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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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Q231. What is the cube root of 729?

  1. 8
  2. 9
  3. 11
  4. 10
Show answer and explanation

Correct answer: B. 9

9^3 = 729.

Q232. What is the square of 30?

  1. 960
  2. 870
  3. 930
  4. 900
Show answer and explanation

Correct answer: D. 900

30 x 30 = 900.

Q233. Divide Rs. 78 in the ratio 6:7. What is the larger share in Rs.?

  1. 42
  2. 48
  3. 36
  4. 45
Show answer and explanation

Correct answer: A. 42

Parts = 13; each part = 6; larger share = 42.

Q234. The value of 6! is:

  1. 120
  2. 5040
  3. 720
  4. 360
Show answer and explanation

Correct answer: C. 720

6! = 720.

Q235. Simplify: (12+1)^2 - (12-1)^2

  1. 144
  2. 24
  3. 50
  4. 48
Show answer and explanation

Correct answer: D. 48

Using (p+q)^2-(p-q)^2 = 4pq = 4a.

Q236. If 3 kg of sugar costs Rs. 45, find the cost of 20 kg (in Rs.).

  1. 300
  2. 315
  3. 285
  4. 310
Show answer and explanation

Correct answer: A. 300

Cost of 1 kg = 15; for 20 kg = 300.

Q237. How many minutes are in one day?

  1. 1240
  2. 1440
  3. 1400
  4. 2400
Show answer and explanation

Correct answer: B. 1440

24 x 60 = 1440.

Q238. Simplify: (10+1)^2 - (10-1)^2

  1. 40
  2. 42
  3. 100
  4. 20
Show answer and explanation

Correct answer: A. 40

Using (p+q)^2-(p-q)^2 = 4pq = 4a.

Q239. Find the area of a triangle with base 18 cm and height 6 cm (in sq cm).

  1. 108
  2. 60
  3. 24
  4. 54
Show answer and explanation

Correct answer: D. 54

Area = 1/2 x base x height = 54.

Q240. What is the average of 31, 40, 25, 30, 39?

  1. 35
  2. 34
  3. 32
  4. 33
Show answer and explanation

Correct answer: D. 33

Sum = 165; average = 165/5 = 33.

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