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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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Q41. What is the square of 25?

  1. 625
  2. 675
  3. 600
  4. 650
Show answer and explanation

Correct answer: A. 625

25 x 25 = 625.

Q42. If 25% of a number is 30, what is the number?

  1. 140
  2. 240
  3. 100
  4. 120
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Correct answer: D. 120

Number = 30 x 100/25 = 120.

Q43. Divide Rs. 99 in the ratio 8:3. What is the larger share in Rs.?

  1. 27
  2. 63
  3. 72
  4. 81
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Correct answer: C. 72

Parts = 11; each part = 9; larger share = 72.

Q44. Find the compound interest on Rs. 2000 at 10% per annum for 2 years, compounded annually (in Rs.).

  1. 470
  2. 420
  3. 400
  4. 370
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Correct answer: B. 420

A = P(1+R/100)^2; CI = 420.

Q45. If 6x + 6 = 18, find x.

  1. 1
  2. 2
  3. 3
  4. 4
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Correct answer: B. 2

6x = 12, so x = 2.

Q46. In a right-angled triangle, the two legs are 3 cm and 4 cm. Find the hypotenuse (in cm).

  1. 4
  2. 5
  3. 7
  4. 6
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Correct answer: B. 5

Hypotenuse = sqrt(3^2+4^2) = 5.

Q47. If 2x + 12 = 36, find x.

  1. 11
  2. 14
  3. 13
  4. 12
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Correct answer: D. 12

2x = 24, so x = 12.

Q48. What is the average of 28, 35, 25, 42, 30?

  1. 34
  2. 33
  3. 32
  4. 31
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Correct answer: C. 32

Sum = 160; average = 160/5 = 32.

Q49. 20 is what percent of 80?

  1. 20%
  2. 25%
  3. 50%
  4. 30%
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Correct answer: B. 25%

(20/80) x 100 = 25%.

Q50. A shopkeeper buys a watch for Rs. 2000 and sells it at a 5% loss. Find the selling price in Rs.

  1. 1995
  2. 1900
  3. 1870
  4. 1930
Show answer and explanation

Correct answer: B. 1900

SP = 2000 x 95/100 = 1900.

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