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Clerical & Administrative Mathematics MCQs with Answers

86 practice MCQs on Mathematics for Clerical & Administrative tests. Think of your answer first, then open "Show answer and explanation". These are practice questions, not official examination papers.

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Q61. Find the next number: 12, 21, 30, 39, 48, ?

  1. 58
  2. 57
  3. 56
  4. 66
Show answer and explanation

Correct answer: B. 57

The series increases by 9; next = 57.

Q62. The average of 4 numbers is 45. If 3 of them are 52, 50, 44, what is the remaining number?

  1. 35
  2. 33
  3. 39
  4. 34
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Correct answer: D. 34

Total = 45x4 = 180; remaining = 180-146 = 34.

Q63. Add: 2/8 + 6/6

  1. 61/48
  2. 5/4
  3. 8/14
  4. 59/48
Show answer and explanation

Correct answer: B. 5/4

Convert to common denominator and add.

Q64. Add: 6/6 + 2/5

  1. 7/5
  2. 41/30
  3. 8/11
  4. 43/30
Show answer and explanation

Correct answer: A. 7/5

Convert to common denominator and add.

Q65. What is 71 x 34?

  1. 2394
  2. 2414
  3. 2514
  4. 2314
Show answer and explanation

Correct answer: B. 2414

71 x 34 = 2414.

Q66. What is the cube of 8?

  1. 504
  2. 576
  3. 520
  4. 512
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Correct answer: D. 512

8^3 = 512.

Q67. What is the LCM of 10 and 35?

  1. 70
  2. 140
  3. 65
  4. 75
Show answer and explanation

Correct answer: A. 70

LCM = (x*y)/HCF = 350/5 = 70.

Q68. What is the circumference of a circle of radius 28 cm? (use pi = 22/7)

  1. 204
  2. 2464
  3. 88
  4. 176
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Correct answer: D. 176

Circumference = 2 pi r = 176.

Q69. Find the next number: 25, 36, 49, 64, 81, ?

  1. 101
  2. 100
  3. 99
  4. 102
Show answer and explanation

Correct answer: B. 100

The series is of consecutive squares.

Q70. What is the LCM of 64 and 24?

  1. 192
  2. 184
  3. 384
  4. 200
Show answer and explanation

Correct answer: A. 192

LCM = (x*y)/HCF = 1536/8 = 192.

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