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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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Q101. What is 42 x 12?

  1. 554
  2. 474
  3. 464
  4. 504
Show answer and explanation

Correct answer: D. 504

42 x 12 = 504.

Q102. Divide Rs. 56 in the ratio 2:5. What is the larger share in Rs.?

  1. 32
  2. 48
  3. 16
  4. 40
Show answer and explanation

Correct answer: D. 40

Parts = 7; each part = 8; larger share = 40.

Q103. Find the next number: 3, 12, 48, 192, 768, ?

  1. 3840
  2. 3072
  3. 3068
  4. 3076
Show answer and explanation

Correct answer: B. 3072

Each term is multiplied by 4; next = 3072.

Q104. What is the square root of 225?

  1. 16
  2. 15
  3. 14
  4. 17
Show answer and explanation

Correct answer: B. 15

15 x 15 = 225, so the root is 15.

Q105. The average of 4 numbers is 26. If 3 of them are 23, 30, 23, what is the remaining number?

  1. 28
  2. 27
  3. 29
  4. 33
Show answer and explanation

Correct answer: A. 28

Total = 26x4 = 104; remaining = 104-76 = 28.

Q106. A can finish a job in 12 days and B in 6 days. How many days will they take working together?

  1. 5
  2. 4
  3. 6
  4. 18
Show answer and explanation

Correct answer: B. 4

Combined rate = 1/12 + 1/6; time = 72/18.

Q107. If 5x + 7 = 17, find x.

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

Correct answer: C. 2

5x = 10, so x = 2.

Q108. If 9x + 13 = 49, find x.

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

Correct answer: D. 4

9x = 36, so x = 4.

Q109. A bus covers 360 km in 2 hours. What is its average speed in km/h?

  1. 175
  2. 180
  3. 190
  4. 185
Show answer and explanation

Correct answer: B. 180

Speed = 360/2 = 180 km/h.

Q110. What is 60% of 400?

  1. 235
  2. 250
  3. 480
  4. 240
Show answer and explanation

Correct answer: D. 240

60% of 400 = 60/100 x 400 = 240.

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