. In the bottom row, numbers in the central circle equal the difference between numbers in corresponding segments of the left and right hand circles. |
19) 
Answer | : | 253 | Explanation | : | Starting at the top left, and moving through the diagram in a Z shape, double each number and add 3 to give the next number along. |
20) 
Answer | : | 51 | Explanation | : | Moving to the right, double each number and subtract 3 to give the next number along. |
21) 
Answer | : | 2 | Explanation | : | Starting with the 10 at the top, one set of numbers increases by 3 each time, written in alternate boxes as you move down the diagram, and the other set of numbers decreases by 2, written in the boxes remaining. |
22) 
Answer | : | 6 | Explanation | : | On each row, add the values of the left hand and central boxes to give the value in the right hand box. |
Dot Situation1) Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
Answer: Option A Explanation: In fig. (X), the dot is contained in the region common to the triangle and the square only. Out of the four alternatives, only fig. (1) contains a region common to the triangle and the square only.
2. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option D Explanation: In fig. (X), the dot is contained in the region common to the square and the circle only. Out of the four alternatives, only fig. (4) contains a region common to the square and the circle only. |
3. |
Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option C Explanation: In fig. (X), one of the dots lies in the region common to the circle and the triangle only and the other dot lies in the circle alone. In each of the two figures (1) and (2), there is no region common to the circle and the triangle only. In fig. (4) there is no region which lies in the circle alone. Only fig. (3) consists of both the types of regions. |
4. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option D Explanation: In fig. (X), one of the dots lies in the region common to the circle and the triangle only, another dot lies in the region common to all the three figures - the circle, the square and the triangle and the third dot lies in the region common to the circle and the square only. In each of the figures (1) and (3), there is no region common to the circle and the square only and in fig. (2), there is no region common to the circle and the triangle only. Only fig. (4) consists of all the three types of regions. |
5.Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
Answer: Option A Explanation: In fig. (X), one of the dots is placed in the region common to the circle and the triangle only and another dot is placed in the region common to the square and the triangle only. In each of the three alternatives (2), (3) and (4), there is no region common to the square and the triangle only. Only fig. (1) consists of both the types of regions.
6. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option A Explanation: In fig. (X), one of the dots lies in the region common to the square and the rectangle only, another dot lies in the region common to all the four elements - the circle, the square, the triangle and the rectangle and the third dot lies in the region common to the triangle and the rectangle only. In fig. (2) there is no region common to the triangle and the rectangle only. In fig. (3) there is no region common to the square and the rectangle only. In fig. (4) there is no region common to all the four elements - the circle, the square, the triangle and the rectangle. Only fig. (1) consists of all the three types of regions.
| 7. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option C Explanation: In fig. (X), one of the dots lies in the region common to the circle the triangle and the rectangle only, another dot lies in the region common to the circle and the triangle only and the third dot lies in the region common to the circle, the square and the triangle only. In each of the figures (1), (2) and (4) there is no region common to the circle, the triangle and the rectangle only. Only fig. (3) consists of all the three types of regions. |
8. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option A Explanation: In fig. (X), one of the dots lies in the region common to the circle and the triangle only and the other dot lies in the region common to the square and the triangle only. In each of the figures (2), (3) and (4), there is no region common to the circle and the triangle only. Only fig. (1) consists of both the types of regions. |
9.
|
Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option B Explanation: In fig. (X), one of the dots lies in the region common to the circle and the square only, another dot lies in the region common to all the three figures - the circle, the square and the triangle and the third dot lies in the region common to the circle and the triangle only. In each of the alternatives (1), (3) and (4), there is no region common to the circle and the triangle only. Only fig. (2) consists of all the three types of regions. |
10. |
Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option D Explanation: In fig. (X), one of the dots lies in the region common to the square and the triangle only and the other dot lies in the region common to all the three figures - the circle, the square and the triangle. In each of the alternatives (1) and (2), there is no region common to the square and the triangle only. In alternative (3), there is no region common to all the three figures. Only, alternative (4) consists of both the types of regions |
11. Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
Answer: Option C Explanation: In fig. (X), one of the dots lies in the region common to the circle and the square only, another dot lies in the region common to the circle, the square and the rectangle only Dot and the third dot lies in the region common to the square, the triangle and the rectangle only. In each of the figures (1), (2) and (4), there is no region common to the square, the triangle and the rectangle only. Only fig. (3) consists of all the three types of regions.
12. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X.  |
Answer: Option B Explanation: In fig. (X), one of the dots lies in the region common to the circle, the square and the rectangle only, another dot lies in the region common to all the four elements - the circle, the square, the triangle and the rectangle and the third dot lies in the region common to the circle, the triangle and the rectangle only. In fig. (1), there is no region common to the circle, the triangle and the rectangle only. In each of the figures (3) and (4) there is no region common to all the four elements - the circle, the square, the triangle and the rectangle. Only fig. (2) consists of all the three types of regions.
| 13. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X.  |
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Answer: Option B Explanation: In fig. (X), one of the dots lies in the region common to the circle and the triangle only, another dot lies in the region common to the circle, the square and the triangle only and the third dot lies in the rectangle alone. In figures (1) and (4) there is no region common to the circle and the triangle only. In fig. (3) there is no region which lies in the rectangle alone. Only fig. (2) contains all the three types of regions. |
14. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X.  |
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Answer: Option B Explanation: In fig. (X), the dot lies in the region common to all the three figures - square, triangle and circle. Out of the four alternatives, only fig. (2) contains a region common to all the three figures. Hence, fig. (2) is the answer. |
15. |
Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option C Explanation: In fig. (X), one of the dots lies in the triangle alone, another dot lies in the region common to the square and the triangle only and the third dot lies in the region common to the circle and the square only. In each of the figures (1), (2) and (4), there is no region common to the square and the triangle only. Only fig. (3) consists of all the three types of regions. |
16. |
Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option A Explanation: In fig. (X), one of the dots lies in the region common to the circle and the square only, another dot lies in the region common to all the three figures - the circle, the square and the triangle and the third dot lies in the circle alone. In fig. (2) there is no region common to the circle and the square only and in each of the figures (3) and (4) there are regions which lie in the circle alone. Only fig. (1) consists of all the three types of regions. |
. | 17. Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option D Explanation: In fig. (X), one of the dots lies in the region common to the circle and the rectangle only and the other dot lies in the region common to the circle, the square and the triangle only. In each of the figures (1) and (2), there is no region common to the circle and the rectangle only. In fig. (3), there is no region common to the circle, the square and the triangle only. Only fig. (4) consists of both the types of regions.
| 18. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option B Explanation: In fig. (X), one of the dots lies in the region common to the circle and the triangle only and the other dot lies in the region common to the circle and the square only. In each of the figures (1), (3) and (4), there is no region common to the circle and the triangle only. Only fig. (2) consists of both the types of regions. |
| 19.Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option A Explanation: In fig. (X), one of the dots lies in the square alone, another dot lies in the triangle alone and the third dot lies in the region common to the circle and the square. In fig. (2) there is no region that lies in the square alone, in fig. (3) there is no region that lies in the triangle alone and in fig. (4) there is no region that lies in the region common to the circle and the square only. Only fig. (1) consists of all the three types of regions. |
20. | Select the figure which satisfies the same conditions of placement of the dots as in Figure-X. 
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Answer: Option C Explanation: In fig. (X), one of the dots lies in the square alone, another dot lies in the region common to the square and the triangle only and the third dot lies in the region common to the circle and the triangle. In fig. (1), there is no region which lies in the square alone. In each of the figures (2) and (4), there is no region common to the circle and the triangle only. Only, fig. (3) consists of all the three types of regions. |
Rule Detection1. | Choose the set of figures which follows the given rule. Rule: Closed figures become more and more open and open figures become more and more closed. 
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Answer: Option C | 2. | Choose the set of figures which follows the given rule. Rule: The series becomes simpler as it proceeds. 
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Answer: Option C | 3. | Choose the set of figures which follows the given rule. Rule: As the circle decreases in size, its sectors increase in number. 
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Answer: Option D
| 4. | Choose the set of figures which follows the given rule. Rule: The series becomes complex as it proceeds. 
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Answer: Option C |
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Choose the set of figures which follows the given rule.
Rule: Closed figures become more and more open and open figures become more and more closed. 
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Answer: Option A
6. Choose the set of figures which follows the given rule. Rule: Closed figure becomes more and more open. 
Answer: Option A . |
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Verbal Aptitude
Closet Test
1. Today most businessmen are very worried. To begin with, they are not used to competition.In the past they sold whatever ...(1)... produced at whatever prices they chose. But ...(2)... increasing competition, customers began to ...(3)... and choose. Imports suddenly became ...(4)... available and that too at cheaper ...(5)...
Answer: Option C
Answer: Option A
Answer: Option C
4. |
A. | hardly | B. | Easily | C. | frequently | D. | Conveniently |
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Answer: Option B
Answer: Option D
2. As a rule of thumb, a manned mission costs from fifty to a hundred times more than a comparable unmanned mission. Thus, for scientific exploration alone, ...(1)... missions, employing machine intelligence, are ...(2)... However, there may well be ...(3)... other than scientific for exploring ...(4)... social, economic, political, cultural or ...(5)...
Answer: Option B
Answer: Option D
Answer: Option A
Answer: Option C
5. |
A. | Casual | B. | historic | C. | Historical | D. | histrionic |
Answer: Option C
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3. The principal advantage in having a clear cut objective of business is that it does not derail; the enterprise does not stray ...(1)... the direct route that it has set for ...(2)... Enterprises with well defined objectives can conveniently undertake ...(3)... and follow long range development policies. Recognition of objectives ...(4)... the temptation to compromise long range ...(5)... for short term gains and improves coordination in work and consistency in policy. 1. Answer: Option A 2. Answer: Option C 3.
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A. | production | B. | research | C. | audit | D. | appraisal |
Answer: Option A 4. Answer: Option D 5.
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4. Each species has its special place or habitat. An ...(1)... bird-watcher can look at ...(2)... forest, meadow, lake, swamp or field and ...(3)... almost exactly what birds he ...(4)... find there ...(5)... birds are found all over the world; others ...(6)... themselves to certain areas. Still ...(7)... migrate from one country to another in ...(8)... in search of warmth and ...(9)... and then return in spring, ...(10)... the season is more favourable. Answer: Option A
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Answer: Option C
Answer: Option D
Answer: Option B
5.
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Answer: Option B 6. Answer: Option C 7. Answer: Option A 8. Answer: Option A 9. Answer: Option D 10.
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Answer: Option D
5. ...(1)... can be injected ...(2)... human blood for ...(3)... diphtheria, pneumonia and severe wounds ...(4)... surgical operations, penicillin is given to ...(5)... to ...(6)... the bacterial information from spreading. After this ...(7)... several antibiotics ...(8)... discovered. Today, these antibiotics are ...(9)... the lives of lakhs of ...(10)... all over the world.
1. |
A. | Antibiotics | B. | Penicillin | C. | Streptomycin | D. | Teramycin | E. | Medicine |
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Answer: Option B 2. Answer: Option D 3.
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A. | treating | B. | operating | C. | discovering | D. | spreading | E. | monitoring |
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Answer: Option A 4. Answer: Option D 5. Answer: Option C 6. Answer: Option B 7. Answer: Option D 8. |
Answer: Option A 9. |
A. | multiplying | B. | providing | C. | saving | D. | infecting | E. | growing |
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Answer: Option C 10. Answer: Option E
6. Desire and action are often coordinated in that desire may ...(1)... the person to action or that desire may be ...(2)... from action. If P is seen as trying to do X, it is often inferred that P desires X. However, desire and action are not ...(3)... coordinated. The person may desire X without ...(4)... in any action directed towards the attainment of X. This even happens when X appears ...(5)... or when the other effects resulting from the action ...(6)... to attain X are sufficiently undesirable as to ...(7)... the desire for X. Sometimes, Of course, no action is necessary; the desire may or may not be ...(8)... quite independently of P's action. Furthermore, a given desire may lead to different actions, depending upon the environmental requirements. Actions are ...(9)... not only by desire but also by the way the person ...(10)... the casual structure of the environment. 1.
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Answer: Option D 2.
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A. | expelled | B. | ceased | C. | abstained | D. | refrained | E. | inferred |
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Answer: Option E 3.
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A. | invariably | B. | hopefully | C. | deliberately | D. | purposely | E. | negatively |
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Answer: Option A 4.
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A. | wanting | B. | associating | C. | engaging | D. | supporting | E. | exhibiting |
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Answer: Option C 5.
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A. | manageable | B. | valuable | C. | unattainable | D. | reachable | E. | approachable |
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Answer: Option E 6.
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A. | hostile | B. | necessary | C. | incidental | D. | insensible | E. | detrimental |
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Answer: Option B 7.
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A. | express | B. | appreciate | C. | reciprocate | D. | damage | E. | negate |
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Answer: Option E 8.
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A. | realised | B. | hypothesised | C. | verbalised | D. | criticised | E. | actualised |
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Answer: Option A 9.
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A. | projected | B. | determined | C. | controlled | D. | Galvanized | E. | pronounced |
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Answer: Option B 10.
