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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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Q31. An item bought for Rs. 1200 is sold at 30% profit. What is the selling price in Rs.?

  1. 1230
  2. 1580
  3. 1560
  4. 1540
Show answer and explanation

Correct answer: C. 1560

SP = 1200 x 130/100 = 1560.

Q32. If 9x + 2 = 110, find x.

  1. 13
  2. 14
  3. 11
  4. 12
Show answer and explanation

Correct answer: D. 12

9x = 108, so x = 12.

Q33. An item bought for Rs. 1500 is sold at 20% profit. What is the selling price in Rs.?

  1. 1520
  2. 1780
  3. 1820
  4. 1800
Show answer and explanation

Correct answer: D. 1800

SP = 1500 x 120/100 = 1800.

Q34. Find the next number: 16, 22, 28, 34, 40, ?

  1. 46
  2. 45
  3. 47
  4. 52
Show answer and explanation

Correct answer: A. 46

The series increases by 6; next = 46.

Q35. How many zeros are there in one billion?

  1. 6
  2. 10
  3. 9
  4. 8
Show answer and explanation

Correct answer: C. 9

One billion is 1,000,000,000.

Q36. Find the volume of a cuboid of 5 cm x 9 cm x 11 cm (in cubic cm).

  1. 495
  2. 398
  3. 486
  4. 500
Show answer and explanation

Correct answer: A. 495

Volume = lbh = 495.

Q37. What is the supplement of 60 degrees?

  1. 110 degrees
  2. 120 degrees
  3. 130 degrees
  4. 30 degrees
Show answer and explanation

Correct answer: B. 120 degrees

Supplementary angles add to 180: 180-60 = 120.

Q38. What is 25% of 300?

  1. 85
  2. 150
  3. 75
  4. 70
Show answer and explanation

Correct answer: C. 75

25% of 300 = 25/100 x 300 = 75.

Q39. A number 800 is increased by 20%. What is the new number?

  1. 970
  2. 950
  3. 820
  4. 960
Show answer and explanation

Correct answer: D. 960

800 x (100+20)/100 = 960.

Q40. If 25% of a number is 40, what is the number?

  1. 140
  2. 320
  3. 180
  4. 160
Show answer and explanation

Correct answer: D. 160

Number = 40 x 100/25 = 160.

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