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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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Q431. What is the LCM of 10 and 35?

  1. 70
  2. 140
  3. 65
  4. 75
Show answer and explanation

Correct answer: A. 70

LCM = (x*y)/HCF = 350/5 = 70.

Q432. Find the next number: 4, 12, 20, 28, 36, ?

  1. 44
  2. 52
  3. 43
  4. 45
Show answer and explanation

Correct answer: A. 44

The series increases by 8; next = 44.

Q433. What is the cube of 3?

  1. 24
  2. 36
  3. 27
  4. 30
Show answer and explanation

Correct answer: C. 27

3^3 = 27.

Q434. What is the supplement of 30 degrees?

  1. 140 degrees
  2. 60 degrees
  3. 160 degrees
  4. 150 degrees
Show answer and explanation

Correct answer: D. 150 degrees

Supplementary angles add to 180: 180-30 = 150.

Q435. If 3x + 6 = 24, find x.

  1. 5
  2. 8
  3. 7
  4. 6
Show answer and explanation

Correct answer: D. 6

3x = 18, so x = 6.

Q436. Find the area of a rectangle with length 24 cm and breadth 11 cm (in sq cm).

  1. 264
  2. 288
  3. 70
  4. 253
Show answer and explanation

Correct answer: A. 264

Area = l x b = 264.

Q437. Find the area of a rectangle with length 13 cm and breadth 20 cm (in sq cm).

  1. 260
  2. 273
  3. 240
  4. 66
Show answer and explanation

Correct answer: A. 260

Area = l x b = 260.

Q438. What is the LCM of 72 and 36?

  1. 108
  2. 36
  3. 72
  4. 144
Show answer and explanation

Correct answer: C. 72

LCM = (x*y)/HCF = 2592/36 = 72.

Q439. What is the circumference of a circle of radius 28 cm? (use pi = 22/7)

  1. 204
  2. 2464
  3. 88
  4. 176
Show answer and explanation

Correct answer: D. 176

Circumference = 2 pi r = 176.

Q440. If 6 kg of sugar costs Rs. 240, find the cost of 12 kg (in Rs.).

  1. 440
  2. 480
  3. 520
  4. 490
Show answer and explanation

Correct answer: B. 480

Cost of 1 kg = 40; for 12 kg = 480.

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