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A. | downgrades | B. | fabricates | C. | develops | D. | sees | E. | enlarges |
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Answer: Option C Idioms and PhrasesSome proverbs/idioms are given below together with their meanings. Choose the correct meaning of proverb/idiom, If there is no correct meaning given, E (i.e.) 'None of these' will be the answer. 1.To cry wolf |
A. | To listen eagerly | B. | To give false alarm | C. | To turn pale | D. | To keep off starvation | E. | None of these |
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Answer: Option B 2.To end in smoke |
A. | To make completely understand | B. | To ruin oneself | C. | To excite great applause | D. | To overcome someone | E. | None of these |
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Answer: Option B 3.To be above board |
A. | To have a good height | B. | To be honest in any business deal | C. | They have no debts | D. | To try to be beautiful | E. | None of these |
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Answer: Option B 4.To put one's hand to plough |
A. | To take up agricultural farming | B. | To take a difficult task | C. | To get entangled into unnecessary things | D. | Take interest in technical work | E. | None of these |
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Answer: Option B 5.To do oneself justice |
A. | To dispense justice on our won | B. | To treat others with due respect | C. | To defends one's point of view | D. | To follow the path of truth and justice | E. | None of these |
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Answer: Option E 6.To pick holes |
A. | To find some reason to quarrel | B. | To destroy something | C. | To criticise someone | D. | To cut some part of an item | E. | None of these |
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Answer: Option C 7.To leave someone in the lurch |
A. | To come to compromise with someone | B. | Constant source of annoyance to someone | C. | To put someone at ease | D. | To desert someone in his difficulties | E. | None of these |
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Answer: Option D 8. | To play second fiddle |
A. | To be happy, cheerful and healthy | B. | To reduce importance of one's senior | C. | To support the role and view of another person | D. | To do back seat driving | E. | None of these |
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Answer: Option C 9.To be the question |
A. | To refer to | B. | To take for granted | C. | To raise objections | D. | To be discussed | E. | None of these |
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Answer: Option B 10. | A black sheep |
A. | An unlucky person | B. | A negro | C. | An ugly person | D. | A partner who takes no share of the profits | E. | None of these |
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Answer: Option E Explanation: In the English language, 'Black sheep' is an idiom used to describe an odd or disreputable member of a group, especially within a family. 11.A man of straw |
A. | A man of no substance | B. | A very active person | C. | A worthy fellow | D. | An unreasonable person | E. | None of these |
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Answer: Option A 12.To smell a rat |
A. | To see signs of plague epidemic | B. | To get bad small of a bad dead rat | C. | To suspect foul dealings | D. | To be in a bad mood | E. | None of these |
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Answer: Option C 13.To hit the nail right on the head |
A. | To do the right thing | B. | To destroy one's reputation | C. | To announce one's fixed views | D. | To teach someone a lesson | E. | None of these |
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Answer: Option A Explanation: To do exactly the right thing; to do something in the most effective and efficient way. 14.To join issue with To cooperate with others for a cause To join any voluntary organization for good purpose To resolve dispute and restore peace To enter in to argument over any issues None of the above
Answer: Option C Explanation: To Cooperate. 15.To set one's face against |
A. | To oppose with determination | B. | To judge by appearence | C. | To get out of difficulty | D. | To look at one steadily | E. | None of these |
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Answer: Option A
EXERCISE - II In the following questions four alternatives are given for the idiom/phrase italicised and underlined in the sentence. Choose the alternative which best expresses the meaning of idiom/phrase. 1. | Their business is now on its last legs. |
A. | About to fructify | B. | About to perish | C. | About to produce results | D. | About to take off |
Answer: Option B | 2.There was no opposition to the new policy by the rank and file of the Government. |
A. | the official machinery | B. | the ordinary members | C. | the majority | D. | the cabinet ministers |
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Answer: Option B 3.He went back on his promise to vote for me. |
A. | withdrew | B. | forgot | C. | reinforced | D. | supported |
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Answer: Option A 4.The old beggar ran amuck and began to throw stones at the passerby. |
A. | became desperate | B. | ran about wildly | C. | become annoyed | D. | felt disgusted |
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Answer: Option B 5. | I cannot conceive of a time when I was without a refrigerator |
A. | Imagine | B. | Give birth | C. | Understand | D. | Depend |
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Answer: Option A 6. | In spite of the immense pressure exerted by the militants, the Government has decided not to give in. |
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Answer: Option B 7.The authorities took him to task for his negligence. |
A. | gave him additional work | B. | suspended his assignment | C. | reprimanded him | D. | forced him to resign |
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Answer: Option C 8.The detective left no stone unturned to trace the culprit. took no pains | did very irrelevant things | resorted to illegitimate practices | used all available means |
Answer: Option D 9.Rohit has bitten off more than he chew. |
A. | Is trying to do much | B. | Is very greedy | C. | Is always hungry | D. | Has little regard for others |
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Answer: Option A 10. | His speech went down well with the majority of the audience. |
A. | found acceptance with | B. | was attentively listened to by | C. | was appreciated by | D. | was applauded by |
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Answer: Option C 11. | The parliamentary inquiry into the Bofors deal did not bring to light any startling facts. |
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Answer: Option D 12. | The class could not keep a straight face on hearing the strange pronunciation of the new teacher. |
A. | remain silent | B. | remain serious | C. | remain mute | D. | remain disturbed |
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Answer: Option B 13.Harassed by repeated acts of injustice. he decided to put his foot down. |
A. | not to yield | B. | Resign | C. | to accept the proposal unconditionally | D. | Withdraw |
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Answer: Option A 14.The new C.M stuck his neck out today and promised 10kgs. free wheat a month for all rural families. |
A. | took an oath | B. | took a risk | C. | extended help | D. | caused embarrassment |
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Answer: Option B 15.The dacoit murdered the man in cold blood. |
A. | coldly | B. | boldly | C. | ruthlessly | D. | deliberately |
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Answer: Option C 16.He has built a big business empire by his sharp practices. |
A. | extreme hard work | B. | keen business skills | C. | dishonest dealings | D. | sharp intelligence |
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Answer: Option C 17.The secretary and the treasurer are hand in glove with each other. |
A. | very good friends | B. | constantly fighting | C. | associates in some action | D. | suspicious of each other |
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Answer: Option A 18.He never liked the idea of keeping his wife under his thumb and so he let her do what she liked. |
A. | Pressed down | B. | Unduly under control | C. | Below his thumb | D. | Under tyrannical conditions. |
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Answer: Option B | 19.It is time that professors came down from their ivory towers and studied the real needs of the students. |
A. | Detachment and seclusion | B. | A tower made of ivory | C. | Prison | D. | Dream lands |
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Answer: Option A 20.You have to be a cool customer and be patient if you want to get the best buys. |
A. | Be calm and not be excitable | B. | Have a cool head | C. | Be uncommunicative | D. | Be choosy |
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Answer: Option A
SynonymsAnswer: Option C Answer: Option D 3.VENT |
A. | Opening | B. | Stodge | C. | End | D. | Past tense of go |
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Answer: Option A 4.EMBEZZLE |
A. | Misappropriate | B. | Balance | C. | Remunerate | D. | Clear |
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Answer: Option A Explanation: Main Entry: embezzle Part of Speech: verb Definition: steal money, often from employer Synonyms: abstract, defalcate, filch, forge, loot, misapply, misappropriate, misuse, peculate, pilfer, purloin, put hand in cookie jar, put hand in till, skim, thieve Antonyms: compensate, give, pay, reimburse, return Answer: Option A 6.MAYHEM |
A. | Jubilation | B. | Havoc | C. | Excitement | D. | Defeat |
Answer: Option B Answer: Option D Answer: Option A Answer: Option B 10.FRUGALITY |
A. | Foolishness | B. | Extremity | C. | Enthusiasm | D. | Economy |
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Answer: Option D 11. | CANTANKEROUS |
A. | Quarrelsome | B. | Rash | C. | Disrespectful | D. | Noisy |
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Answer: Option A 12.SCINTILLATING |
A. | Smouldering | B. | Glittering | C. | Touching | D. | Warming |
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Answer: Option B Answer: Option B 14.IMPROMPTU |
A. | Offhand | B. | Unimportant | C. | Unreal | D. | Effective |
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Answer: Option A Explanation: An impromptu action is one that you do without planning or organizing it in advance. |
15.INTIMIDATE
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Answer: Option B Answer: Option D 17. REPEATED QUESTION 18.CONNOISSEUR |
A. | Ignorant | B. | Lover of art | C. | Interpreter | D. | Delinquent |
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Answer: Option B 19.REPERCUSSION |
A. | Clever reply | B. | Recollection | C. | Remuneration | D. | Reaction |
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Answer: Option D Answer: Option B Answer: Option A Answer: Option A Answer: Option C Answer: Option C 25. DESTITUTION |
A. | Humility | B. | Moderation | C. | Poverty | D. | Beggary |
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Answer: Option C Explanation: Destitution: Poverty so extreme that one lacks the means to provide for oneself. |
26. DEIFY |
Answer: Option C 27. Answer: Option C 28. TACITURNITY |
A. | Dumbness | B. | Changeablemess | C. | Hesitation | D. | Reserve |
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Answer: Option D 29. RANT |
A. | Praise inordinately | B. | Formalise | C. | To preach noisly | D. | Treat with screen |
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Answer: Option C 30. REFECTORY |
A. | Restaurant | B. | Parlour | C. | Living Room | D. | Dining Room |
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Answer: Option D Explanation: A refectory is a large room in a school, university, or other institution, where meals are served and eaten. Antonyms1. Answer: Option B 2. IMPASSE |
A. | Resurgence | B. | Breakthrough | C. | Continuation | D. | Combination |
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Answer: Option B Answer: Option D Answer: Option B Answer: Option D 6.LOQUACIOUS |
A. | Reticent | B. | Talkative | C. | Garrulous | D. | Verbose |
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Answer: Option A 7.CULPABLE |
A. | Defendable | B. | Blameless | C. | Careless | D. | Irresponsible |
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Answer: Option B Answer: Option A Answer: Option B Answer: Option C Answer: Option C 12.EXODUS |
A. | Influx | B. | Home-coming | C. | Return | D. | Restoration |
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Answer: Option A Answer: Option D 14. Answer: Option A 15. Answer: Option D 16. EVASIVE |
Answer: Option B 17. GREGARIOUS |
A. | Antisocial | B. | Glorious | C. | Horrendous | D. | Similar |
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Answer: Option A 18. Answer: Option B 19. Answer: Option B 20. Answer: Option C 21. Answer: Option A 22.FRUGAL |
A. | Copious | B. | Extravagant | C. | Generous | D. | Ostentatious |
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Answer: Option B Answer: Option A Answer: Option C 25.EQUANIMITY |
A. | Resentment | B. | Dubiousness | C. | Duplicity | D. | Excitement |
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Answer: Option D Answer: Option C 27.HAPLESS |
A. | Cheerful | B. | Consistent | C. | Fortunate | D. | Shapely |
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Answer: Option C 28. | HOSTILITY |
A. | Courtesy | B. | Hospitality | C. | Relationship | D. | Friendliness |
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Answer: Option D Answer: Option B | 30.HYPOCRITICAL |
Answer: Option B
Change Of Voice |
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In the questions below the sentences have been given in Active/Passive voice. From the given alternatives, choose the one which best expresses the given sentence in Passive/Active voice. 1. Could you buy some stamps for me? |
A. | Stamps should be bought. | B. | You are requested to buy some stamps. | C. | You are ordered to buy some stamps. | D. | Stamps could be bought. |
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Answer: Option B 2. She spoke to the official on duty. |
A. | The official on duty was spoken to by her | B. | The official was spoken to by her on duty. | C. | She was spoken to by the official on duty. | D. | She was the official to be spoken to on duty. |
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Answer: Option A 3. He is said to be very rich. |
A. | He said he is very rich. | B. | People say he is very rich. | C. | He said it is very rich. | D. | People say it is very rich. |
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Answer: Option B 4. You need to clean your shoes properly. |
A. | Your shoes are needed to clean properly. | B. | You are needed to clean your shoes properly. | C. | Your shoes need to be cleaned properly. | D. | Your shoes are needed by you to clean properly |
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Answer: Option C 5.
| Do you imitate others? |
A. | Are others being imitated by you? | B. | Are others imitated by you? | C. | Have others being imitated by you? | D. | Were others being imitated by you? |
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Answer: Option B 6. She makes cakes every Sunday. |
A. | Every Sunday cakes made by her. | B. | Cakes are made by her every Sunday. | C. | Cakes make her every Sunday. | D. | Cakes were made by her every Sunday. |
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Answer: Option B 7.Darjeeling grows tea. |
A. | Tea is being grown in Darjeeling. | B. | Let the tea be grown in Darjeeling. | C. | Tea is grown in Darjeeling. | D. | Tea grows in Darjeeling. |
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Answer: Option C 8.Who is creating this mess? |
A. | Who has been created this mess? | B. | By whom has this mess been created? | C. | By whom this mess is being created? | D. | By whom is this mess being created? |
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Answer: Option D 9.A child could not have done this mischief. |
A. | This mischief could not be done by a child. | B. | This mischief could not been done by a child. | C. | This mischief could not have been done by a child. | D. | This mischief a child could not have been done. |
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Answer: Option C 10.You can play with these kittens quite safely. |
A. | These kittens can played with quite safely. | B. | These kittens can play with you quite safely. | C. | These kittens can be played with you quite safely. | D. | These kittens can be played with quite safely. |
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Answer: Option D 11.After driving professor Kumar to the museum she dropped him at his hotel. |
A. | After being driven to the museum, Professor Kumar was dropped at his hotel. | B. | Professor Kumar was being driven dropped at his hotel. | C. | After she had driven Professor Kumar to the museum she had dropped him at his hotel. | D. | After she was driven Professor Kumar to the museum she had dropped him at his hotel. |
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Answer: Option A | 12.I remember my sister taking me to the museum. |
A. | I remember I was taken to the museum by my sister. | B. | I remember being taken to the museum by my sister. | C. | I remember myself being taken to the museum by my sister. | D. | I remember taken to the museum by my sister. |
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Answer: Option B 13.They have built a perfect dam across the river. |
A. | Across the river a perfect dam was built. | B. | A perfect dam has been built by them across the river. | C. | A perfect dam should have been built by them. | D. | Across the river was a perfect dam. |
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Answer: Option B 14.The invigilator was reading out the instructions. |
A. | The instructions were read by the invigilator. | B. | The instructions were being read out by the invigilator. | C. | The instructions had been read out by the invigilator. | D. | The instructions had been read by the invigilator. |
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Answer: Option B 15.James Watt discovered the energy of steam. |
A. | The energy of steam discovered James Watt. | B. | The energy of steam was discovered by James Watt. | C. | James Watt was discovered by the energy of steam. | D. | James Watt had discovered energy by the steam. |
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Answer: Option B
Change Of SpeechIn the questions below the sentences have been given in Direct/Indirect speech. From the given alternatives, choose the one which best expresses the given sentence in Indirect/Direct speech. 1.The boy said, "Who dare call you a thief?" |
A. | The boy enquired who dared call him a thief. | B. | The boy asked who called him a thief. | C. | The boy told that who dared call him a thief. | D. | The boy wondered who dared call a thief. |
Answer: Option A 2.He prayed to God that he might live long. |
A. | He prayed, "He may have a long life". | B. | He said, "May you live long." | C. | He said, "May I live a long life." | D. | He said, "Will you live long." |
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Answer: Option B 3.The man said, "No, I refused to confers guilt." |
A. | The man emphatically refused to confers guilt. | B. | The man refused to confers his guilt. | C. | The man told that he did not confers guilt. | D. | The man was stubborn enough to confers guilt. |
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Answer: Option A 4.He exclaimed with joy that India had won the Sahara Cup. |
A. | He said, "India has won the Sahara Cup" | B. | He said, "India won the Sahara Cup" | C. | He said, "How! India will win the Sahara Cup" | D. | He said, "Hurrah! India has won the Sahara Cup" |
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Answer: Option D 5.The little girl said to her mother, "Did the sun rise in the East?" |
A. | The little girl said to her mother that the sun rose in the East. | B. | The little girl asked her mother if the sun rose in the East. | C. | The little girl said to her mother if the sun rises in the East. | D. | The little girl asked her mother if the sun is in the East. |
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Answer: Option B 6.Dhruv said that he was sick and tired of working for that company. |
A. | Dhruv said, "I am sick and tired of working for this company." | B. | Dhruv said, "He was tired of that company." | C. | Dhruv said to me, "I am sick and tired of working for this company." | D. | Dhruv said, "I will be tired of working for that company." |
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Answer: Option A 7.She said to him, "Why don't you go today?" |
A. | She asked him why he did not go that day. | B. | She said to him why he don't go that day. | C. | She asked him not to go that day. | D. | She asked him why he did not go today. |
Answer: Option A | 8."Are you alone, my son?" asked a soft voice close behind me. |
A. | A soft voice asked that what I was doing there alone. | B. | A soft voice said to me are you alone son. | C. | A soft voice from my back asked If I was alone. | D. | A soft voice behind me asked If I was alone. |
Answer: Option D 9.She exclaimed with sorrow that was a very miserable plight. |
A. | She said with sorrow, "What a pity it is." | B. | She said, "What a mystery it is." | C. | She said, "What a miserable sight it is." | D. | She said, "What a miserable plight it is." |
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Answer: Option D 10.She said that she would finish the work the next day A. she said “I will finish the work the next day” B. she said “I will finish the work the tomorrow” C. she said “you will finish the work the next day” D. she said “I finished the work” Answer: option A | 11."If you don't keep quite I shall shoot you", he said to her in a calm voice. |
A. | He warned her to shoot if she didn't keep quite calmly. | B. | He said calmly that I shall shoot you if you don't be quite. | C. | He warned her calmly that he would shoot her if she didn't keep quite. | D. | Calmly he warned her that be quite or else he will have to shoot her. |
Answer: Option C | 12.I told him that he was not working hard. |
A. | I said to him, "You are not working hard." | B. | I told to him, "You are not working hard." | C. | I said, "You are not working hard." | D. | I said to him, "He is not working hard." |
Answer: Option A 13. His father ordered him to go to his room and study. |
A. | His father said, "Go to your room and study." | B. | His father said to him, "Go and study in your room." | C. | His father shouted, "Go right now to your study room" | D. | His father said firmly, "Go and study in your room." |
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Answer: Option A 14. He said to his father, "Please increase my pocket-money." |
A. | He told his father, "Please increase the pocket-money" | B. | He pleaded his father to please increase my pocket money. | C. | He requested his father to increase his pocket-money. | D. | He asked his father to increase his pocket-money. |
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Answer: Option C 15. She said that her brother was getting married. |
A. | She said, "Her brother is getting married." | B. | She told, "Her brother is getting married." | C. | She said, "My brother is getting married." | D. | She said, "My brother was getting married." |
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Answer: Option C
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Letter and Symbol SeriesIn these series, you will be looking at both the letter pattern and the number pattern. Fill the blank in the middle of the series or end of the series. 1.DEF, DEF2, DE2F2, _____, D2E2F3 |
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Answer: Option D Explanation: In this series, the letters remain the same: DEF. The subscript numbers follow this series: 111, 112, 122, 222, 223, 233, 333, ... 2.ZA5, Y4B, XC6, W3D, _____ |
Answer: Option D Explanation: There are three series to look for here. The first letters are alphabetical in reverse: Z, Y, X, W, V. The second letters are in alphabetical order, beginning with A. The number series is as follows: 5, 4, 6, 3, 7. 3. | QAR, RAS, SAT, TAU, _____ |
Answer: Option A Explanation: In this series, the third letter is repeated as the first letter of the next segment. The middle letter, A, remains static. The third letters are in alphabetical order, beginning with R. |
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4.
| P5QR, P4QS, P3QT, _____, P1QV |
Answer: Option C Explanation: The first two letters, PQ, are static. The third letter is in alphabetical order, beginning with R. The number series is in descending order beginning with 5. 5. Answer: Option A Explanation: This series consists of a simple alphabetical order with the first two letters of all segments: B, C, D, E, F, G, H, I, J, K. The third letter of each segment is a repetition of the first letter. 6. JAK, KBL, LCM, MDN, _____ |
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Answer: Option B Explanation: This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment. 7. QPO, NML, KJI, _____, EDC |
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Answer: Option A Explanation: This series consists of letters in a reverse alphabetical order. 8. CMM, EOO, GQQ, _____, KUU |
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Answer: Option C Explanation: The first letters are in alphabetical order with a letter skipped in between each segment: C, E, G, I, K. The second and third letters are repeated; they are also in order with a skipped letter: M, O, Q, S, U. 9. ELFA, GLHA, ILJA, _____, MLNA |
Answer: Option D Explanation: The second and forth letters in the series, L and A, are static. The first and third letters consist of an alphabetical order beginning with the letter E. 10. Answer: Option A Explanation: The middle letters are static, so concentrate on the first and third letters. The series involves an alphabetical order with a reversal of the letters. The first letters are in alphabetical order: F, G, H, I , J. The second and fourth segments are reversals of the first and third segments. The missing segment begins with a new letter. 11. B2CD, _____, BCD4, B5CD, BC6D |
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Answer: Option B Explanation: Because the letters are the same, concentrate on the number series, which is a simple 2, 3, 4, 5, 6 series, and follows each letter in order. Essential Part1. orchestra Answer: Option C Explanation: An orchestra is a large group of musicians, so musicians are essential. Although many orchestras have violin sections, violins aren't essential to an orchestra (choice a). Neither a stage (choice b) nor a soloist (choice d) is necessary. 2. provisions Answer: Option B Explanation: Provisions imply the general supplies needed, so choice b is the essential element. The other choices are byproducts, but they are not essential. 3. infirmary A. | surgery | B. | disease | C. | patient | D. | receptionist |
Answer: Option C Explanation: An infirmary is a place that takes care of the infirm, sick, or injured.Without patients, there is no infirmary. Surgery (choice a) may not be required for patients. A disease (choice b) is not necessary because the infirmary may only see patients with injuries. A receptionist (choice d) would be helpful but not essential. 4. sustenance Answer: Option A Explanation: Sustenance is something, especially food, that sustains life or health, so nourishment is the essential element.Water and grains (choices b and c) are components of nourishment, but other things can be taken in as well. A menu (choice d) may present a list of foods, but it is not essential to sustenance. 5. purchase Answer: Option D Explanation: A purchase is an acquisition of something. A purchase may be made by trade (choice a) or with money (choice b), so those are not essential elements. A bank (choice c) may or may not be involved in a purchase. 6. dimension Answer: Option D Explanation: A dimension is a measure of spatial content. A compass (choice a) and ruler (choice b) may help determine the dimension, but other instruments may also be used, so these are not the essential element here. An inch (choice c) is only one way to determine a dimension. 7. bonus Answer: Option A Explanation: A bonus is something given or paid beyond what is usual or expected, so reward is the essential element. A bonus may not involve a raise in pay or cash (choices b and c), and it may be received from someone other than an employer (choice d). 8. culture A. | civility | B. | education | C. | agriculture | D. | customs |
Answer: Option D Explanation: A culture is the behavior pattern of a particular population, so customs are the essential element. A culture may or may not be civil or educated (choices a and b). A culture may be an agricultural society (choice c), but this is not the essential element. 9. knowledge Answer: Option D Explanation: Knowledge is understanding gained through experience or study, so learning is the essential element. A school (choice a) is not necessary for learning or knowledge to take place, nor is a teacher or a textbook (choices b and c). 10. harvest Answer: Option D Explanation: To harvest something, one must have a crop, which is the essential element for this item. Autumn (choice a) is not the only time crops are harvested. There may not be enough of a crop to stockpile (choice b), and you can harvest crops without a tractor (choice c). 11. desert Answer: Option B Explanation: A desert is an arid tract of land. Not all deserts are flat (choice d). Not all deserts have cacti or oases (choices a and c). 12. book Answer: Option B Explanation: The necessary part of a book is its pages; there is no book without pages. Not all books are fiction (choice a), and not all books have pictures (choice c). Learning (choice d) may or may not take place with a book 13. language Answer: Option D Explanation: Words are a necessary part of language. Slang is not necessary to language (choice b). Not all languages are written (choice c).Words do not have to be spoken in order to be part of a language (choice a). 14. school Answer: Option A Explanation: Without students, a school cannot exist; therefore, students are the essential part of schools. The other choices may be related, but they are not essential. 15. gala A. | celebration | B. | tuxedo | C. | appetizer | D. | orator |
Answer: Option A Explanation: A gala indicates a celebration, the necessary element here. A tuxedo (choice b) is not required garb at a gala, nor is an appetizer (choice c). A gala may be held without the benefit of anyone speaking (choice d). 16. monopoly Answer: Option B Explanation: The essential part of a monopoly is that it involves exclusive ownership or control. 17. pain Answer: Option D Explanation: Pain is suffering or hurt, so choice d is the essential element. Without hurt, there is no pain. A cut (choice a) or a burn (choice b) may cause pain, but so do many other types of injury. A nuisance (choice c) is an annoyance that may or may not cause pain. 18. election Answer: Option B Explanation: An election does not exist without voters. The election of a president (choice a) is a byproduct. Not all elections are held in November (choice c), nor are they nationwide (choice d). 19. shoe Answer: Option A Explanation: All shoes have a sole of some sort.Not all shoes are made of leather (choice b); nor do they all have laces (choice c).Walking (choice d) is not essential to a shoe. 20. swimming A. | pool | B. | bathing suit | C. | water | D. | life jacket |
Answer: Option C Explanation: Water is essential for swimming-without water, there is no swimming. The other choices are things that may or may not be present.
