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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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Q211. A number 800 is increased by 10%. What is the new number?

  1. 880
  2. 870
  3. 890
  4. 810
Show answer and explanation

Correct answer: A. 880

800 x (100+10)/100 = 880.

Q212. If 10 pens cost Rs. 400, what is the cost of 1 pen (in Rs.)?

  1. 45
  2. 80
  3. 35
  4. 40
Show answer and explanation

Correct answer: D. 40

400/10 = 40.

Q213. What is 5% of 120?

  1. 16
  2. 6
  3. 12
  4. 1
Show answer and explanation

Correct answer: B. 6

5% of 120 = 5/100 x 120 = 6.

Q214. The average of 7 numbers is 27. If 6 of them are 23, 25, 25, 33, 24, 29, what is the remaining number?

  1. 31
  2. 35
  3. 29
  4. 30
Show answer and explanation

Correct answer: D. 30

Total = 27x7 = 189; remaining = 189-159 = 30.

Q215. What is 6.4 + 7.8?

  1. 14.1
  2. 14.3
  3. 14.2
  4. 15.2
Show answer and explanation

Correct answer: C. 14.2

6.4 + 7.8 = 14.2.

Q216. The marked price of an article is Rs. 1200. After a discount of 5%, what is the selling price in Rs.?

  1. 1090
  2. 1190
  3. 1140
  4. 1195
Show answer and explanation

Correct answer: C. 1140

SP = 1200 x 95/100 = 1140.

Q217. Add: 7/6 + 3/8

  1. 25/16
  2. 73/48
  3. 37/24
  4. 10/14
Show answer and explanation

Correct answer: C. 37/24

Convert to common denominator and add.

Q218. Convert 54 km/h into m/s.

  1. 194.4
  2. 17
  3. 15
  4. 13
Show answer and explanation

Correct answer: C. 15

Multiply by 5/18: 54 x 5/18 = 15 m/s.

Q219. What is the HCF of 40 and 64?

  1. 10
  2. 9
  3. 8
  4. 16
Show answer and explanation

Correct answer: C. 8

The greatest common divisor of 40 and 64 is 8.

Q220. A shopkeeper buys a watch for Rs. 2000 and sells it at a 25% loss. Find the selling price in Rs.

  1. 1975
  2. 1470
  3. 1500
  4. 1530
Show answer and explanation

Correct answer: C. 1500

SP = 2000 x 75/100 = 1500.

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