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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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Q91. Find the simple interest on Rs. 1000 at 8% per annum for 4 years (in Rs.).

  1. 640
  2. 420
  3. 320
  4. 220
Show answer and explanation

Correct answer: C. 320

SI = PRT/100 = 1000 x 8 x 4/100 = 320.

Q92. What is the LCM of 40 and 64?

  1. 312
  2. 640
  3. 320
  4. 328
Show answer and explanation

Correct answer: C. 320

LCM = (x*y)/HCF = 2560/8 = 320.

Q93. What is the cube of 5?

  1. 125
  2. 130
  3. 120
  4. 150
Show answer and explanation

Correct answer: A. 125

5^3 = 125.

Q94. Find the simple interest on Rs. 5000 at 5% per annum for 3 years (in Rs.).

  1. 650
  2. 750
  3. 850
  4. 1500
Show answer and explanation

Correct answer: B. 750

SI = PRT/100 = 5000 x 5 x 3/100 = 750.

Q95. Find the area of a rectangle with length 16 cm and breadth 10 cm (in sq cm).

  1. 160
  2. 176
  3. 150
  4. 52
Show answer and explanation

Correct answer: A. 160

Area = l x b = 160.

Q96. What is the area of a square of side 6 cm (in sq cm)?

  1. 36
  2. 72
  3. 24
  4. 42
Show answer and explanation

Correct answer: A. 36

Area = side^2 = 36.

Q97. An item bought for Rs. 800 is sold at 5% profit. What is the selling price in Rs.?

  1. 820
  2. 840
  3. 805
  4. 860
Show answer and explanation

Correct answer: B. 840

SP = 800 x 105/100 = 840.

Q98. Find the next number: 5, 15, 45, 135, 405, ?

  1. 1212
  2. 1215
  3. 1620
  4. 1218
Show answer and explanation

Correct answer: B. 1215

Each term is multiplied by 3; next = 1215.

Q99. Find the area of a triangle with base 14 cm and height 7 cm (in sq cm).

  1. 98
  2. 21
  3. 56
  4. 49
Show answer and explanation

Correct answer: D. 49

Area = 1/2 x base x height = 49.

Q100. Find the roots of x^2 - 6x + 8 = 0.

  1. 4 and 3
  2. -4 and -2
  3. 4 and 2
  4. 5 and 2
Show answer and explanation

Correct answer: C. 4 and 2

The equation factors as (x-4)(x-2) = 0.

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