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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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Q191. What is the LCM of 16 and 24?

  1. 96
  2. 40
  3. 48
  4. 56
Show answer and explanation

Correct answer: C. 48

LCM = (x*y)/HCF = 384/8 = 48.

Q192. Find the next number: 16, 25, 36, 49, 64, ?

  1. 81
  2. 82
  3. 80
  4. 83
Show answer and explanation

Correct answer: A. 81

The series is of consecutive squares.

Q193. A bus covers 150 km in 3 hours. What is its average speed in km/h?

  1. 55
  2. 60
  3. 45
  4. 50
Show answer and explanation

Correct answer: D. 50

Speed = 150/3 = 50 km/h.

Q194. What is 60% of 500?

  1. 310
  2. 295
  3. 300
  4. 600
Show answer and explanation

Correct answer: C. 300

60% of 500 = 60/100 x 500 = 300.

Q195. A shopkeeper buys a watch for Rs. 400 and sells it at a 25% loss. Find the selling price in Rs.

  1. 375
  2. 270
  3. 300
  4. 330
Show answer and explanation

Correct answer: C. 300

SP = 400 x 75/100 = 300.

Q196. If CP is Rs. 2000 and SP is Rs. 2100, find the profit percentage.

  1. 15%
  2. 10%
  3. 1%
  4. 5%
Show answer and explanation

Correct answer: D. 5%

Profit = 100; Profit% = (100/2000) x 100 = 5%.

Q197. What is the square of 40?

  1. 1640
  2. 1680
  3. 1600
  4. 1560
Show answer and explanation

Correct answer: C. 1600

40 x 40 = 1600.

Q198. Which of the following is a prime number?

  1. 49
  2. 57
  3. 47
  4. 51
Show answer and explanation

Correct answer: C. 47

47 has no divisors other than 1 and itself.

Q199. Find the area of a triangle with base 8 cm and height 15 cm (in sq cm).

  1. 23
  2. 60
  3. 120
  4. 75
Show answer and explanation

Correct answer: B. 60

Area = 1/2 x base x height = 60.

Q200. If 8 kg of sugar costs Rs. 240, find the cost of 15 kg (in Rs.).

  1. 480
  2. 460
  3. 420
  4. 450
Show answer and explanation

Correct answer: D. 450

Cost of 1 kg = 30; for 15 kg = 450.

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