SpellingsEXERCISE I Find the correctly spelt words. 1. (solve as per the direction given above) A. | Indipensable | B. | Indipenseble | C. | Indispansible | D. | Indispensable |
Answer: Option D 2. (solve as per the direction given above) A. | Itinarery | B. | Itinerary | C. | Itenary | D. | Itinarary |
Answer: Option B Explanation: Itinerary - of a trip, of a journey, of travelling, of the route taken on a journey. 3. (solve as per the direction given above) A. | Survaillance | B. | Surveillance | C. | Survellance | D. | Surveilance |
Answer: Option B Explanation: Surveillance - careful observation of a person or group, supervision. 4. (solve as per the direction given above) A. | Sepulchral | B. | Sepilchrle | C. | Sepalchrul | D. | Sepalchrl |
Answer: Option A Explanation: Sepulchral - pertaining to a grave or tomb. (or) serving as a grave or tomb. 5. A. Judicious B. Cancious C. Dilicous D. Gracous Answer: Option A 6.A. Klaptomania B. Klepptomania C. Kleptemania D. Kleptomania Answer: Option D Explanation: Kleptomania: A recurrent urge to steal, typically without regard for need or profit. 7. A. | Eflorescence | B. | Efllorescence | C. | Efflorescence | D. | Efflorascence |
Answer: Option C Explanation: Efflorescence - flowering, blossoming 8. A. | Exterminatte | B. | Inexpliccable | C. | Offspring | D. | Reffere |
Answer: Option C 9. A. | Treachrous | B. | Trecherous | C. | Trechearous | D. | Treacherous |
Answer: Option D Explanation: Treacherous means guilty of or involving betrayal or deception. 10. A. | Rigerous | B. | Rigourous | C. | Regerous | D. | Rigorous |
Answer: Option D 11. A. | Treachrous | B. | Trecherous | C. | Trechearous | D. | Treacherous |
Answer: Option D Explanation: Treacherous means guilty of or involving betrayal or deception. 12. A. | Rigerous | B. | Rigourous | C. | Regerous | D. | Rigorous |
Answer: Option D 13. Answer: Option C 14. Answer: Option C Explanation: Bouquet - bunch of flowers, nosegay, fragrance of a wine, compliment. 15. A. | Chancelary | B. | Chancellery | C. | Chancelery | D. | Chancellary |
Answer: Option B
EXERCISE II In each questions below five words are given. Find out that word, the spelling of which is WRONG. The letter of that word is the answer. If all the four words are spelt correctly, the answer is 'E', i.e., "All Correct". 1. (solve as per the direction given above) A. | Immature | B. | Imminent | C. | Ilicit | D. | Imperative | E. | All correct |
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Answer: Option C Explanation: Illicit 2. A. | Quarreled | B. | Rebellious | C. | Commission | D. | Mirraculous | E. | All correct |
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Answer: Option D Explanation: Miraculous 3. A. | Lenient | B. | Nationalism | C. | Overhaul | D. | Transfered | E. | All correct |
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Answer: Option D Explanation: Transferred 4. Answer: Option C Explanation: Dispute 5. Answer: Option C Explanation: Purge 6. A. | Aristocracy | B. | Prophecy | C. | Beaureacuracy | D. | Democracy | E. | All correct |
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Answer: Option C Explanation: Bureaucracy 7. A. | Narrator | B. | Overseer | C. | Pretence | D. | Licence | E. | All correct |
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Answer: Option E 8. A. | Burglar | B. | Designation | C. | Controversy | D. | Ratificasion | E. | All correct |
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Answer: Option D Explanation: Ratification 9. (solve as per the direction given above) A. | Periphery | B. | Advurtise | C. | Courteous | D. | Indefinite | E. | All correct |
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Answer: Option B Explanation: Advertise 10.
A. | Psychologist | B. | Psychaitrist | C. | Physiologist | D. | Psychoanalyst | E. | All correct |
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Answer: Option B Explanation: Psychiatrist 11.
A. | Geography | B. | History | C. | Chemistry | D. | Commerce | E. | All correct |
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Answer: Option E 12. Answer: Option A Explanation: Amateur 13.
A. | Appraise | B. | Commend | C. | Mentanence | D. | Behavior | E. | All correct |
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Answer: Option C Explanation: Maintenance 14.
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A. | Inflamable | B. | Musician | C. | Righteousness | D. | Negotiate | E. | All correct |
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Answer: Option A Explanation: Inflammable 15.
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Answer: Option D Explanation: Tuition |
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Spotting Errors
1. Read the each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is 'D'. (Ignore the errors of punctuation, if any).
1 |
A. | If I had known | B. | this yesterday | C. | I will have helped him. | D. | No error. |
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Answer: Option C
Explanation: I would have helped him
2.
A. | A lot of travel delay is caused | B. | due to the inefficiency and lack of good management | C. | on behalf of the railways. | D. | No error. |
Answer: Option C Explanation: on the part of the railways |
3.A. | One of the members | B. | expressed doubt if | C. | the Minister was an athiest. | D. | No error. |
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Answer: Option B
Explanation: expressed doubt that
4.
A. | I have got | B. | my M.Sc. degree | C. | in 1988. | D. | No error. |
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Answer: Option A
Explanation: I got
5.
(solve as per the direction given above) |
A. | Having received your letter | B. | this morning, we are writing | C. | to thank you for the same. | D. | No error. |
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Answer: Option D
6.
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A. | If you lend him a book | B. | he will lend it to some one else | C. | and never you will get it back. | D. | No error. |
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Answer: Option C
Explanation: and you will never get it back
7.
A. | Block of Residential flats | B. | are coming up | C. | near our house. | D. | No error |
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Answer: Option D
Explanation:
Blocks of Residential flats
8.
A. | Do the roses in your garden smell | B. | more sweetly | C. | than those in ours? | D. | No error. |
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Answer: Option B
Explanation: sweeter
9.
A. | According to the Bible | B. | it is meek and humble | C. | who shall inherit the earth. | D. | No error. |
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Answer: Option B
Explanation: It is the meek and the humble
10.
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A. | None of the students attending your class | B. | answered your questions | C. | did they? | D. | No error. |
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Answer: Option C
Explanation: 'did one' or 'did any'
11.
A. | He is working in | B. | a bank in New Delhi | C. | for the past several months. | D. | No error. |
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Answer: Option A
Explanation:
He has been working in
12.
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A. | A large scale exchange of nuclear weapons | B. | will produce unprecedented amounts of radiation | C. | that can penetrate into the biological tissue. | D. | No error. |
Answer: Option C Explanation: that can penetrate the biological tissue |
13.
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A. | The person which was | B. | recommended for the position | C. | did not fulfil the prescribed qualifications. | D. | No error. |
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Answer: Option A
Explanation:
The person who was
14.
A. | Supposing if | B. | there is no bus. | C. | how will you get there? | D. | No error. |
Answer: Option A Explanation: if 15.
A. | One of my favourite actor | B. | is acting | C. | in this play also. | D. | No error. |
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Answer: Option A Explanation: one of my favourite actors 16.
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A. | Emphasis on equality of life ensures | B. | for the health and happiness | C. | of every individual. | D. | No error. |
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Answer: Option B
Explanation: the health and happiness
17.
A. | Because of the emergency help | B. | that the patient received | C. | he would have died | D. | No error. |
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Answer: Option C
Explanation: But for emergency help
18.
A. | He was in such hurry | B. | that he didn't | C. | wait for me | D. | No error. |
Answer: Option A Explanation: He was in such a hurry. |
19.
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A. | Few scientists changed | B. | people's ideas as much as | C. | Darwin with his Theory of Evolution. | D. | No error. |
Answer: Option A Explanation: Few scientists have changed 20.
A. | The course provide | B. | not only theoretical inputs | C. | but also practical training | D. | No error. |
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Answer: Option A Explanation: The course provides Ordering Of WordsIn each question below, there is a sentence of which some parts have been jumbled up. Rearranage these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence. |
1.
In the darkness P : | the long, narrow beard | Q : | was clearly visible with | R : | the tall stooping figure of the doctor | S : | and the aquiline nose |
The Proper sequence should be: |
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Answer: Option A
2.
We have to P : | as we see it | Q : | speak the truth | R : | there is falsehood and weakness | S : | even if all around us |
The Proper sequence should be: |
Answer: Option D 3.
| It is not, therefore P : | that I pay a tribute | Q : | to conductors as a class | R : | with any feeling of unfriendliness | S : | to a particular member of that class |
The Proper sequence should be: |
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Answer: Option C 4. He knew that P : | and then to save himself | Q : | was to save all the lives | R : | entrusted to his care | S : | the duty of a captain |
The Proper sequence should be: |
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Answer: Option B
5.
He told us that P : | and enjoyed it immensely | Q : | in a prose translation | R : | he had read Milton | S : | which he had borrowed from his teacher |
The Proper sequence should be: |
Answer: Option C 6. When it began to rain suddenly on the first of January P : | to celebrate the new year | Q : | we ran for shelter | R : | to the neighbouring house | S : | where many people had gathered |
The Proper sequence should be: |
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Answer: Option D 7.
| Of many artists P : | those who impressed me the most | Q : | I was a child | R : | but those with unique personalities off stage | S : | were not always the successful ones |
The Proper sequence should be: |
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Answer: Option D 8.
| It is easy to excuse P : | but it is hard | Q : | in a boy of fourteen | R : | the mischief of early childhood | S : | to tolerate even unavoidable faults |
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The Proper sequence should be: |
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Answer: Option D 9.
| The majestic mahogany table P : | belongs to an old prince | Q : | which has one leg missing | R : | who is no impoverished | S : | but not without some pride |
The Proper sequence should be: |
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Answer: Option D
10.
| It would P : | appear from his statement | Q : | about the policy of management | R : | in dealing with the strike | S : | that he was quite in the dark |
The Proper sequence should be: |
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Answer: Option B
11.
Education is P : | of the proper sense of responsibilities | Q : | the first need | R : | in a citizen | S : | for the development |
The Proper sequence should be: |
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Answer: Option C
12.
He was so kind and generous that P : | he not only | Q : | made others do so | R : | but also | S : | helped them himself |
The Proper sequence should be: |
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Answer: Option A
13.
We went P : | along the railway line | Q : | and had a right to | R : | where other people not allowed to go | S : | but daddy belonged to the railway |
The Proper sequence should be: |
Answer: Option B 14. There was P : | needed for it everyday life | Q : | a time when each family | R : | for itself most of the things it | S : | actually produced |
The Proper sequence should be: |
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Answer: Option D 15.
| Little P : | that he had been let down | Q : | stood by all these years | R : | did he realise | S : | by a colleague whom he had |
The Proper sequence should be: |
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Answer: Option A 16. It is very easy P : | a great deal more than one realises | Q : | may mean | R : | that a phrase that one does not quite understand | S : | to persuade oneself |
The Proper sequence should be: |
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Answer: Option B
17. work is the one thing P : | and without it | Q : | that is necessary | R : | to keep the world going | S : | we should all die |
The Proper sequence should be: |
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Answer: Option D
18.
The appearance P : | this dinosaurs were at their peak | Q : | of the first mammals on the earth | R : | at the time when | S : | went almost unnoticed |
The Proper sequence should be: |
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Answer: Option C
19.
By this time P : | at the railway station | Q : | reported mass looting | R : | reports of violence were flooding in | S : | which police dispatches |
The Proper sequence should be: |
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Answer: Option C
20.
Women P : | till the other day | Q : | who were content being housewives | R : | about spending their time cooking | S : | now sound apologetic |
The Proper sequence should be: |
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Answer: Option C
Sentence Correction
Which of phrases given below each sentence should replace the phrase printed in bold type to make the grammatically correct? If the sentence is correct as it is, mark 'E' as the answer.
1.
He is too important for tolerating any delay. |
A. | to tolerate | B. | to tolerating | C. | at tolerating | D. | with tolerating | E. | No correction required |
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Answer: Option A 2. The population of Tokyo is greater than that of any other town in the world. |
A. | greatest among any other | B. | greater than all other | C. | greater than those of any other | D. | greater than any other | E. | No correction required |
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Answer: Option E
3.
The performance of our players was rather worst than I had expected. |
A. | bad as I had expected | B. | worse than I had expected | C. | worse than expectation | D. | worst than was expected | E. | No correction required |
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Answer: Option B
4.
Why did you not threw the bag away? |
A. | did you not throw | B. | had you not threw | C. | did you not thrown | D. | you did not thrown | E. | No correction required |
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Answer: Option A 5. Shapes of gods and goddess are worshipped by people. |
A. | Images | B. | Reflections | C. | Clay shapes | D. | Clay toys | E. | No correction required |
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Answer: Option A 6. The intruder stood quietly for few moments |
A. | for few time | B. | for the few moments | C. | for moments | D. | for a few moments | E. | No correction required |
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Answer: Option D 7.
| The police has so far succeeded in recovering only a part of the stolen property. |
A. | thus far succeeded for recovery | B. | so far succeeded in recovery of | C. | as for as succeeded in recovery of | D. | so far succeeded to recover | E. | No correction required |
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Answer: Option E 8. Despite of their differences on matters of principles, they all agree on the demand of hike is salary? |
A. | Despite their | B. | Despite of the | C. | Despite for their | D. | Despite off their | E. | No correction required |
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Answer: Option A 9. The world has seen small real attempt at population and resource planning. |
A. | Few | B. | little | C. | Less | D. | a few | E. | No correction required |
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Answer: Option B 10. We don't know how did the thief made an escape. |
A. | how the thief did make | B. | how the thief does make | C. | how the thief made | D. | how was the thief made | E. | No correction required |
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Answer: Option C
11.
| Their earnings are such that they find it difficult to make both ends to meet. |
A. | to makings both ends meet | B. | to make both ends for meeting | C. | to make both ends meet | D. | for making both ends to meet | E. | No correction required |
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Answer: Option C
12.
One of the most significant phenomenonsof our time has been the development of cinema. |
A. | phenomenon | B. | Phenomena | C. | phenomenonna | D. | Phenomenonns | E. | No correction required |
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Answer: Option B 13. This is one of the most important inventions of this century. |
A. | invention of this century | B. | invention of these century | C. | invention of centuries | D. | invention of the centuries | E. | No correction required |
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Answer: Option E 14. If you are thinking about investigation overseas, isn't it makes sense to find an experience guide? |
A. | it is not making | B. | doesn't it make | C. | does it make | D. | is it making | E. | No correction required |
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Answer: Option B Sentence Improvement In questions given below, a part of the sentence is italicized and underlined. Below are given alternatives to the italicized part which may improve the sentence. Choose the correct alternative. In case no improvement is needed, option 'D' is the answer. 1. Will you kindly open the knot? |
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Answer: Option A 2. He sent a word to me that he would be coming late. |
A. | sent word | B. | had sent a word | C. | sent words | D. | No improvement |
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Answer: Option A |
3.
While crossing the highway a five year old child was knocked out by a passing car. |
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Answer: Option C
4.
More than one person was killed in accident. |
A. | were killed | B. | are killed | C. | have been killed | D. | No improvement |
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Answer: Option A
5.
| Five years ago today, I am sitting in a small Japanese car, driving across Poland towards Berlin. |
A. | was sitting | B. | sat | C. | have been sitting | D. | No improvement |
Answer: Option A 6. Please make it a point to send you letter at my address. |
A. | on my address | B. | to my address | C. | in my address | D. | No improvement |
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Answer: Option B 7. If you are living near a market place you should be ready to bear the disturbances caused by traffic. |
A. | to bear upon | B. | to bear with | C. | to bear away | D. | No improvement |
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Answer: Option B 8. I hope you won't object to me watching while you work. |
A. | against me watching | B. | me to watch | C. | to my watching | D. | No improvement |
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Answer: Option C 9. You cannot forbid him leaving. |
A. | he leaving | B. | his leaving | C. | him to leave | D. | No improvement |
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Answer: Option C 10. You have come here with a view to insult me. |
A. | to insulting me | B. | of insulting me | C. | for insulting me | D. | No improvement |
Answer: Option A 11. 20 kms are not a great distance in these days of fast moving vehicles. |
A. | is not a great distance | B. | is no distance | C. | aren't a great distance | D. | No improvement |
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Answer: Option A 12. It became clear that the strangers were heading into a serious disaster. |
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Answer: Option B 13. The dissidents hold a great problem in every political party. |
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Answer: Option A 14.
| I would have waited for you at the station if I knew that you would come. |
A. | had known | B. | was knowing | C. | have known | D. | No improvement |
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Answer: Option A 15. Practically every part of the banana tree is used by man. |
A. | each part | B. | any part | C. | most part | D. | No improvement |
Answer: Option D 16. My opinion for the film is that it will bag the national ward. |
A. | opinion to | B. | opinion about | C. | opinion on | D. | No improvement |
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Answer: Option B
Completing StatementsIn each question, an incomplete statement (Stem) followed by fillers is given. Pick out the best one which can complete incomplete stem correctly and meaningfully. 1. It is not easy to remain tranquil when those around you ...... |
A. | behave in a socially acceptable manner | B. | exhibit pleasant mannerism | C. | are losing their heads | D. | agree to whatever you say | E. | exhibit generous and magnanimous gestures |
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Answer: Option C 2. Although initial investigations pointed towards him ...... |
A. | the preceding events corroborated his involvement in the crime | B. | the additional information confirmed his guilt | C. | the subsequent events established that he was guilt | D. | the subsequent events proved that he was innocent | E. | he gave an open confession of his crime |
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Answer: Option D 3.
| The weather outside was extremely pleasant and hence we decided to ...... |
A. | utilise our time in watching the television | B. | refrain from going out for a morning walk | C. | enjoy a morning ride in the open | D. | employ this rare opportunity for writing letters | E. | remain seated in our rooms in the bungalow |
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Answer: Option C 4. Although, he is reputed for making very candid statements ...... |
A. | his today speech was not fairly audible | B. | his promises had always been realistic | C. | his speech was very interesting | D. | people follow whatever he instructs to them | E. | his today's statements were very ambiguous |
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Answer: Option E 5. | "Anand stuck up a friendship with Mahesh in just 2 days" means ...... |
A. | Anand friendship with Mahesh came to an end recently | B. | Anand found out the other friends of Mahesh | C. | Anand fixed a deal with Mahesh in 2 days | D. | Anand's friendship with Mahesh lasted for 2 years | E. | Anand became a friend of Mahesh in less than 2 days |
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Answer: Option E 6.
| "It is an uphill task but you will have to do it" means ...... |
A. | The work is above the hill and you will have to do it | B. | It is a very easy task but you must do it | C. | It is very difficult task but you have to do it | D. | This work is not reserved for you but you will have to do it | E. | It is almost impossible for others but you can do it |
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Answer: Option C
7.
