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Mathematics MCQs with Answers

Mathematics and quantitative reasoning questions appear in many job and entry tests. Practice arithmetic, algebra, percentages, ratios, averages, profit and loss, and geometry. Attempt timed MCQ tests to improve both your speed and accuracy.

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Q181. What is the cube root of 8?

  1. 1
  2. 3
  3. 4
  4. 2
Show answer and explanation

Correct answer: D. 2

2^3 = 8.

Q182. If CP is Rs. 500 and SP is Rs. 600, find the profit percentage.

  1. 15%
  2. 25%
  3. 30%
  4. 20%
Show answer and explanation

Correct answer: D. 20%

Profit = 100; Profit% = (100/500) x 100 = 20%.

Q183. What is the measure of each interior angle of a regular hexagon?

  1. 135 degrees
  2. 108 degrees
  3. 150 degrees
  4. 120 degrees
Show answer and explanation

Correct answer: D. 120 degrees

(6-2)x180/6 = 120.

Q184. A father is 33 years old and his son is 8. What will be the sum of their ages after 9 years?

  1. 59
  2. 50
  3. 41
  4. 68
Show answer and explanation

Correct answer: A. 59

Sum now = 41; after 9 years add 2x9.

Q185. If 3 kg of sugar costs Rs. 120, find the cost of 20 kg (in Rs.).

  1. 810
  2. 800
  3. 760
  4. 840
Show answer and explanation

Correct answer: B. 800

Cost of 1 kg = 40; for 20 kg = 800.

Q186. If 5x + 18 = 28, find x.

  1. 4
  2. 2
  3. 3
  4. 1
Show answer and explanation

Correct answer: B. 2

5x = 10, so x = 2.

Q187. What is the square of 19?

  1. 361
  2. 342
  3. 380
  4. 399
Show answer and explanation

Correct answer: A. 361

19 x 19 = 361.

Q188. 30 is what percent of 50?

  1. 65%
  2. 60%
  3. 55%
  4. 120%
Show answer and explanation

Correct answer: B. 60%

(30/50) x 100 = 60%.

Q189. What is the HCF of 28 and 24?

  1. 5
  2. 8
  3. 6
  4. 4
Show answer and explanation

Correct answer: D. 4

The greatest common divisor of 28 and 24 is 4.

Q190. What is the square of 14?

  1. 182
  2. 210
  3. 196
  4. 224
Show answer and explanation

Correct answer: C. 196

14 x 14 = 196.

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