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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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Q371. How many seconds are in one hour?

  1. 60
  2. 6000
  3. 360
  4. 3600
Show answer and explanation

Correct answer: D. 3600

60 x 60 = 3600.

Q372. How many weeks are in a year (approx. complete)?

  1. 50
  2. 52
  3. 54
  4. 48
Show answer and explanation

Correct answer: B. 52

365/7 is about 52 weeks.

Q373. A bus covers 360 km in 3 hours. What is its average speed in km/h?

  1. 130
  2. 125
  3. 115
  4. 120
Show answer and explanation

Correct answer: D. 120

Speed = 360/3 = 120 km/h.

Q374. Find the perimeter of a rectangle with length 11 cm and breadth 6 cm (in cm).

  1. 34
  2. 28
  3. 66
  4. 17
Show answer and explanation

Correct answer: A. 34

Perimeter = 2(l+b) = 34.

Q375. What is the unit digit of 3^5?

  1. 9
  2. 7
  3. 1
  4. 3
Show answer and explanation

Correct answer: D. 3

3^5 = 243, unit digit 3.

Q376. What is the square of 27?

  1. 729
  2. 783
  3. 756
  4. 702
Show answer and explanation

Correct answer: A. 729

27 x 27 = 729.

Q377. If 40% of a number is 100, what is the number?

  1. 270
  2. 500
  3. 230
  4. 250
Show answer and explanation

Correct answer: D. 250

Number = 100 x 100/40 = 250.

Q378. A can finish a job in 20 days and B in 30 days. How many days will they take working together?

  1. 12
  2. 50
  3. 13
  4. 14
Show answer and explanation

Correct answer: A. 12

Combined rate = 1/20 + 1/30; time = 600/50.

Q379. If 2x + 16 = 38, find x.

  1. 13
  2. 11
  3. 10
  4. 12
Show answer and explanation

Correct answer: B. 11

2x = 22, so x = 11.

Q380. Find the total surface area of a cube of side 2 cm (in sq cm).

  1. 16
  2. 8
  3. 24
  4. 12
Show answer and explanation

Correct answer: C. 24

TSA = 6 x side^2 = 24.

Mathematics MCQs by exam

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