The manager would like you to help Dhiraj, means ...... |
A. | the manager would like you if you help Dhiraj | B. | the manager desires you to help Dhiraj | C. | the manager likes you because you help Dhiraj | D. | Dhiraj expects the manager to tell you to help him | E. | it will be a help to the manager if you like Dhiraj |
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Answer: Option B
8.
Owing to the acute power shortage, the people of our locality have decided to ...... |
A. | dispense with other non-conventional energy sources | B. | resort to abundant use of electricity for illumination | C. | off-switch the electrical appliance while not in use | D. | explore other avenues for utilising the excess power | E. | resort to use of electricity only when it is inevitable |
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Answer: Option E
9.
He has no money now ...... |
A. | although he was very poor once | B. | as he has given up all his wealth | C. | because he was very rich once | D. | because he has received huge donation | E. | because he was very greedy about wealth |
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Answer: Option B
10.
| He is so lazy that he ...... |
A. | cannot depend on others for getting his work done | B. | cannot delay the schedule of completing the work | C. | can seldom complete his work on time | D. | dislike to postpone the work that he undertakes to do | E. | always help others to complete their work |
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Answer: Option C
11.
Dinesh is as stupid as he is lazy means ...... |
A. | Dinesh is stupid because he is lazy | B. | Dinesh is lazy because he is stupid | C. | Dinesh is either stupid or lazy | D. | Dinesh is hardly stupid but he is lazy | E. | Dinesh is equally stupid and lazy |
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Answer: Option E
12.
Practically, very little work could be completed in the last week as it was ...... |
A. | full of working days | B. | a very hectic week | C. | full of holidays | D. | a very busy week | E. | loaded with work |
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Answer: Option C |
13.
Because he believes in democratic principles, he always ...... |
A. | decides all the matters himself | B. | listen to others views and enforces his own | C. | shown respect to others opinions if they match his own | D. | reconciles with the majority views and gives us his own | E. | imposes his own views on others |
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Answer: Option D
14.
The employer appeared to be in such an affable mood that Rohit ...... |
A. | decided to ask for a raise in his salary | B. | was scared to talk to him about his leave | C. | felt very guilty for his inadvertent slip | D. | promised him that he would not commit mistake again | E. | was pained to press his demand for a new flat. |
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Answer: Option A
15.
He always stammers in public meetings, but his today's speech ...... |
A. | was fairly audible to everyone present in the hall | B. | was not received satisfactorily | C. | could not be understood properly | D. | was not liked by the audience | E. | was free from that defect |
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Answer: Option E
16.
Even though it is very large house, ...... |
A. | there is a lot of space available in it for children | B. | there is hardly any space available for children | C. | there is no dearth of space for children | D. | the servants take a long time to clean it | E. | the municipal taxes on it are very happy |
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Answer: Option B
Sentence Formation
In each question below a sentence broken into five or six parts. Join these parts to make a meaningful sentence. The correct order of parts is the answer.
1.
1. at | 2. it | 3. take | 4. once | 5. away | |
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Answer: Option C
Explanation:"Take it away at once."
2.
1. him | 2. the | 3. to | 4. charge | 5. handover | |
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Answer: Option E
Explanation:"Handover the charge to him."
3.
1. seen | 2. going | 3. you | 4. him | 5. have | |
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Answer: Option B
Explanation:"You have seen him going."
4.
1. bag | 2. you | 3. seen | 4. have | 5. my | |
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Answer: Option C
Explanation:"Have you seen my bag."
5.
1. killed | 2. a | 3. Jaswant | 4. bear | 5. wild | |
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Answer: Option A
Explanation:"Jaswant killed a wild bear."
6.
1. not | 2. Hari | 3. away | 4. run | 5. did | |
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Answer: Option D
Explanation:"Hari did not run away."
7.
1. I | 2. help | 3. not | 4. you | 5. did | |
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Answer: Option B
Explanation:"I did not help you."
8. 1. not | 2. hotel | 3. comfortable | 4. was | 5. the | |
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Answer: Option E
Explanation:"The hotel was not comfortable."
9. 1. tea | 2. have | 3. that | 4. some | 5. before | |
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Answer: Option C
Explanation:"Have some tea before that."
10. 1. was | 2. and | 3. Suresh | 4. kind | 5. loving | |
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Answer: Option A
Explanation: "Suresh was kind and loving."
Paragraph Formation
Rearrange the following five sentences in proper sequence so as to for a meaningful paragraph, then answer the questions given below them.
1. | Participation involves more than the formal sharing of decisions. Through anticipation, individuals or organisations consider trends and make plans, shielding institutions from trauma of learning by shock. Innovative learning involves both anticipation and participation. It is an attitude characterised by cooperation, dialogue and empathy.
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Answer: Option D 2. 2. But, we all helped in the first few days. Chandrapur is considered as a rural area. Manohar was transferred to his office recently. Initially he was not getting adjusted to the city life. Now, Manohar is very proud of his colleagues. Before that he was working in chandrapur branch of our office.
ANSWER : 362415 3. |
A Study to this effects suggests that the average white-collar worker demonstrates only about 25% listening efficiency.
However for trained and good listeners it is not unusual to use all the three approaches during a setting, thus improving listening efficiency.
There are three approaches to listening: Listening for comprehension, Listening for empathy and Listening for evaluation.
Although we spend nearly half of each communication interaction listening, we do not listen well.
Each approach has a particular emphasis that may help us to receive and process informationin different settings.
ANSWER :35241
4.
John did not have the money to buy the beautiful clip.
After a while, Jane explained to John that she had sold her hair to buy a gold chain for his watch.
As it was Christmas, john want to give Jane a surprise present.
When Jane saw it, she felt like crying.
He decided to present her a clip made of ivory for her long flowing hair.
He, therefore sold off his watch and brought home the present
ANSWER :351642
5.
The means and methods they employ to deal with public pressures are also different.
They will make no move unless the gallery is packed.
The poorest are over-hesitant, evasive and preoccupied with their relationships with others.
Enourmous difference is generally observed in the ways in which various public officials respond to public pressures.
The best possess understanding of forces that must be taken in to account, determination not to be swerved from the path of public interest.
They confront all embarrassments with a state general formula.
ANSWER : 413526
6.
6. In his literacy work he spoke of that province of human life which mere intellect does not speak.
He has also given innocent joy to many children by his stories like 'Kabuliwalah'
These songs are sung not only in bengal but all over the country.
Rabindranath's great works sprang from intensity of vision and feelings.
He sang of beauty and heroism, nobility and charm.
ANSWER :41253
7.
But by then it was too late to correct things.
It is impossible to steer such a large project to success without planning.
He had to standby and watch helplessly.
The whole scheme was destined, to fail from the beginning.
Bhaskar started realising this only towards the end.
ANSWER :42513
8.
Would you steal a software programme out of retail shop?
The industry on its part has formed an organisation to specially gather information, educate and drag and software pirates to courts.
But more than the legality, there is always a different way of looking at piracy and that is in terms of morality.
The Government on the other hand has initiated National Enforcements Committees.
As far as the issue of tackling piracy is concerned, both the industry and government have already started initiating action.
ANSWER :52431
Ordering Of Sentences
In questions below, each passage consist of six sentences. The first and sixth sentence are given in the begining. The middle four sentences in each have been removed and jumbled up. These are labelled as P, Q, R and S. Find out the proper order for the four sentences.
1.
S1: | You know my wife, Madhavi, always urged me to give up smoking. | P : | I really gave it up. | Q : | And so When I went to jail I said to myself I really must give it up, if for no other reason than of being self-reliant. | R : | When I emerged from jail, I wanted to tell her of my great triumph. | S : | But when I met her, there she was with a packet of cigarettes. | S6: | poor girl!. |
The Proper sequence should be: |
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Answer: Option C
2. S1: | When a satellite is launched, the rocket begins by going slowly upwards through the air. | P : | However, the higher it goes, the less air it meets. | Q : | As the rocket goes higher, it travels faster. | R : | For the atmosphere becomes thinner. | S : | As a result there is less friction. | S6: | Consequently, the rocket still does not become too hot. |
The Proper sequence should be: |
Answer: Option A
S1: | A father having offered to take the baby out in a perambulator, was tempted by the sunny morning to slip into a pub for a glass of beer. | P : | Indignant at her husband's behaviour, she decided to teach him a lesson. | Q : | She wheeled away the pram. | R : | A little later, his wife came by, where to her horror, she discovered her sleeping baby. | S : | Leaving the pram outside, he disappeared inside the bar. | S6: | She waited for him, anticipating the white face and quivering lips which would soon appear with the news that the baby had been stolen. |
The Proper sequence should be: |
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Answer: Option A 4.
S1: | For some time in his youth Abraham Lincoln was manager for a shop. | P : | Then a chance Customer would come. | Q : | Young Lincoln way of keeping shop was entirely unlike anyone else's | R : | Lincoln would jump up and attend to his needs and then revert to his reading. | S : | He used to lie full length on the counter of the shop eagerly reading a book. | S6: | Never before had Lincoln had so much time for reading as had then. |
The Proper sequence should be: |
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Answer: Option B 5.
S1: | The city is almost a slum and stinks most of time. | P : | The slush on the road did not deter them. | Q : | The occasional slips and falls were considered a small price to pay for the trip. | R : | They were excited, fascinated by the sight of fresh snow on the roads. | S : | Even so, it looked beautiful to tourists of various categories. | S6: | But some visitors came away with the unforgettable sight of young labours scantily clad. |
The Proper sequence should be: |
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Answer: Option D
6.
S1: | Venice is a strange and beautiful city in the north of Italy. | P : | There are about four hundred old stone bridges joining the island of Venice. | Q : | In this city there are no motor cars, no horses, no buses. | R : | These small islands are near one another. | S : | It is not an island but a hundred and seventeen islands. | S6: | This is because Venice has no streets. |
The Proper sequence should be: |
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Answer: Option C
7. S1: | Ants eat worms, centipedes and spiders. | P : | They are usually much quicker than the ant itself. | Q : | Nevertheless, these animals do not make easy game for ants. | R : | Besides, they have an extraordinary number of ways of escaping. | S : | They also eat larvae and insect adults such as flies, moths and spring tails. | S6: | Some jump, and some give out a pungent repellent substance. |
The Proper sequence should be: |
Answer: Option A
8. S1: | The Hound of Baskervilles was feared by the people of the area. | P : | Some people spoke of seeing a huge, shadowy form a Hound at midnight on the moor. | Q : | But they spoke of it in tones of horror. | R : | Nobody had actually seen the hound. | S : | This shadowy form did not reveal any details about the animal. | S6: | The Hound of Baskervilles remains an unsolved mystery. |
The Proper sequence should be: |
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Answer: Option D
9. S1: | A gentleman who lived alone always had two plates placed on the table at dinner time. | P : | One day just as he sat down to dine, the cat rushed in to the room. | Q : | One plate was for himself and other was for his cat. | R : | she drooped a mouse into her own plate and another into her master plate. | S : | He used to give the cat a piece of meat from his own plate. | S6: | In this way the cat showed her gratitude to her master. |
The Proper sequence should be: |
Answer: Option A
10.s1 :While crossing the busy road, we should obey the policeman on duty P: we should always cross the road at the zebra crossing Q:we must look to the signal lights and cross the road only when the road is clear R. if there are no signal lights at the crossing, we should look to the right , then to the left and again the right before crossing the road S. if the road is not clear we should wait s6: we should never run while crossing the road the proper sequence should be Answer unavailable
11. S1: | Calcutta unlike other cities kepts its trams. | P : | As a result there horrendous congestion. | Q : | It was going to be the first in South Asia. | R : | They run down the centre of the road | S : | To ease in the city decided to build an underground railway line. | S6: | The foundation stone was laid in 1972. |
The Proper sequence should be: |
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Answer: Option D
12. S1: | Satyajit Ray made several films for children. | P : | Later film makers have followed his lead. | Q : | Today other nations are making the children's film in a big way. | R : | This was at a time when no director considered children as potential audience. | S : | Ray was, thus, a pioneer in the field. | S6: | But today few think of Ray as a maker of children's films. |
The Proper sequence should be: |
Answer: Option C
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Comprehension
1. In the world today we make health and end in itself. We have forgotten that health is really means to enable a person to do his work and do it well. a lot of modern medicine and this includes many patients as well as many physicians pays very little attention to health but very much attention to those who imagine that they are ill. Our great concern with health is shown by the medical columns in newspapers. the health articles in popular magazines and the popularity of television programmes and all those books on medicine. We talk about health all the time. Yet for the most part the only result is more people with imaginary illness. The healthy man should not be wasting time talking about health: he should be using health for work. The work does the work that good health possible.
1. | Modern medicine is primarily concerned with |
A. | promotion of good health | B. | people suffering from imaginary illness | C. | people suffering from real illness | D. | increased efficiency in work |
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Answer: Option B
2. | The passage suggests that |
A. | health is an end in itself | B. | health is blessing | C. | health is only means to an end | D. | we should not talk about health |
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Answer: Option C
3. | Talking about the health all time makes people |
A. | always suffer from imaginary illness | B. | sometimes suffer from imaginary illness | C. | rarely suffer from imaginary illness | D. | often suffer from imaginary illness |
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Answer: Option D
4. | The passage tells us |
A. | how medicine should be manufactured | B. | what healthy man should or should not do | C. | what television programmes should be about | D. | how best to imagine illness |
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Answer: Option B
5. | A healthy man should be concerned with |
A. | his work which good health makes possible | B. | looking after his health | C. | his health which makes work possible | D. | talking about health |
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Answer: Option A
2. The object underlying the rules of natural justice "is to prevent miscarriage of justice" ans secure "fair play in action" As pointed out earlier the requirement about recording of reasons for its decision by an administrative authority exercising quasi-judicial functions achieves his object by excluding changes of arbitrariness and ensuring a degree of fairness in the process of decision making. Keeping in view the expanding horizon of the principle of natural justice which govern exercise of power by administrative authorities. The rules of natural justice are not embodied rules. The extent of their application depends upon the particularly statutory framework where under jurisdication has been conferred on the administrative authority. with regard to the exercise of particular power by an administrative authority including exercise of judicial or quasi-judicial functions the legislature, while conferring the said power, may feel that it would not be in the larger public interest that the reasons for the order passed by the administrative authority be recorded in the order and be communicated to the aggrieved party and it may dispense with such a requirement.
1. | "The rules of the natural justice are not embodies rules" means that these rules |
A. | are left deliberately vague | B. | cannot be satisfactorily interpreted | C. | are flexible | D. | cannot be visualised |
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Answer: Option C
2. | From the passage it is clear that it is the legislature that |
A. | invests the administrative authority with enormous powers | B. | embodies rules | C. | has the larger interests of public welfare | D. | leaves administrative authority enough discretion to interpret rules |
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Answer: Option A
3. | According to the passage, there is always a gap between |
A. | rules of natural justice and their application | B. | conception of a rule and its concretization | C. | demand for natural justice and its realization | D. | intention and execution |
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Answer: Option A
4. | "To dispense with a requirement" means |
A. | to do without the demand | B. | to drop the charge | C. | to cancel all formal procedure | D. | to alter the provisions of the case |
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Answer: Option A
5. | According to the passage, natural justice can be brought about by |
A. | administrative authority remaining vigilant | B. | administrative authority upholding rules of natural justice | C. | administrative authority farming rules suitably | D. | administrative authority observing the rules of fair play |
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Answer: Option D
3. It is to progress in the human sciences that we must look to undo the evils which have resulted from a knowledge of physical world hastily and superficially acquired by population unconscious of the changes in themselves that the new knowledge has imperative. The road to a happier world than any known in the past lies open before us if atavistic destructive passions can be kept in leash while the necessary adaptations are made. Fears are inevitable in time, but hopes are equally rational and far more likely to bear good fruit. We must learn to think rather less of the dangers to be avoided than of the good that will lie within our grasp if we can believe in it and let it dominate our thoughts. Science, whatever unpleasant consequences it may have by the way, is in its very nature a liberator, a liberator of bondage to physical nature and in time to come, a liberator from the weight of destructive passions. We are on the threshold of utter disaster or unprecedentely glorious achievement. No previous age has been fraught with problems so momentous; and it is to science that we must look to for a happy future.
