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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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Q1. What is 20% of 250?

  1. 25
  2. 40
  3. 50
  4. 60
Show answer and explanation

Correct answer: C. 50

20% = 20/100, and 250 x 0.20 = 50.

Q2. What is the area of a square of side 7 cm (in sq cm)?

  1. 98
  2. 56
  3. 28
  4. 49
Show answer and explanation

Correct answer: D. 49

Area = side^2 = 49.

Q3. Find the roots of x^2 - 5x + 6 = 0.

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

Correct answer: B. 3 and 2

The equation factors as (x-3)(x-2) = 0.

Q4. Find the next number: 7, 10, 13, 16, 19, ?

  1. 23
  2. 22
  3. 25
  4. 21
Show answer and explanation

Correct answer: B. 22

The series increases by 3; next = 22.

Q5. What is 40% of 200?

  1. 90
  2. 160
  3. 75
  4. 80
Show answer and explanation

Correct answer: D. 80

40% of 200 = 40/100 x 200 = 80.

Q6. What is the sum of first 20 natural numbers?

  1. 200
  2. 190
  3. 210
  4. 220
Show answer and explanation

Correct answer: C. 210

20x21/2 = 210.

Q7. An item bought for Rs. 400 is sold at 20% profit. What is the selling price in Rs.?

  1. 480
  2. 460
  3. 500
  4. 420
Show answer and explanation

Correct answer: A. 480

SP = 400 x 120/100 = 480.

Q8. What is the supplement of 100 degrees?

  1. 80 degrees
  2. 90 degrees
  3. 70 degrees
  4. 10 degrees
Show answer and explanation

Correct answer: A. 80 degrees

Supplementary angles add to 180: 180-100 = 80.

Q9. Divide Rs. 40 in the ratio 3:5. What is the larger share in Rs.?

  1. 15
  2. 20
  3. 25
  4. 30
Show answer and explanation

Correct answer: C. 25

Parts = 8; each part = 5; larger share = 25.

Q10. A car travels at 40 km/h for 5 hours. How far does it travel (in km)?

  1. 220
  2. 240
  3. 190
  4. 200
Show answer and explanation

Correct answer: D. 200

Distance = speed x time = 200 km.

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