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Teaching Jobs Mathematics MCQs with Answers

86 practice MCQs on Mathematics for Teaching Jobs tests. Think of your answer first, then open "Show answer and explanation". These are practice questions, not official examination papers.

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Q71. What is the HCF of 9 and 6?

  1. 4
  2. 3
  3. 5
  4. 6
Show answer and explanation

Correct answer: B. 3

The greatest common divisor of 9 and 6 is 3.

Q72. What is the square of 27?

  1. 729
  2. 783
  3. 756
  4. 702
Show answer and explanation

Correct answer: A. 729

27 x 27 = 729.

Q73. What is 85 x 40?

  1. 3430
  2. 3300
  3. 3400
  4. 3500
Show answer and explanation

Correct answer: C. 3400

85 x 40 = 3400.

Q74. If CP is Rs. 400 and SP is Rs. 560, find the profit percentage.

  1. 50%
  2. 35%
  3. 45%
  4. 40%
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Correct answer: D. 40%

Profit = 160; Profit% = (160/400) x 100 = 40%.

Q75. Find the roots of x^2 - 12x + 27 = 0.

  1. 9 and 3
  2. -9 and -3
  3. 9 and 4
  4. 10 and 3
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Correct answer: A. 9 and 3

The equation factors as (x-9)(x-3) = 0.

Q76. What is the sum of first 10 natural numbers?

  1. 55
  2. 50
  3. 45
  4. 60
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Correct answer: A. 55

n(n+1)/2 = 10x11/2 = 55.

Q77. If x + y = 8 and x - y = -6, find x.

  1. 7
  2. 0
  3. 2
  4. 1
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Correct answer: D. 1

Adding the equations: 2x = 2; x = 1.

Q78. In a right-angled triangle, the two legs are 6 cm and 8 cm. Find the hypotenuse (in cm).

  1. 14
  2. 11
  3. 10
  4. 9
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Correct answer: C. 10

Hypotenuse = sqrt(6^2+8^2) = 10.

Q79. How many degrees are in a right angle?

  1. 180
  2. 90
  3. 45
  4. 60
Show answer and explanation

Correct answer: B. 90

A right angle is 90 degrees.

Q80. What is 40% of 150?

  1. 60
  2. 70
  3. 120
  4. 55
Show answer and explanation

Correct answer: A. 60

40% of 150 = 40/100 x 150 = 60.

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