1. | What does science liberate s from? It is liberate us from |
A. | fears and destructive passions | B. | slavery to physical nature and from passions | C. | bondage to physical nature | D. | idealistic hopes of glorious future |
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Answer: Option B
2. | Should human sciences be developed because they will |
A. | provide more knowledge of the physical word | B. | make us conscious of the changing world | C. | make us conscious of the changing in ourselves | D. | eliminate the destruction caused by a superficial knowledge of the physical world |
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Answer: Option D
3. | If man's bestial yearning is controlled |
A. | the future will be tolerable | B. | the future will be brighter than the present | C. | the present will be brighter than the future | D. | the present will become tolerable |
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Answer: Option B
4. | Fears and hopes according to the author |
A. | are closely linked with the life of modern man | B. | can bear fruit | C. | can yield good results | D. | are irrational |
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Answer: Option A
5. | To carve out a bright future man should |
A. | analyse dangers that lie ahead | B. | try to avoid dangers | C. | overcome fear and dangers | D. | cultivate a positive outlook |
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Answer: Option D
4. The strength of the electronics industry in Japan is the Japanese ability to organise production and marketing rather than their achievements in original research. The British are generally recognised as a far more inventive collection of individuals, but never seem able to exploit what they invent. There are many examples, from the TSR Z hovercraft, high speed train and Sinclair scooter to the Triumph, BSA and Norton Motorcycle which all prove this sad rule. The Japanese were able to exploits their strengths in marketing and development many years ago, and their success was at first either not understood in the West or was dismissed as something which could have been produced only at their low price. They were sold because they were cheap copies of other people's ideas churned out of a workhouse which was dedicated to hard grind above all else.
1. | It is evident from the passage that the strength of a country's industry depends upon |
A. | original research | B. | international cooperation | C. | dedicated workforce | D. | electronic development |
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Answer: Option C
2. | The sad rule mentioned in this passage refers to |
A. | the inability of the Japanese to be inventive like the British | B. | the inability of the British to be industrious like the Japanese | C. | the lack of variety in Japanese inventions | D. | the poorer marketing ability of British |
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Answer: Option D
3. | The TSR Z hovercraft, high speed train, Sinclair scooter etc. are the symbols of |
A. | Japanese success | B. | British failure | C. | British success | D. | Japanese failure |
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Answer: Option B
4. | According to the passage, prosperity in industry depends upon |
A. | productivity | B. | inventiveness | C. | marketing ability | D. | official patronage |
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Answer: Option C
5. | The main theme of this passage is |
A. | electronic industry in Japan | B. | industrial comparison between Japan and Britain | C. | the role of marketing efficiency in industrial prosperity | D. | the importance of original research in industry |
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Answer: Option C
5. Courage is not only the basis of virtue; it is its expression. faith, hope, charity and all the rest don't become virtues until it takes courage to exercise them. There are roughly two types of courage. the first an emotional state which urges a man to risk injury or death, is physical courage. The second, more reasoning attitude which enables him to take coolly his career, happiness, his whole future or his judgement of what he thinks either right or worthwhile, is moral courage.
I have known many men, who had marked physical courage, but lacked moral courage. Some of them were in high places, but they failed to be great in themselves because they lacked moral courage. On the other hand I have seen men who undoubtedly possessed moral courage but were very cautious about taking physical risks. But I have never met a man with moral courage who couldn't, when it was really necessary, face a situation boldly.
1. | A man of courage is |
A. | cunning | B. | intelligent | C. | curious | D. | careful |
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Answer: Option D
2. | Physical courage is an expression of |
A. | emotions | B. | deliberation | C. | uncertainty | D. | defiance |
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Answer: Option A
3. | A man with moral courage can |
A. | defy his enemies | B. | overcome all difficulties | C. | face a situation boldly | D. | be very pragmatic |
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Answer: Option C
4. | People with physical courage of ten lack |
A. | mental balance | B. | capacity for reasoning | C. | emotional stability | D. | will to fight |
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Answer: Option B
5. | All virtues become meaningful because of |
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Answer: Option C
One Word Substitutes
1. State in which the few govern the many
A. Monarchy B. Oligarchy
C. Plutocracy D. Autocracy
Answer: Option B
2.A style in which a writer makes a display of his knowledge
A. Pedantic B. Verbose
C. Pompous D. Ornate
Answer: Option A
3. List of the business or subjects to be considered at a meeting
A. Schedule B. Timetable
C. Agenda D. Plan
Answer: Option C
4.Leave or remove from a place considered dangerous
A. Evade B. Evacuate
C. Avoid D. Exterminate
Answer: Option B
5. A person pretending to be somebody he is not
A. Magician B.Rogue
C. Liar D. Imposter
Answer: Option D
.6. A person who knows many foreign languages
A. Linguist B. Grammarian
C. Polyglot D. Bilingual
Answer: Option A
7. One who has little faith in human sincerity and goodness
A. Egoist B. Fatalist
C. Stoic D. Cynic
Answer: Option D
8. One who possesses many talents
A. Versatile B. Nubile
C. Exceptional D. Gifted
Answer: Option A
9. Words inscribed on tomb
A. Epitome B. Epistle
C. Epilogue D. Epitaph
Answer: Option D
10. One who eats everything
A. Omnivorous B. Omniscent
C. Irrestible D. Insolvent
Answer: Option A
11. The custom or practice of having more than one husband at same time
A. Polygyny B. Polyphony
C. Polyandry D. Polychromy
Answer: Option C
12. Tending to move away from the centre or axis
A. Centrifugal B. Centripetal
C. Axiomatic D.Awry
Answer: Option A
13. A person interested in collecting, studying and selling of old things
A. Antiquarian B. Junk-dealer
C. Crank D. Archealogist
Answer: Option A
.14. A drawing on transparent paper
A. Red print B. Blue print
C. Negative D. Transparency
Answer: Option D
15. One who is not easily pleased by anything
A. Maiden B. Mediaeval
C. Precarious D.Fastidious
Answer: Option D
16. A remedy for all diseases
A. Stoic B. Marvel
C. Panacea D. Recompense
Answer: Option C
17. One who is fond of fighting
A. Bellicose B. Aggressive
C. Belligerent D. Militant
Answer: Option A
18. In a state of tension or anxiety or suspense
A. Off balance B. Depressed
C. Diffused D. On tenterhooks
Answer: Option D
19. That which cannot be read
A. Negligible B. Illegible
C. Ineligible D. Incorrigible
Answer: Option B
20. A small shop that sells fashionable clothes, cosmetics, etc.
A. Store B. Stall
C. Boutique D. Booth
Answer: Option C
21. Be the embodiment or perfect example of
A. Characterise B. Idol
C. Personify D. Signify
Answer: Option C
22. Habitually silent or talking little
A. Serville B. Unequivocal
C. Taciturn D. Synoptic
Answer: Option C
23. One who cannot be corrected
A. Incurable B. Incorrigible
C. Hardened D. Invulnerable
Answer: Option B
24. A paper written by hand
A. Handicraft B. Manuscript
C. Handiwork D. Thesis
Answer: Option B
25. A person not sure of the existence of god
A. Cynic B. Agnostic
C. Atheist D. Theist
Answer: Option B
26. To slap with a flat object
A. Chop B. Hew
C. Gnaw D. Swat
Answer: Option D
Verbal Analogies
1. WAN:COLOUR
A. corpulent : weight B insipid: f lavour
C. pallid: complexion D. enigmatic: puzzle
Answer: Option B
2. PORK:PIG
A. rooster:chicken B. mutton:sheep
C. steer:beef D. lobster:crustacean
Answer: Option B
3. AFTER:BEFORE
A. first:second B. present:past
C. contemporary:historic D. successor:predecessor
Answer: Option D
4. INDIGENT:WEALTHY
A. angry:rich B. native:affluent
C. gauche:graceful D. scholarly:erudite
Answer: Option C
5. DISTANCE:MILE
A. liquid:litre B. bushel:corn
C. weight:scale D. fame:television
Answer: Option A
6. GRAVITY:PULL
A. iron: metal B. orth pole:directions
C. magnetism:attraction D. dust:desert
Answer: Option C
7. ARMY:LOGISTICS
A. business:strategy B. soldier:students
C. war:logic D. team:individual
Answer: Option A
9. MUNDANE:SPIRITUAL
A. common:ghostly B. worldly:unworldly
C. routine:novel D. secular:clerical
Answer: Option B
10. TEN:DECIMAL
A. seven:septet B.four:quartet
C. two:binary D.five:quince
Answer: Option C
11. FILTER:WATER
A. curtail:activity B.expunge:book
C. edit:text D. censor:play
Answer: Option D
12. HOPE:ASPIRES
A. love:elevates B. film:flam
C. fib:lie D. fake:ordinary
Answer: Option C
13. CORPOREAL:SPIRITUAL
A. mesa:plateau B.moron:savant
C. foreigner:immigrant D.pedagogue:teacher
Answer: Option B
14. SYMPHONY: COMPOSER
A. Leonardo:music B. Fresco:painter
C. colours:pallet D. art:appreciation
Answer: Option B
Syllogism
3) Statements: Some papers are pens. All the pencils are pens.
Conclusions:
1. Some pens are pencils.
2. Some pens are papers.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option E
4) Statements: All the actors are girls. All the girls are beautiful.
Conclusions:
1. All the actors are beautiful.
2. Some girls are actors.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option E
6) Statements: All the windows are doors. No door is a wall.
Conclusions:
1. Some windows are walls.
2. No wall is a door.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option B
7) Statements: All cups are books. All books are shirts.
Conclusions:
1. Some cups are not shirts.
2. Some shirts are cups.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option B
8) Statements: Some cows are crows. Some crows are elephants.
Conclusions:
1. Some cows are elephants.
2. All crows are elephants.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option D
9) Statements: All the pencils are pens. All the pens are inks.
Conclusions:
1. All the pencils are inks.
2. Some inks are pencils.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option E
10) Statements: Some dogs are bats. Some bats are cats.
Conclusions:
1. Some dogs are cats.
2. Some cats are dogs.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option
11) Statements: All the trucks are flies. Some scooters are flies.
Conclusions:
1. All the trucks are scooters.
2. Some scooters are trucks.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option D
12) Statements: All buildings are chalks. No chalk is toffee.
Conclusions:
1. No building is toffee
2. All chalks are buildings.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D. Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option A
13) Statements: All cars are cats. All fans are cats.
Conclusions:
1. All cars are fans.
2. Some fans are cars.
A. Only (1) conclusion follows B. Only (2) conclusion follows
C. Either (1) or (2) follows D.Neither (1) nor (2) follows
E. Both (1) and (2) follow
Answer: Option D
14) Statements: No door is dog. All the dogs are cats.
Conclusions:
1. No door is cat.
2. No cat is door.
3. Some cats are dogs.
4. All the cats are dogs.
A. Only (2) and (4) B. Only (1) and (3)
C. Only (3) and (4) D. Only (3)
E. All the four
Answer: Option D
15) Statements: All green are blue. All blue are white.
Conclusions:
1. Some blue are green.
2. Some white are green.
3. Some green are not white.
4. All white are blue.
A. Only (1) and (2) B. Only (1) and (3)
C. Only (1) and (4) D. Only (2) and (4)
Answer: Option A
16) Statements: All men are vertebrates. Some mammals are vertebrates.
Conclusions:
1. All men are mammals.
2. All mammals are men.
3. Some vertebrates are mammals.
4. All vertebrates are men.
A. Only (4) B. Only (2)
C. Only (3) D. Only (1)
E. Only (1) and (3)
Answer: Option C
17) Statements: All the phones are scales. All the scales are calculators.
Conclusions:
1. All the calculators are scales.
2. All the phones are calculators
3. All the scales are phones.
4. Some calculators are phones.
A. Only (1) and (4) B. Only (3) and (4)
C. Only (2) and (4 D. Only (1) and (2)
E. Only (1) and (3)
Answer: Option C
18) Statements: Some cars are scooters. No scooter is cycle.
Conclusions:
1. No car is cycle.
2. No scooter is car.
3. Some cars are cycles.
4. Some scooters are cars.
A. None of the four. B. All the four.
C. Only (1) and (4) D. Only (4)
E. Only (2) and (4)
Answer: Option D
19) Statements: All the locks are keys. All the keys are bats. Some watches are bats.
Conclusions:
1. Some bats are locks.
2. Some watches are keys.
3. All the keys are locks.
A. Only (1) and (2) B. Only (1)
C. Only (2) D. Only (1) and (3)
Answer: Option B
20) Statements: Some keys are staplers. Some staplers are stickers. All the stickers are pens.
Conclusions:
1. Some pens are staplers.
2. Some stickers are keys.
3. No sticker is key.
4. Some staplers are keys.
A. Only (1) and (2) B. Only (2) and (4)
C. Only (2) and (3) D. Only (1) and (4) and either (2) or (3)
Answer: Option D
21) Statements: Some questions are answers. Some answers are writers. All the writers are
poets.
Conclusions:
1. Some writers are answers.
2. Some poets are questions.
3. All the questions are poets.
4. Some poets are answers.
A. Only (1) and (2) B. Only (1) and (4)
C. Only (1) and (3) D. Only (2) and (4)
Answer: Option B
22) Statements: Some envelops are gums. Some gums are seals. Some seals are adhesives.
Conclusions:
1. Some envelopes are seals.
2. Some gums are adhesives.
3. Some adhesives are seals.
4. Some adhesives are gums.
A. Only (3) B. Only (1)
C. Only (2) D. Only (4)
Answer: Option A
23) Statements: All the papers are books. All the bags are books. Some purses are bags.
Conclusions:
1. Some papers are bags.
2. Some books are papers.
3. Some books are purses.
A. Only (1)
B. Only (2) and (3)
C. Only (1) and (2)
D. Only (1) and (3)
Answer: Option B
24) Statements: Some rats are cats. Some cats are dogs. No dog is cow.
Conclusions:
1. No cow is cat.
2. No dog is rat.
3. Some cats are rats.
A. Only (1) B. Only (1) and (2)
C. Only (1) and (3) D. Only (2) and (3)
E. Only (3)
Answer: Option E
25) Statements: All the books are papers. Some papers are journals. Some journals are
calendars.
Conclusions:
1. Some journals are books.
2. Some calendars are papers.
3. Some books are journals.
4. Some books are calendars.
A. Only (1) B. Only (2)
C. Only (3) D. Only (4)
E. None of the four
Answer: Option E
26) Statements: All the bottles are boxes. All the boxes are bags. Some bags are trays.
Conclusions:
1. Some bottles are trays.
2. Some trays are boxes.
3. All the bottles are bags.
4. Some trays are bags.
A. Only (3) and (4) B. Only (1) and (2)
C. Only (2) and (3) D. Only (1) and (4)
Answer: Option A
27) Statements: Some cars are jeeps. All the boxes are jeeps. All the pens are cars.
Conclusions:
1. Some cars are boxes.
2. No pen is jeep.
3. Some boxes are cars.
A. None of three B. Only (1) and (2)
C. Only (1) and (3) D. Only (2) and (3)
Answer: Option A
28) Statements: Some tables are T.V. Some T.V. are radios.
Conclusions:
1. Some tables are radios.
2. Some radios are tables.
3. All the radios are T.V.
4. All the T.V. are tables.
A. Only (2) and (4) B. Only (1) and (3)
C. Only (4) D. Only (1) and (4)
E. None of the four.
Answer: Option E
29) Statements: Some pens are books. Some books are pencils.
Conclusions:
1. Some pens are pencils.
2. Some pencils are pens.
3. All pencils are pens.
4. All books are pens.
A. Only (1) and (3) B. Only (2) and (4)
C. All the four D. None of the four
E. Only (1)
Answer: Option D
30) Statements: All the goats are tigers. All the tigers are lions.
Conclusions:
1. All the goats are lions.
2. All the lions are goats.
3. Some lions are goats.
4. Some tigers are goats.
A. All the four B. Only (1), (2) and (3)
C. Only (1), (3) and (4) D. Only (2), (3) and (4)
Answer: Option C
Classification
1. Choose the word which is different from the rest.
A. Cap B.Turban
C. Helmet D.Veil
E. Hat
Answer: Option D
Explanation:
All except Veil cover the head, while veil covers the face.
2. Choose the word which is different from the rest.
A. Kiwi B. Eagle
C. Emu D. Ostrich
Answer: Option B
3. Choose the word which is different from the rest.
A. Rigveda B. Yajurveda
C. Atharvaveda D.Ayurveda
E. Samveda
Answer: Option D
Explanation:
All except Ayurveda are names of holy scriptures, the four Vedas. Ayurveda is a branch of medicine.
4. Choose the word which is different from the rest.
A. Curd B. Butter
C. Oil D. Cheese
E. Cream
Answer: Option C
Explanation:
All except Oil are products obtained from milk.
5. Choose the word which is different from the rest.
A. Pear B. Apple
C. Litchi D. Guava
E. Orange
Answer: Option E
Explanation:
Orange is the only citrus fruit in the group.
6. Choose the word which is different from the rest.
A. Dagger B.Hammer
C. Knife D. Sword
E. Blade
Answer: Option B
Explanation:
All except Hammer are sharp-edged and have a cutting action.
7. Choose the word which is different from the rest.
A. Oyster B. Whelk
C. Scallop D. Mussel
E. Clam
Answer: Option C
Explanation:
All except Scallop live in shells.
8. Choose the word which is different from the rest.
A. Producer B. Director
C. Investor D. Financier
E. Entrepreneur
Answer: Option B
Explanation:
All except Director spend money.
9. Choose the word which is different from the rest.
A. Tricycle B. Trident
C.Trifle D. Tricolour
E. Trilogy
Answer: Option C
Explanation:
In all except Trifle, 'tri' indicates 'three'.
10. Choose the word which is different from the rest.
A. Chameleon B. Crocodile
C. Alligator D. Locust
E. Salamander
Answer: Option D
Explanation:
All except Locust are reptiles, while locust is an insect.
11. Choose the pair in which the words are differently related from the rest.
A. Scalpel : Surgeon B. Chisel : Soldier
C. Awl : Cobbler D. Knife : Chef
Answer: Option B
Explanation:
In all other pairs, first is a tool used by the second.
12. Choose the pair in which the words are differently related from the rest.
A. Beans : Pulses B. Rice : Cereals
C. Tea : Beverages D. Legumes : Nodules
Answer: Option D
Explanation:
In all other pairs, second denotes the class to which the first belongs.
13. Choose the pair in which the words are differently related from the rest.
A. Pelican : Reptile B. Gnu : Antelope
C. Elk : Deer D. Shark : Fish
Answer: Option A
Explanation:
In all other pairs, first is a type of the second.
14. Choose the pair in which the words are differently related from the rest.
A. Malaria : Protozoa B. Yeast: Fungi
C. Typhoid : Bacteria D. Polio : Virus
Answer: Option B
Explanation:
In all other pairs, first is the disease caused by the second.
