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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Q421. What is the measure of each interior angle of an equilateral triangle?

  1. 90 degrees
  2. 30 degrees
  3. 45 degrees
  4. 60 degrees
Show answer and explanation

Correct answer: D. 60 degrees

180/3 = 60.

Q422. What is 71 x 34?

  1. 2394
  2. 2414
  3. 2514
  4. 2314
Show answer and explanation

Correct answer: B. 2414

71 x 34 = 2414.

Q423. The marked price of an article is Rs. 800. After a discount of 20%, what is the selling price in Rs.?

  1. 690
  2. 780
  3. 640
  4. 590
Show answer and explanation

Correct answer: C. 640

SP = 800 x 80/100 = 640.

Q424. Roman numeral for 500 is:

  1. C
  2. D
  3. M
  4. L
Show answer and explanation

Correct answer: B. D

D = 500.

Q425. What is the cube of 8?

  1. 504
  2. 576
  3. 520
  4. 512
Show answer and explanation

Correct answer: D. 512

8^3 = 512.

Q426. The diameter of a circle is how many times its radius?

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

Correct answer: D. 2

d = 2r.

Q427. What is 20% of 200?

  1. 40
  2. 80
  3. 50
  4. 35
Show answer and explanation

Correct answer: A. 40

20% of 200 = 20/100 x 200 = 40.

Q428. If 40% of a number is 40, what is the number?

  1. 80
  2. 100
  3. 200
  4. 120
Show answer and explanation

Correct answer: B. 100

Number = 40 x 100/40 = 100.

Q429. If CP is Rs. 500 and SP is Rs. 650, find the profit percentage.

  1. 35%
  2. 40%
  3. 25%
  4. 30%
Show answer and explanation

Correct answer: D. 30%

Profit = 150; Profit% = (150/500) x 100 = 30%.

Q430. What is the supplement of 150 degrees?

  1. 60 degrees
  2. 20 degrees
  3. 40 degrees
  4. 30 degrees
Show answer and explanation

Correct answer: D. 30 degrees

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

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