Test Preparation

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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Q41. Find the next number: 4, 8, 16, 32, 64, ?

  1. 126
  2. 192
  3. 128
  4. 130
Show answer and explanation

Correct answer: C. 128

Each term is multiplied by 2; next = 128.

Q42. A shopkeeper buys a watch for Rs. 1000 and sells it at a 25% loss. Find the selling price in Rs.

  1. 975
  2. 780
  3. 720
  4. 750
Show answer and explanation

Correct answer: D. 750

SP = 1000 x 75/100 = 750.

Q43. The average of 6 numbers is 44. If 5 of them are 47, 53, 36, 52, 45, what is the remaining number?

  1. 31
  2. 32
  3. 36
  4. 30
Show answer and explanation

Correct answer: A. 31

Total = 44x6 = 264; remaining = 264-233 = 31.

Q44. Convert 90 km/h into m/s.

  1. 25
  2. 27
  3. 324
  4. 23
Show answer and explanation

Correct answer: A. 25

Multiply by 5/18: 90 x 5/18 = 25 m/s.

Q45. What is the square root of 361?

  1. 19
  2. 21
  3. 18
  4. 20
Show answer and explanation

Correct answer: A. 19

19 x 19 = 361, so the root is 19.

Q46. A car travels at 90 km/h for 3 hours. How far does it travel (in km)?

  1. 270
  2. 360
  3. 290
  4. 260
Show answer and explanation

Correct answer: A. 270

Distance = speed x time = 270 km.

Q47. What is the area of a square of side 19 cm (in sq cm)?

  1. 76
  2. 380
  3. 722
  4. 361
Show answer and explanation

Correct answer: D. 361

Area = side^2 = 361.

Q48. Find the roots of x^2 - 11x + 28 = 0.

  1. 7 and 5
  2. 7 and 4
  3. 8 and 4
  4. -7 and -4
Show answer and explanation

Correct answer: B. 7 and 4

The equation factors as (x-7)(x-4) = 0.

Q49. If CP is Rs. 500 and SP is Rs. 700, find the profit percentage.

  1. 45%
  2. 35%
  3. 50%
  4. 40%
Show answer and explanation

Correct answer: D. 40%

Profit = 200; Profit% = (200/500) x 100 = 40%.

Q50. The average of 5 numbers is 27. If 4 of them are 21, 20, 29, 23, what is the remaining number?

  1. 42
  2. 47
  3. 41
  4. 43
Show answer and explanation

Correct answer: A. 42

Total = 27x5 = 135; remaining = 135-93 = 42.

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