15. Choose the pair in which the words are differently related from the rest.
A. Chandragupta : Mauryan B. Babar : Mughal
C. Kanishka : Kushan D. Mahavira : Jainism
Answer: Option D
Explanation:
In all other pairs, second is the name of the dynasty founded by the first.
16. Choose the pair in which the words are differently related from the rest.
A. Flurry : Blizzard B. Moisten: Drench
C.Prick : Stab D. Scrub : Polish
Answer: Option A
Explanation:
In all other pairs, second is of higher intensity than the first.
17. Choose the pair in which the words are differently related from the rest.
A. Saw : Wood B. Pen : Paper
C. Author : Book D. Chalk : Blackboard
Answer: Option C
Explanation:
In all other pairs, first is the tool which works over the second.
18. Choose the pair in which the words are differently related from the rest.
A. Twigs : Nest B. Wood : Furniture
C. Pitcher : Pottery D. Gold : Ornaments
Answer: Option C
Explanation:
In all other pairs, first is the material used to make the second.
19. Choose the pair in which the words are differently related from the rest.
A. Broom : Sweep B. Spoon : Feed
C. Nut : Crack D. Soap : Bathe
Answer: Option C
Explanation:
In all other pairs, second denotes the purpose for which the first is used.
20. Choose the pair in which the words are differently related from the rest.
A. Deer : Flesh B. Crane : Fish
C. Crow : Carrion D. Mongoose : Snake
Answer: Option A
Explanation: In all other pairs, first is the study of second.
21. Choose the pair in which the words are differently related from the rest.
A. Solder : Tin B. Haematite : Iron
C. Bauxite : Aluminium D. Malachite : Copper
Answer: Option A
Explanation:
In all other pairs, second is the name of the metal of which the first is an ore. On the other hand, Solder is an alloy.
22. Choose the pair in which the words are differently related from the rest.
A. Donald : Comedy B. Holmes : Suspense
C. Premchand : Novel D. Robinson : Adventure
Answer: Option C
Explanation:
In all other pairs, first is a character of the type of movie denoted by the second.
23. Choose the pair in which the words are differently related from the rest.
A. Onomatology : Names B. Nidology : Nests
C. Phycology : Algae D. Concology : Shells
Answer: Option D
Explanation:
In all other pairs, first is the study of second.
24. Choose the pair in which the words are differently related from the rest.
A. Cow : Fodder B. Crow : Carrion
C. Poultry : Farm D. Vulture : Prey
Answer: Option C
Explanation:
In all other pairs, second is the food over which the first feeds.
25. Choose the pair in which the words are differently related from the rest.
A. Fish : Pisciculture B. Birds : Horticulture
C. Bees : Apiculture D. Silkworm : Sericulture
Answer: Option B
Explanation:
In all other pairs, second is the name given to artificial rearing of the first.
26. Choose the pair in which the words are differently related from the rest.
A. Aphid : Paper B. Moth : Wool
C. Termite : Wood D. Locust: Plant
Answer: Option A
Explanation:
In all other pairs, first is the insect which damages the second.
27. Which word does NOT belong with the others?
A. inch B. ounce
C. centimeter D. yard
Answer: Option B
28. Which word does NOT belong with the others?
[A]. tulip [B]. rose
[C]. bud [D]. daisy
Answer: Option C
29. Which word does NOT belong with the others?
A. rye B. sourdough
C. pumpernickel D. loaf
Answer: Option A
Explanation:
Loaf, sourdough, and pumpernickel are types of bread. A rye is not a bread type.
Loaf - Bread that is shaped and baked in one piece and usually sliced before being eaten.
Pumpernickel - Dark, dense German bread made from coarsely ground whole-grain rye.
Sourdough - Leaven for making bread, consisting of fermenting dough, typically that left
over from a previous batch.
Rye - A wheatlike cereal plant that tolerates poor soils and low temperatures.
30. Which word does NOT belong with the others?
A. dodge B. flee
C. duck D. avoid
Answer: Option B
31. Which word does NOT belong with the others?
A. tape B. twine
C. cord D. yarn
Answer: Option A
32. Which word does NOT belong with the others?
A. leopard B. cougar
C. elephant D. lion
Answer: Option C
33. Which word does NOT belong with the others?
A. couch B. rug
C. table D. chair
Answer: Option B
Explanation:
The couch, table, and chair are pieces of furniture; the rug is not.
34. Which word does NOT belong with the others?
A. cornea B. retina
C. pupil D. vision
Answer: Option D
Explanation:
The cornea, retina, and pupil are all parts of the eye.
35. Which word does NOT belong with the others?
A. noun B. preposition
C. punctuation D. adverb
Answer: Option C
Explanation:
The noun, preposition, and adverb are classes of words that make up a sentence.
Punctuation belongs in a sentence, but punctuation is not a class of word.
36. Which word does NOT belong with the others?
A. peninsula B. island
C. bay D. cape
Answer: Option C
Explanation:
A peninsula, island, and cape are all landforms; a bay is a body of water.
37. Which word does NOT belong with the others?
A. fair B. just
C. equitable D. favorable
Answer: Option D
Explanation:
Fair, just, and equitable are all synonyms meaning impartial. Favorable means expressing
approval.
38. Which word does NOT belong with the others?
A. acute B. right
C. obtuse D. parallel
Answer: Option D
Explanation:
Acute, right, and obtuse are geometric terms describing particular angles. Parallel refers
to two lines that never intersect.
39. Which word does NOT belong with the others?
A. scythe B. knife
C. pliers D. saw
Answer: Option C
Explanation:
The scythe, knife, and saw are all cutting tools. Pliers are tools, but they are not used for
cutting.
40. Which word does NOT belong with the others?
A. evaluate B. assess
C. appraise D. instruct
Answer: Option D
Explanation:
Evaluate, assess, and appraise are all synonyms; instruct dsoes not mean the same thing.
Logical Sequcence
1) Arrange the words given below in a meaningful sequence.
1. Key 2. Door 3. Lock
4. Room 5. Switch on
A. 5, 1, 2, 4, 3 B. 4, 2, 1, 5, 3
C. 1, 3, 2, 4, 5 D. 1, 2, 3, 5, 4
Answer: Option C
2) Arrange the words given below in a meaningful sequence.
1. Word 2. Paragraph 3. Sentence
4. Letters 5. Phrase
A. 4, 1, 5, 2, 3 B. 4, 1, 3, 5, 2
C. 4, 2, 5, 1, 3 D. 4, 1, 5, 3, 2
Answer: Option D
3) Arrange the words given below in a meaningful sequence.
1. Police 2. Punishment 3. Crime
4. Judge 5. Judgement
A. 3, 1, 2, 4, 5 B. 1, 2, 4, 3, 5
C. 5, 4, 3, 2, 1 D. 3, 1, 4, 5, 2
Answer: Option D
4) Arrange the words given below in a meaningful sequence.
1. Family 2. Community 3. Member
4. Locality 5. Country
A. 3, 1, 2, 4, 5 B. 3, 1, 2, 5, 4
C. 3, 1, 4, 2, 5 D. 3, 1, 4, 5, 2
Answer: Option A
5) Arrange the words given below in a meaningful sequence.
1. Poverty 2. Population 3. Death
4. Unemployment 5. Disease
A. 2, 3, 4, 5, 1 B. 3, 4, 2, 5, 1
C. 2, 4, 1, 5, 3 D. 1, 2, 3, 4, 5
Answer: Option C
6) Arrange the words given below in a meaningful sequence.
1. Never 2. Sometimes 3. Generally
4. Seldom 5. Always
A.5, 2, 1, 3, 4 B. 5, 2, 4, 3, 1
C. 5, 3, 2, 1, 4 D. 5, 3, 2, 4, 1
Answer: Option D
7) Arrange the words given below in a meaningful sequence.
1. Windows 2. Walls 3. Floor
4. Foundation 5. Roof 6. Room
A. 4, 1, 5, 6, 2, 3 B. 4, 2, 1, 5, 3, 6
C. 4, 3, 5, 6, 2, 1 D. 4, 5, 3, 2, 1, 6
Answer: Option B
8) Arrange the words given below in a meaningful sequence.
1. Cut 2. Put on 3. Mark
4. Measure 5. Tailor
A. 1, 3, 2, 4, 5 B. 2, 4, 3, 1, 5
C. 3, 1, 5, 4, 2 D. 4, 3, 1, 5, 2
Answer: Option D
9) Arrange the words given below in a meaningful sequence.
1. House 2. Street 3. Room
4. Town 5. District
A. 3, 2, 1, 4, 5 B. 3, 1, 4, 2, 5
C. 3, 1, 2, 4, 5 D. 3, 1, 2, 5, 4
Answer: Option C
10) Arrange the words given below in a meaningful sequence.
1. Probation 2. Interview 3. Selection
4. Appointment 5. Advertisement 6. Application
A. 5, 6, 3, 2, 4, 1 B. 5, 6, 4, 2, 3, 1
C. 5, 6, 2, 3, 4, 1 D. 6, 5, 4, 2, 3, 1
Answer: Option C
11) Arrange the words given below in a meaningful sequence.
1. Index 2. Contents 3. Title 4. Chapters 5. Introduction
A. 2, 3, 4, 5, 1 B. 3, 2, 5, 1, 4
C. 3, 2, 5, 4, 1 D. 5, 1, 4, 2, 3
Answer: Option C
12) Arrange the words given below in a meaningful sequence.
1. Income 2. Status 3. Education
4. Well-being 5. Job
A. 1, 2, 5, 3, 4 B. 1, 3, 2, 5, 4
C. 3, 1, 5, 2, 4 D. 3, 5, 1, 2, 4
Answer: Option D
13) Arrange the words given below in a meaningful sequence.
1. Table 2. Tree 3. Wood
4. Seed 5. Plant
A. 1, 2, 3, 4, 5 B. 1, 3, 2, 4, 5
C. 4, 5, 2, 3, 1 D. 4, 5, 3, 2, 1
Answer: Option C
14) Arrange the words given below in a meaningful sequence.
1. Table 2. Tree 3. Wood
4. Seed 5. Plant
A. 1, 2, 3, 4, 5 B. 1, 3, 2, 4, 5
C. 4, 5, 2, 3, 1 D. 4, 5, 3, 2, 1
Answer: Option C
15) Arrange the words given below in a meaningful sequence.
1. Windows 2. Walls 3. Floor
4. Foundation 5. Roof 6. Room
A. 4, 1, 5, 6, 2, 3 B. 4, 2, 1, 5, 3, 6
C. 4, 3, 5, 6, 2, 1 D. 4, 5, 3, 2, 1, 6
Answer: Option B
16) Arrange the words given below in a meaningful sequence.
1. Presentation 2. Recommendation 3. Arrival
4. Discussion 5. Introduction
A. 3, 5, 1, 4, 2 B. 3, 5, 4, 2, 1
C. 5, 3, 1, 2, 4 D. 5, 3, 4, 1, 2
Answer: Option A
17) Arrange the words given below in a meaningful sequence.
1. Butterfly 2. Cocoon 3. Egg 4. Worm
A. 1, 3, 4, 2 B. 1, 4, 3, 2
C. 2, 4, 1, 3 D. 3, 4, 2, 1
Answer: Option D
18) Arrange the words given below in a meaningful sequence.
1. Rain 2. Monsoon 3. Rescue
4. Flood 5. Shelter 6. Relief
A. 1, 2, 3, 4, 5, 6 B. 1, 2, 4, 5, 3, 6
C. 2, 1, 4, 3, 5, 6 D. 4, 1, 2, 3, 5, 6
Answer: Option C
19) Arrange the words given below in a meaningful sequence.
1. Milky way 2. Sun 3. Moon
4. Earth 5. Stars
A. 1, 4, 3, 2, 5 B. 2, 3, 4, 5, 1
C. 3, 4, 2, 5, 1 D. 4, 3, 2, 5, 1
Answer: Option C
20) Arrange the words given below in a meaningful sequence.
1. Foetus 2. Child 3. Baby 4. Adult 5. Youth
A. 1, 2,4, 3, 5 B. 1,3,2,5,4
C. 2, 3, 5, 4, 1 D. 5, 4, 2, 3, 1
Answer: Option B
21) Arrange the words given below in a meaningful sequence.
1. Sea 2. Rivulet 3. Ocean
4. River 5. Glacier
A. 5, 2, 1, 3, 4 B. 5, 2, 4, 1, 3
C. 5, 4, 2, 3, 1 D. 5, 4, 3, 2, 1
Answer: Option B
22) Arrange the words given below in a meaningful sequence.
1. Doctor 2. Fever 3. Prescribe
4. Diagnose 5. Medicine
A. 1, 4, 3, 2, 5 B. 2, 1, 3, 4, 5
C. 2, 1, 4, 3, 5 D. 2, 4, 3, 5, 1
Answer: Option C
23) Arrange the words given below in a meaningful sequence.
1. Reading 2. Composing 3. Writing
4. Printing
A. 1, 3, 2, B. 2, 3, 4, 1
C. 3, 1, 2, 4 D. 3, 2, 4, 1
Answer: Option D
24) Arrange the words given below in a meaningful sequence.
1. Hecto 2. Centi 3. Deca 4. Kilo 5. Deci
A. 1, 3, 4, 5, 2 B. 1, 5, 3, 4, 2
C. 2, 5, 3, 1, 4 D. 5, 2, 1, 4, 3
Answer: Option C
25) Arrange the words given below in a meaningful sequence.
1. Honey 2. Flower 3. Bee 4. Wax
A. 1, 3, 4, 2 B. 2, 1, 4, 3
C. 2, 3, 1, 4 D. 4, 3, 2, 1
Answer: Option C
26) Arrange the words given below in a meaningful sequence.
1. Country 2. Furniture 3. Forest
4. Wood 5. Trees
A. 1, 3, 5, 4, 2 B. 1, 4, 3, 2, 5
C. 2, 4, 3, 1, 5 D. 5, 2, 3, 1, 4
Answer: Option A
27) Arrange the words given below in a meaningful sequence.
1. Site 2. Plan 3. Rent
4. Money 5. Building 6. Construction
A. 1, 2, 3, 6, 5, 4 B. 2, 3, 6, 5, 1, 4
C. 3, 4, 2, 6, 5, 1 D. 4, 1, 2, 6, 5, 3
Answer: Option D
28) Arrange the words given below in a meaningful sequence.
1. Key 2. Door 3. Lock 4. Room 5. Switch on
A. 1, 2, 3, 5, 4 B. 1, 3, 2, 4, 5
C. 4, 2, 1, 5, 3 D. 5, 1, 2, 4, 3
Answer: Option B
29) Arrange the words given below in a meaningful sequence.
1. Rainbow 2. Rain 3. Sun 4. Happy 5. Child
A. 2, 1, 4, 3, 5 B. 2, 3, 1, 5, 4
C. 4, 2, 3, 5, 1 D. 4, 5, 1, 2, 3
Answer: Option B
30) Arrange the words given below in a meaningful sequence.
1. Cutting 2. Dish 3. Vegetable 4. Market 5. Cooking
A. 1, 2, 4, 5, 3 B. 3, 2, 5, 1, 4
C. 4, 3, 1, 5, 2 D. 5, 3, 2, 1, 4
Answer: Option C
31) Arrange the words given below in a meaningful sequence.
1. Elephant 2. Cat 3. Mosquito 4. Tiger 5. Whale
A. 1, 3, 5, 4, 2 B. 2, 5, 1, 4, 3
C. 3, 2, 4, 1, 5 D. 5, 3, 1, 2, 4
Answer: Option C
32) Arrange the words given below in a meaningful sequence.
1. Cut 2. Put on 3. Mark 4. Measure 5. Tailor
A. 1, 3, 2, 4, 5 B. 2, 4, 3, 1, 5
C. 3, 1, 5, 4, 2 D. 4, 3, 1, 5, 2
Answer: Option D
33) Arrange the words given below in a meaningful sequence.
1. Yarn 2. Plant 3. Saree 4. Cotton 5. Cloth
A. 2, 4, 1, 5, 3 B. 2, 4, 3, 5, 1
C. 2, 4, 5, 1, 3 D. 2, 4, 5, 3, 1
Answer: Option A
34) Arrange the words given below in a meaningful sequence.
1. Police 2. Punishment 3. Crime 4. Justice 5. Judgement
A. 1, 2, 3, 4, 5 B. 3, 1, 2, 4, 5
C. 3, 1, 4, 5, 2 D. 5, 4, 3, 2, 1
Answer: Option C
35) Arrange the words given below in a meaningful sequence.
1. Patient 2. Diagnosis 3. Bill 4. Doctor 5. Treatment
A. 1, 4, 2, 3, 5 B. 1, 4, 3, 2, 5
C. 1, 4, 2, 5, 3 D. 4, 1, 2, 3, 5
Answer: Option C
36) Arrange the words given below in a meaningful sequence.
1. Atomic Age 2. Metallic Age 3. Stone Age 4. Alloy Age
A. 1, 3, 4, 2 B. 2, 3, 1, 4
C. 3, 2, 4, 1 D. 4, 3, 2, 1
Answer: Option C
Verbal Reasoning
1) Erin is twelve years old. For three years, she has been asking her parents for a dog. Her parents have told her that they believe a dog would not be happy in an apartment, but they have given her permission to have a bird. Erin has not yet decided what kind of bird she would like to have.
A. Erin's parents like birds better than they like dogs.
B. Erin does not like birds.
C. Erin and her parents live in an apartment.
D. Erin and her parents would like to move.
Answer: Option C
Explanation:
Since Erin's parents think a dog would not be happy in an apartment, we can reasonably conclude that the family lives in an apartment. We do not know if Erin's parents dislike dogs (choice a) or if Erin dislikes birds (choice b).There is no support for choice d.
2) Last summer, Mike spent two weeks at a summer camp. There, he went hiking, swimming, and canoeing. This summer, Mike looks forward to attending a two-week music camp, where he hopes to sing, dance, and learn to play the guitar.
A. Mike's parents want him to learn to play the guitar.
B. Mike prefers music to outdoor activities.
C. Mike goes to some type of camp every summer.
D. Mike likes to sing and dance.
Answer: Option D
Explanation:
It is reasonable to conclude that Mike likes singing and dancing because he looks forward to doing these things at music camp. There is no information that supports any of the other three choices.
3) Seahorse populations have declined everywhere that seahorses are fished. During the past five years, seahorse populations have decreased by 50%. Last year, biologists met to discuss what might be done to reverse this trend.
A. Seahorses are likely to become extinct within five years.
B. One way to increase seahorse populations is to ban the fishing of seahorses.
C. Biologists from all over the world are working to save the seahorses.
D. Seahorse fishermen have spoken out against the biologists.
Answer: Option B
Explanation:
Since the seahorse populations have declined as a result of fishing, their populations will increase if seahorse fishing is banned. There is no support for any of the other choices.
4) On weekends, Mr. Sanchez spends many hours working in his vegetable and flower gardens. Mrs. Sanchez spends her free time reading and listening to classical music. Both Mr. Sanchez and Mrs. Sanchez like to cook.
A. Mr. Sanchez enjoys planting and growing vegetables.
B. Mr. Sanchez does not like classical music.
C. Mrs. Sanchez cooks the vegetables that Mr. Sanchez grows.
D. Mrs. Sanchez enjoys reading nineteenth century novels.
Answer: Option A
Explanation:
Because Mr. Sanchez spends many hours during the weekend working in his vegetable garden, it is reasonable to suggest that he enjoys this work. There is no information to suggest that he does not like classical music. Although Mrs. Sanchez likes to cook, there is nothing that indicates she cooks vegetables (choice c). Mrs. Sanchez likes to read, but there is no information regarding the types of books she reads (choice d).
5) Georgia is older than her cousin Marsha. Marsha's brother Bart is older than Georgia. When Marsha and Bart are visiting with Georgia, all three like to play a game of Monopoly. Marsha wins more often than Georgia does.
A. When he plays Monopoly with Marsha and Georgia, Bart often loses.
B. Of the three, Georgia is the oldest.
C. Georgia hates to lose at Monopoly.
D. Of the three,Marsha is the youngest.
Answer: Option D
Explanation:
If Georgia is older than Marsha and Bart is older than Georgia, then Marsha has to be the youngest of the three. Choice b is clearly wrong because Bart is the oldest. There is no information in the paragraph to support either choice a or choice c.
6) Sara lives in a large city on the East Coast. Her younger cousin Marlee lives in the Mid-west in a small town with fewer than 1,000 residents. Marlee has visited Sara several times during the past five years. In the same period of time, Sara has visited Marlee only once.
A. Marlee likes Sara better than Sara likes Marlee.
B. Sara thinks small towns are boring.
C. Sara is older than Marlee.
D. Marlee wants to move to the East Coast.
Answer: Option C
Explanation:
Since the paragraph states that Marlee is the younger cousin, Sara must be older than Marlee. There is no information to support the other choices.
7) Ten new television shows appeared during the month of September. Five of the shows were sitcoms, three were hour-long dramas, and two were news-magazine shows. By January, only seven of these new shows were still on the air. Five of the shows that remained were sitcoms.
A. Only one of the news-magazine shows remained on the air.
B. Only one of the hour-long dramas remained on the air.
C. At least one of the shows that was cancelled was an hour-long drama.
D. Television viewers prefer sitcoms over hour-long dramas.
Answer: Option C
Explanation:
If there were seven shows left and five were sitcoms, this means that only two of the shows could possibly be dramas. Choices a and b may be true, but there is no evidence to indicate this as fact. The fact that all of the sitcoms remained does not necessarily mean that viewers prefer sitcoms (choice d).
8) Tim's commute never bothered him because there were always seats available on the train and he was able to spend his 40 minutes comfortably reading the newspaper or catching up on paperwork. Ever since the train schedule changed, the train has been extremely crowded, and by the time the doors open at his station, there isn't a seat to be found.
A. Tim would be better off taking the bus to work.
B. Tim's commute is less comfortable since the train schedule changed.
C. Many commuters will complain about the new train schedule.
D. Tim will likely look for a new job closer to home.
Answer: Option B
Explanation:
The passage tells us that Tim's commute didn't bother him because he was always able to sit down and comfortably read or do paperwork. Therefore, it is reasonable to assume that Tim's commute has become less comfortable since the schedule change, because it is very crowded and he can no longer find a seat. There is no information given that supports choices a, c, and d.
Analysing Arguments
1) One New York publisher has estimated that 50,000 to 60,000 people in the United States want an anthology that includes the complete works of William Shakespeare. And what accounts for this renewed interest in Shakespeare? As scholars point out, his psychological insights into both male and female characters are amazing even today.
This paragraph best supports the statement that
A. Shakespeare's characters are more interesting than fictional characters today.
B. people even today are interested in Shakespeare's work because of the characters.
C. academic scholars are putting together an anthology of Shakespeare's work.
D. New Yorkers have a renewed interested in the work of Shakespeare.
E. Shakespeare was a psychiatrist as well as a playwright.
Answer: Option B
Explanation:
The last sentence in the paragraph clearly gives support for the idea that the interest in Shakespeare is due to the development of his characters. Choice a is incorrect because the writer never makes this type of comparison. Choice c is wrong because even though scholars are mentioned in the paragraph, there is no indication that the scholars are compiling the anthology. Choice d is wrong because there is no support to show that most New Yorkers are interested in this work. There is no support for choice e either.
2) One of the warmest winters on record has put consumers in the mood to spend money. Spending is likely to be the strongest in thirteen years. During the month of February, sales of existing single-family homes hit an annual record rate of 4.75 million.
This paragraph best supports the statement that
A. consumer spending will be higher thirteen years from now than it is today.
B. more people buy houses in the month of February than in any other month.
C. during the winter months, the prices of single-family homes are the lowest.
D. there were about 4 million homes for sale during the month of February.
E. warm winter weather is likely to affect the rate of home sales.
Answer: Option E
Explanation:
This is clearly the best answer because the paragraph directly states that warm weather affects consumers inclination to spend. It furthers states that the sales of single-family homes was at an all-time high. There is no support for choice a or c. Choice b is wrong because even though there were high sales for a particular February, this does not mean that sales are not higher in other months. Choice d presents a misleading figure of 4 million. The paragraph states that the record of 4.75 million was at an annual, not a monthly, rate.
3) Yoga has become a very popular type of exercise, but it may not be for everyone. Before you sign yourself up for a yoga class, you need to examine what it is you want from your fitness routine. If you're looking for a high-energy, fast-paced aerobic workout, a yoga class might not be your best choice.
This paragraph best supports the statement that
A. yoga is more popular than high-impact aerobics.
B. before embarking on a new exercise regimen, you should think about your needs
and desires.
C. yoga is changing the world of fitness in major ways
D. yoga benefits your body and mind
E. most people think that yoga isn't a rigorous form of exercise.
Answer: Option B
Explanation:
The second sentence points out that people should examine what they want from a fitness routine before signing up for a new exercise class. There is no evidence to support choice a. Choice c might sound reasonable due to the fact that the paragraph tells us that yoga has become very popular, but this statement is not supported by the information provided in the paragraph. Choices d and e are also not supported since the paragraph doesn't tell us whether yoga is good for both body and mind or what people think about it.
4) Human technology developed from the first stone tools about two and a half million years ago. At the beginning, the rate of development was slow. Hundreds of thousands of years passed without much change. Today, new technologies are reported daily on television and in newspapers.
This paragraph best supports the statement that
A. stone tools were not really technology.
B. stone tools were in use for two and a half million years
C. there is no way to know when stone tools first came into use.
D. In today's world, new technologies are constantly being developed
E. none of the latest technologies is as significant as the development of stone tools.
Answer: Option D
Explanation:
The last sentence states that new technologies are reported daily, and this implies that new technologies are being constantly developed. There is no support for choice a.With regard to choice b, stone tools were first used two and a half million years ago, but they were not neessarily in use all that time. Choice c is clearly wrong since the paragraph states when stone tools first came into use. Although some may agree that choice e is true, the author of the paragraph does not give support for this opinion.
5) Mathematics allows us to expand our consciousness. Mathematics tells us about economic trends, patterns of disease, and the growth of populations. Math is good at exposing the truth, but it can also perpetuate misunderstandings and untruths. Figures have the power to mislead people.
This paragraph best supports the statement that
A. the study of mathematics is dangerous.
B. words are more truthful than figures.
C. the study of mathematics is more important than other disciplines.
D. the power of numbers is that they cannot lie.
E. figures are sometimes used to deceive people.
Answer: Option E
Explanation:
This answer is clearly stated in the last sentence of the paragraph. Choice a can be ruled out because there is no support to show that studying math is dangerous. Words are not mentioned in the passage, which rules out choice b. Choice d is a contradiction to the information in the passage. There is no support for choice c.
6) Some groups want to outlaw burning the flag. They say that people have fought and died for the flag and that citizens of the United States ought to respect that. But I say that respect cannot be leg-islated. Also, most citizens who have served in the military did not fight for the flag, they fought for what the flag represents. Among the things the flag represents is freedom of speech, which includes, I believe, the right for a citizen to express displeasure with the government by burning the flag in protest.
1. Which of the following is similar to the argument made by the speaker?
A. The rich should not be allowed to "buy" politicians, so the Congress should enact
campaign finance reform.
B. The idea of freedom of religion also means the right not to participate in religion,
so mandated school prayer violates freedom of religion.
C. The Constitution guarantees freedom to own property, so taxes should be illegal.
D. Convicted felons should not have their convictions overturned on a technicality.
E. In order to understand what may be constitutional today, one needs to look at
what the laws were when the Constitution was enacted.
Answer: Option B
Explanation:
This is the best choice because it relates to a situation where a proposed law would actually violate the part of the Constitution it is intended to protect.
2. Which of the following, if true, would weaken the speaker's argument?
A. An action is not considered a part of freedom of speech.
B. People who burn the flag usually commit other crimes as well.
C. The flag was not recognized by the government until 1812.
D. State flags are almost never burned
E. Most people are against flag burning.
Answer: Option A
Explanation:
If an action is not included under freedom of speech, the speaker's main argument is
incorrect.
3. Which of the following best expresses the main point of the passage?
A. Only veterans care about the flag-burning issue.
B. Flag burning almost never happens, so outlawing it is a waste of time.
C. Flag burning will be a very important issue in the next election.
D. To outlaw flag burning is to outlaw what the flag represents.
E. Burning the flag should only be illegal when it is done in foreign countries.
Answer: Option D
Explanation:
The speaker maintains that to burn a flag is an act of freedom of speech, which is among the things the flag represents.
7) Giving children computers in grade school is a waste of money and teachers time. These children are too young to learn how to use computers effectively and need to spend time on learning the basics, like arithmetic and reading. After all, a baby has to crawl before she can walk.
1. Which of the following, if true, would strengthen the speaker's argument?
A. studies showing computers are expensive
B. research on the effect of computer games on children
C. examples of high school students who use computers improperly
D. proof that the cost of computers is coming down
E. evidence that using computers makes learning to read difficult
Answer: Option E
Explanation:
This evidence would back up the speaker's contention that young students should learn the basics before learning computers. Choices a and d, which are both about cost, would have no effect on the argument. Choices b and c are too vague.
2. Which of the following, if true, would weaken the speaker's argument?
A. a demonstration that computers can be used to teach reading and arithmetic
B. analysis of the cost-effectiveness of new computers versus repairing old
computers
C. examples of adults who do not know how to use computers
D. recent grade reports of students in the computer classes
E. a visit to a classroom where computers are being used
Answer: Option A
Explanation:
If computers enhance the learning of arithmetic and reading, the speaker's argument is not
as strong.
3. Which of the following methods of argument is used in the previous passage?
A. a specific example that illustrates the speaker's point
B. attacking the beliefs of those who disagree with the speaker
C. relying on an analogy to prove the speaker's point
D. displaying statistics that back up the speaker's point
E. comparing different methods of learning
Answer: Option C
Explanation:
The speaker uses analogies to compare crawling with learning arithmetic and reading and to compare walking with using a computer. The speaker is making the point that, in both cases, a child needs to learn one before learning the other.
8) Read the below passage carefully and answer the questions:
Quinn: Our state is considering raising the age at which a person can get a driver's license to eighteen. This is unfair because the age has been sixteen for many years and sixteen-year-olds today are no less responsible than their parents and grandparents were at sixteen.Many young people today who are fourteen and fifteen years old are preparing to receive their licenses by driving with a learner's permit and a licensed driver, usually one of their parents. It would not be fair to suddenly say they have to wait two more years.
Dakota: It is true that people have been allowed to receive a drivers license at sixteen for generations. However, in recent years, the increase in traffic means drivers face more dangers than ever and must be ready to respond to a variety of situations. The fact that schools can no longer afford to teach drivers education results in too many young drivers who are not prepared to face the traffic conditions of today.
1. What is the point at issue between Quinn and Dakota?
A.whether sixteen-year-olds should be required to take drivers education before
being issued a license
B.whether schools ought to provide drivers education to fourteen- and fifteen-year-
old students
C.whether the standards for issuing drivers licenses should become more stringent
D.whether sixteen-year-olds are prepared to drive in today's traffic conditions
E.whether parents are able to do a good job teaching their children to drive
Answer: Option D
Explanation:
The speakers support their arguments in different ways, but both are concerned with whether sixteen-year-olds should continue to be allowed to receive drivers licenses.
2. On what does Quinn rely in making her argument?
A. statistics
B. emotion
C. fairness
D. anecdotes
E.actualities
Answer: Option C
Explanation:
Quinn discusses the fairness of changing the law and raising the age at which one can receive a driver's license. Emotion (choice b) may be involved, but the argument relies on the fairness issue.
3. On what does Dakota rely in making her argument?
A.statistics
B.emotion
C.fairness
D.anecdotes
E.actualities
Answer: Option E
Explanation:
Dakota discusses the actualities of increased traffic and the decline in the teaching of drivers education. She doesn't use statistics (choice a). Her argument is not emotion filled, which rules out choice b. She doesn't mention fairness (choice c) and doesn't tell stories about specific situations (choice d).
VERIFICATION OF TRUTH
1) Which one of the following is always with 'Bargain'?
A.Exchange B.Sumptuousness
C.Triviality D.Eloquence
Answer: Option A
2) My ten years old niece is taller than my twelve years old son:
A.Always B.Never
C.Often D.Sometimes
Answer: Option D
3) Which one of the following is always found in 'Phrase'?
A.Nomenclature B.Manifestation
C.Pictorial effect D.Glossary
Answer: Option D
4) If we are going early in the morning towards the south the sun will be visible at our left:
A.Always B.Never
C.Often D.Sometimes
Answer: Option A
Explanation:
Early in the morning the sun is in the direction of east. If we are going towards the south, our face will be in the direction of South and our left hand will be in the direction of east.
Hence if we go early in the morning towards the south the sun will always be visible at
our left.
5) Danger always involves
A.Enemy B.Attack
C.Fear D.Help
Answer: Option C
6) Which one of the following is always found in 'Remedy of fault'?
A.Punishment B.Remedy
C.Fault D.Scolding
Answer: Option C
7) In India a widow can marry her brother-in-law although a man cannot marry the sister of
his dead wife:
A.Always B.Never
C.Often D.Sometimes
Answer: Option D
Explanation:
As there is no such tradition hence this will happen sometimes.
8) A mirror always
A.Retracts B.Distorts
C.Refracts D.Reflects
Answer: Option D
9) A bulb always has
A.Glass B.Current
C.Filament D.Light
Answer: Option C
10) Which one of the following is always found in 'Wonder'?
A.Crowd B.Lumber
C.Astonishment D.Rustic
Answer: Option C
11) Disclosure always involves
A.Agents B.Display
C.Exposition D.Secrets
Answer: Option D
12) What is always in worry?
A.Difficulty B.Unrest
C.Non-Cooperation D.Poignancy
Answer: Option B
13) Which one of the following is always associated with 'tree'?
A.Flowers B.Leaves
C.Fruits D.Roots
Answer: Option D
14) Which one of the following is always associated with 'justice'?
A.Hypocrisy B.Legitimate
C.Magnanimity D.Diminutiveness
Answer: Option B
15)A hill always has
A.Trees B.Height
C.Animals D.Water
Answer: Option B
16)What is found necessarily in newspaper?
A.Date B.Advertisement
C.News D.Editor
Answer: Option C
17)Controversy always involves
A.Dislike B.Injustice
C.Disagreement D.Passion
Answer: Option C
18)Which one of the following is always in 'Sentiment'?
A.Cruelty B.Insight
C.Neutrality D.Emotion
Answer: Option D
19)A camera always has
A.Reels B.Flash
C.Stand D.Lens
Answer: Option D
20) What is found necessarily in a race?
A.Judge B.Spectators
C.Competitor D.Prize
Answer: Option C
BLOOD RELATIONS
1) Pointing to a photograph of a boy Suresh said, "He is the son of the only son of my mother." How is Suresh related to that boy?
Answer: Option D
Explanation:
The boy in the photograph is the only son of the son of Suresh's mother i.e., the son of Suresh. Hence, Suresh is the father of boy.
2) If A + B means A is the mother of B; A - B means A is the brother B; A % B means A is the father of B and A x B means A is the sister of B, which of the following shows that P is the maternal uncle of Q?
A. | Q - N + M x P | B. | P + S x N - Q |
C. | P - M + N x Q | D. | Q - S % P |
Answer: Option C
Explanation:
P - M → P is the brother of M
M + N → M is the mother of N
N x Q → N is the sister of Q
Therefore, P is the maternal uncle of Q.
3) If A is the brother of B; B is the sister of C; and C is the father of D, how D is related to A?
A. | Brother | B. | Sister |
C. | Nephew | D. | Cannot be determined |
Answer: Option D
Explanation:
If D is Male, the answer is Nephew.
If D is Female, the answer is Niece.
As the sex of D is not known, hence, the relation between D and A cannot be determined.
Note: Niece - A daughter of one's brother or sister, or of one's brother-in-law or sister-in-law. Nephew - A son of one's brother or sister, or of one's brother-in-law or sister-in-law.
4)If A + B means A is the brother of B; A - B means A is the sister of B and A x B means A is the father of B. Which of the following means that C is the son of M?
A. | M - N x C + F | B. | F - C + N x M |
C. | N + M - F x C | D. | M x N - C + F |
Answer: Option D
Explanation:
M x N → M is the father of N
N - C → N is the sister of C
and C + F → C is the brother of F.
Hence, M is the father of C or C is the son of M.
5) Introducing a boy, a girl said, "He is the son of the daughter of the father of my uncle." How is the boy related to the girl?
Answer: Option A
Explanation:
The father of the boy's uncle → the grandfather of the boy and daughter of the grandfather → sister of father.
6) If D is the brother of B, how B is related to C? To answer this question which of the s tatements is/are necessary?
The son of D is the grandson of C.
B is the sister of D.
A. | Only 1 | B. | Only 2 |
C. | Either 1 or 2 | D. | 1 and 2 both are required |
Answer: Option D
Explanation:
Given: D is the brother of B.
From statement 1, we can detect that D is son of C (son of D is the grandson of C).
From statement 2, we can detect that B is 'Female' (sister of D).
Therefore, B is daughter of C.
7) If A + B means A is the father of B; A - B means A is the brother B; A % B means A is the wife of B and A x B means A is the mother of B, which of the following shows that M is the maternal grandmother of T?
A. | M x N % S + T | B. | M x N - S % T |
C. | M x S - N % T | D. | M x N x S % T |
Answer: Option A
Explanation:
M x N → M is the mother of N
N % S → N is the wife of S
and S + T → is the father of T.
Hence, M is the maternal grandmother of T.
8) A and B are children of D. Who is the father of A? To answer this question which of the statements (1) and (2) is necessary?
C is the brother of A and the son of E.
F is the mother B.
A. | Only (1) | B. | Only (2) |
C. | Either (1) or (2) | D. | (1) and (2) both |
Answer: Option B
Explanation:
A and B are children of D.
From (1), C is the brother B and son of E.
Since, the sex of D and E are not known. Hence (1) is not sufficient to answer the question.
From (2). F is the mother of B. Hence, F is also the mother of A. Hence D is the father of A.Thus, (2) is sufficient to answer the question.
9) If P $ Q means P is the brother of Q; P # Q means P is the mother of Q; P * Q means P is the daughter of Q in A # B $ C * D, who is the father?
Answer: Option A
Explanation:
A is the mother of B, B is the brother of C and C is the daughter of D. Hence, D is the father.
A (Parents) D
| |
| |
B - is - Brother - of – C
10) A3P means A is the mother of P
A4P means A is the brother of P
A9P means A is the husband of P
A5P means A is the daughter of P
Which of the following means that K is the mother-in-law of M?
Answer: Option B
Explanation:
M9N → M is the husband of N
N5K → N is the daughter of K
Hence, → M is the son-in-law of K
K3J → K is the mother of J
Hence, → K is a lady
Hence, → K is the mother-in-law of M.
11) P is the mother of K; K is the sister of D; D is the father of J. How is P related to J?
A. | Mother | B. | Grandmother |
C. | Aunt | D. | Data inadequate |
Answer: Option B
Explanation:
P is the mother of K
K is the sister of D
D is the father of J.
Therefore, J is the nephew or niece of K and P is the grandmother of J.
12) Pointing to Gopi, Nalni says, "I am the daughter of the only son of his grandfather." How Nalni is related to Gopi?
A. | Niece | B. | Daughter |
C. | Sister | D. | Cannot be determined |
Answer: Option C
Explanation:
Nalni is the daughter of the only son of Gopi's grandfather. Hence, it's clear that Nalni is the sister of Gopi.
13) M is the father of N who is the son of V. In order to know the relation of M to P, which of the statement/statements is/are necessary?
P is the brother of V.
The daughter of N is the granddaughter of V.
A. | Only (1) | B. | Only (2) |
C. | Either (1) or (2) | D. | (1) and (2) both |
Answer: Option A
Explanation:
M is the father of N and N is the son of V.
Hence, V is the mother of N.
From (1), P is the brother of V
Therefore, M is the brother-in-law of P because V is the wife of M.
From (2), the daughter of N, is the granddaughter of V. From this we do not get any relation of M to P.
14)A * B means A is the sister of B
A $ B means B is the mother of A
A + B means A is the brother of B
A = B means B is the father of A.
Which of the following means M is the maternal uncle of N?
A. | M = P + Q * N | B. | N + P = Q * M |
C. | N * P $ Q * M | D. | None of these |
Answer: Option D
15) Anupam said to a lady sitting in a car, "The only daughter of the brother of my wife is the sister-in-law of the brother of your sister." How the husband of the lady is related to Anupam?
A. | Maternal uncle | B. | Uncle |
C. | Father | D. | Son-in-law |
Answer: Option D
Explanation:
Anupam's son-in-law is the brother of the lady who was sitting in the car. Hence, the husband is also the son-in-law of Anupam.
16) Deepak said to Nitin, "That boy playing with the football is the younger of the two brothers of the daughter of my father's wife." How is the boy playing football related to Deepak?
Answer: Option B
Explanation:
Father's wife → mother. Hence, the daughter of the mother means sister and sister's younger brother means brother. Therefore, the boy is the brother of Deepak.
17)M % N means M is the son of N.
M @ N means M is the sister of N.
M $ N means M is the father of N.
1. | Which of the following shows the relation that C is the granddaughter of E? |
A. | C % B $ F $ E | B. | B $ F $ E % C | C. | C @ B % F % E | D. | E % B $ F $ C |
|
Answer: Option C
Explanation:
C @ B → C is the sister of B
B % F → B is the son of F
Hence, → C is the daughter of F
F % E → F is the son of E
Hence, → C is the granddaughter of E.
2. Which of the following shows the relation that S is the father of Q?
A. | S @ P $ Q | B. | Q @ P % S |
C. | Q $ S @ P | D. | None of these |
Answer: Option D
18)A + B means A is the mother of B.
A - B means A is the sister of B.
A * B means A is the father of B.
A β B means A is the brother of B.
1. | Which of the following means Q is the grandfather of P? |
A. | P + N * M * Q | B. | Q * N * M + P | C. | Q β M β N * P | D. | None of these |
|
Answer: Option D
2. Which of the following means that N is the maternal uncle of M?
A. | N β P - L + E - M | B. | N - Y + A β M |
C. | M - Y * P - N | D. | N β C + F * M |
Answer: Option A
Explanation:
N β P → N is the brother of P
P - L → P is the sister of L
L + E → L is the mother of E
E - M → E is the sister of M.
Hence, L is the mother of M, P is the maternal aunt of M and N is the maternal uncle of M.
MATCHING DEFINITION
1)People speculate when they consider a situation and assume something to be true based on inconclusive evidence. Which situation below is the best example of Speculation ?
A.Francine decides that it would be appropriate to wear jeans to her new office on Friday after reading about "Casual Fridays" in her employee handbook.
B.Mary spends thirty minutes sitting in traffic and wishes that she took the train instead of driving.
C.After consulting several guidebooks and her travel agent, Jennifer feels confident that the hotel she has chosen is first-rate.
D.When Emily opens the door in tears, Theo guesses that she's had a death in her family.
Answer: Option D
Explanation:
This is the only situation in which someone makes an assumption that is not based on conclusive evidence. Choices a and c reflect situations in which assumptions are made based on evidence. In choice b, Mary is not assuming anything to be true. She is simply wishing that she'd made a different decision.
2)Posthumous Publication occurs when a book is published after the author's death. Which situation below is the best example of Posthumous Publication ?
A.Richard's illness took his life before he was able to enjoy the amazing early reviews of his novel.
B.Melissa's publisher cancels her book contract after she fails to deliver the manuscript on time.
C.Clarence never thought he'd live to see the third book in his trilogy published.
D.Elizabeth is honored with a prestigious literary award for her writing career and her daughter accepts the award on behalf of her deceased mother.
Answer: Option A
Explanation:
Although choice d also mentions a writer who has died, it does not state that one of the writer's books was published after her death, only that she received an award. Choice a states that Richard wasn't around to see the early reviews of his novel, therefore implying that Richard died before the book was published. The other two options depict living writers.
3)Establishing a Power of Attorney occurs when a legal document is created that gives one individual the authority to act for another. Which situation below is the best example of Establishing a Power of Attorney?
A.Louise is selling her house and she hires a lawyer to review the contract.
B.Simone's mother can no longer get to the bank to cash her checks and make deposits, so she has taken legal steps to enable Simone to do these things for her.
C.Jack's father is elderly and Jack thinks he is no longer able to make decisions for himself.
D.At her daughter's urging, Mrs.Lenox opens up a retirement account with the local bank.
Answer: Option B
Explanation:
Simone's mother has taken legal steps to allow another person to act on her behalf. Therefore, this is the only choice that indicates that a power of attorney has been established.
4)Embellishing the Truth occurs when a person adds fictitious details or exaggerates facts or true stories. Which situation below is the best example of Embellishing the Truth?
A.Isabel goes to the theater, and the next day, she tells her coworkers she thought the play was excellent.
B.The realtor describes the house, which is eleven blocks away from the ocean, as prime waterfront property.
C.During the job interview, Fred, who has been teaching elementary school for ten years, describes himself as a very experienced teacher.
D.The basketball coach says it is likely that only the most talented players will get a college scholarship.
Answer: Option B
Explanation:
The realtor is using a clear exaggeration when she states that a house which is eleven blocks away from the ocean is prime waterfront property.
5)Reentry occurs when a person leaves his or her social system for a period of time and then returns. Which situation below best describes Reentry ?
A.When he is offered a better paying position, Jacob leaves the restaurant he manages to manage a new restaurant on the other side of town.
B.Catherine is spending her junior year of college studying abroad in France.
C.Malcolm is readjusting to civilian life after two years of overseas military service.
D.After several miserable months, Sharon decides that she can no longer share an apartment with her roommate Hilary.
Answer: Option C
Explanation:
Malcolm is the only person returning to a social system that he has been away from for an extended period of time.
6)A Tiebreaker is an additional contest or period of play designed to establish a winner among tied contestants. Which situation below is the best example of a Tiebreaker?
A.At halftime, the score is tied at 28.
B.Mary and Megan have each scored three goals in the game.
C.The referee tosses a coin to decide which team will have possession of the ball first.
D.The Sharks and the Bears each finished with 14 points, and they are now battling it out in a five-minute overtime.
Answer: Option D
Explanation:
This is the only choice that indicates that an additional period of play is taking place to determine the winner of a game that ended in a tie.
7)In the Maple Hill school district, a Five-Day Suspension occurs when a student is not permitted to attend school for five days for (1) physically assaulting another student, a teacher, or a school employee or (2) willfully destructing or defacing school property. Which situation below is the best example of a Five-Day Suspension?
A.Lillian gets caught cheating on a math test for the second time and is suspended from school.
B.Marc is asked to leave the classroom due to his constant disruptions.
C.Franny uses spray paint to write derogatory comments on the locker room wall and she is given a suspension.
D.Ms. Farmer tells her class that students who fail the midterm exam will be expected to stay after school for tutoring help.
Answer: Option C
Explanation:
Although choices a and c both describe suspensions, only choice c describes a suspension that is the result of one of the two scenarios given in the definition of a five-day suspension (physical assault or destructing or defacing school property). Therefore, we can assume that Franny's suspension, which is the result of spray painting school property, will be a five-day suspension. Since the definition doesn't provide any information about suspensions for cheating, we can assume that Lillian's suspension does not fall into the five-day suspension category.
8)Erratic Behavior occurs when an individual acts in a manner that lacks consistency, regularity, and uniformity. Which situation below is the best example of Erratic Behavior?
A.Julia cannot contain her anger whenever the subject of local politics is discussed.
B.Martin has just been told that he is being laid off. Before leaving his supervisor's office, he punches a hole in the door.
C.Rhonda has visited the dealership several times, but she still cannot decide which car to buy.
D.In the past month, Jeffrey, who has been a model employee for three years, has repeatedly called in sick, forgotten important meetings, and been verbally abusive to colleagues.
Answer: Option D
Explanation:
Jeffrey's recent behavior is clearly inconsistent and irregular.
9)A Guarantee is a promise or assurance that attests to the quality of a product that is either (1) given in writing by the manufacturer or (2) given verbally by the person selling the product. Which situation below is the best example of a Guarantee?
A.Melissa purchases a DVD player with the highest consumer ratings in its category.
B.The salesperson advises Curt to be sure that he buys an air conditioner with a guarantee.
C.The local auto body shop specializes in refurbishing and selling used cars.
D.Lori buys a used digital camera from her coworker who says that she will refund Lori's money if the camera's performance is not of the highest quality.
Answer: Option D
Explanation:
Choices a, b, and c do not describe situations in which a product is guaranteed. Only choice d reflects a situation in which a seller attests to the quality of a product by giving the buyer a promise or assurance about its quality.
10)The rules of baseball state that a batter Legally Completes His Time at Bat when he is put out or becomes a base runner. Which situation below is the best example of a batter Legally Completing His Time at Bat?
A.Jared's blooper over the head of the short-stop puts him in scoring position.
B.The umpire calls a strike, even though the last pitch was way outside.
C.The pitcher throws his famous knuckleball, Joe swings and misses, and the umpire calls a strike.
D.The count is two balls and two strikes as Mario waits for the next pitch.
Answer: Option A
Explanation:
The fact that Jared is in scoring position due to his blooper indicates that he has hit the ball and is now a base runner; therefore, he has legally completed his time at bat. Choices b and c both describe situations in which a strike is called, but they do not state that the batter has been put out or that he is now a base runner. Choice d describes a situation in which the batter, Mario, is still at the plate waiting for the next pitch.
11) It is appropriate to compensate someone if you have damaged his or her property in some way. This is called Restitution. Which situation below is the best example of Restitution?
A.Jake borrows Leslie's camera and the lens shatters when it falls on the ground because he fails to zipper the case.When Jake returns the camera, he tells Leslie that he will pay for the repair.
B.Rebecca borrows her neighbor's car, and when she returns it, the gas tank is practically empty. She apologizes profusely and tells her neighbor she will be more considerate the next time.
C.Aaron asks Tom to check in on his apartment while he is out of town. When Tom arrives, he discovers that a pipe has burst and there is a considerable amount of water damage. He calls a plumber to repair the pipe.
D.Lisa suspects that the pothole in her company's parking lot caused her flat tire. She tells her boss that she thinks the company should pay for the repair.
Answer: Option A
Explanation:
Jake damaged Leslie's camera while it was in his possession and he has agreed to compensate Leslie for the cost of the repair.
THEME DETECTION
Though the waste of time or the expenditure on fashions is very large, yet fashions have come to stay. They will not go, come what may. However, what is now required is that strong efforts should be made to displace the excessive craze for fashion from the minds of these youngsters. The passage best supports the statement that:
A. fashion is the need of the day.
B. the excessive craze for fashion is detrimental to one's personality.
C. the hoard for fashion should be done away with so as not to let down the constructive development.
D. work and other activities should be valued more than the outward appearance.
Answer: Option C
2)Emerson said that the poet was landlord, Sealord, airlord. The flight of imagination made the poet master of land, sea and air. But a poet's dream of yesterday becomes today an actual achievement and a reality for all men. Even those who invented, improved and perfected the aeroplane could hardly have dreamt of the possibility of flight into outer space. The passage best supports the statement that:
A.seemingly impossible imaginations make one a good poet,
B.all imaginations become a reality some day.
C.what man imagined has never been impossible; he has always turned it a reality through his conception of ideas and sheer hard labour.
D.man has reached the climax of technological development with his exploration into outer space.
Answer: Option C
3)The school has always been the most important means of transferring the wealth of tradition form one generation to the next. This applies today in an even higher degree than in former times for, through the modern development of economy, the family as bearer of tradition and education has become weakened. This passage best supports the statement that for transferring the wealth of tradition from one generation to the next -
A.there are means other than the school.
B.several different sources must be tried.
C.economic development plays a crucial role
D.modern technology must be put to use.
E.family, as ever, is the most potent means.
Answer: Option C
4)Industrial exhibitions play a major role in a country's economy. Such exhibitions, now regularly held in Delhi, enable us to measure the extent of our own less advanced industrial progress and the mighty industrial power and progress of countries like the U.K., U.S.A. and Russia whose pavilions are the centres of the greatest attention and attractions. The passage best supports the statement that industrial exhibitions -
A.greatly tax the poor economies.
B.are more useful for the developed countries like U.S.A. whose products stand out superior to those of the developing countries.
C.are not of much use to the countries who are industrially backward.
D.boost up production qualitatively and quantitatively by analytical comparison of a country's products with those of the developed countries
Answer: Option D
5)To forgive an injury is often considered to be a sign of weakness; it is really a sign of strength. It is easy to allow oneself to be carried away by resentment and hate into an act of vengeance; but it takes a strong character to restrain those natural passions. The man who forgives an injury proves himself to be the superior of the man who wronged himself and puts the wrong-doer to shame. The passage best supports' the statement that:
A.the sufferer alone knows the intensity of his sufferings.
B.people tend to forgive the things happened in the past.
C.natural passions are difficult to suppress.
D.mercy is the noblest form of revenge.
E.a person with calm and composed nature has depth of thought and vision.
Answer: Option D
6)The prevention of accidents makes it necessary not only that safety devices be used to guard exposed machinery but also that mechanics be instructed in safety rules which they must follow for their own protection, and that lighting in the plant be adequate.
The passage best supports the statement that industrial accidents -
A.are always avoidable;
B.may be due to ignorance.
C.cannot be entirely overcome.
D.can be eliminated with the help of safety rules.
E.usually result from inadequate machinery.
Answer: Option D
7) The future of women in India is quite bright and let us hope that they will justify their abilities by rising to the occasion. Napoleon was right when he declared that by educating the women we can educate the whole nation. Because a country can never rise without the contribution of 50% of their population.
The passage best supports the statement that:
A.India is striving hard for the emancipation of women.
B.all women should be well educated.
C.a nation can progress only when women are given equal rights and opportunities as men.
D.women ought to be imparted full freedom to prove their worth and contribute to the progress of the nation.
Answer: Option D
8)One of the important humanitarian by-products of technology is the greater dignity and value that it imparts to human labour. In a highly industrialized society, there is no essential difference between Brahmin and Dalit, Muslim and Hindu; they are equally useful and hence equally valuable for in the industrial society individual productivity fixes the size of the pay cheque and this fixes social status.
The passage best supports the statement that:
A.technology decides individual's social status.
B.castes and religions are man-made.
C.human labour has dignity and value.
D.all individuals, irrespective of caste and creed, are born equal.
E.industrial society is a great leveller of men.
Answer: Option C
9)There is a shift in our economy from a manufacturing to a service orientation. The increase in service-sector will require the managers to work more with people rather than with objects and things from the assembly line. This passage best supports the statement that:
A.managers should have a balanced mind.
B.assembly line will exist in service organisations.
C.interpersonal skills will become more important in the future work place.
D.manufacturing organisations ignore importance of people.
E.service organisations will not deal with objects and things.
Answer: Option C
10) The virtue of art does not allow the work to be interfered with or immediately ruled by anything other than itself. It insists that it alone shall touch the work in order to bring it into being. Art requires that nothing shall attain the work except through art itself. This passage best supports the statement that:
A.art is governed by external rules and conditions.
B.art is for the sake of art and life.
C.art is for the sake of art alone.
D.artist realises his dreams through his artistic creation.
E.artist should use his art for the sake of society.
Answer: Option C