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Police & Uniformed Services Mathematics MCQs with Answers

85 practice MCQs on Mathematics for Police & Uniformed Services tests. Think of your answer first, then open "Show answer and explanation". These are practice questions, not official examination papers.

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Q61. Find the next number: 2, 6, 18, 54, 162, ?

  1. 648
  2. 489
  3. 486
  4. 483
Show answer and explanation

Correct answer: C. 486

Each term is multiplied by 3; next = 486.

Q62. What is the range of 4, 9, 15, 22, 30?

  1. 26
  2. 30
  3. 4
  4. 22
Show answer and explanation

Correct answer: A. 26

Range = max - min = 30-4 = 26.

Q63. What is the LCM of 20 and 8?

  1. 36
  2. 44
  3. 40
  4. 80
Show answer and explanation

Correct answer: C. 40

LCM = (x*y)/HCF = 160/4 = 40.

Q64. A number 800 is increased by 50%. What is the new number?

  1. 850
  2. 1210
  3. 1200
  4. 1190
Show answer and explanation

Correct answer: C. 1200

800 x (100+50)/100 = 1200.

Q65. What is 12% of 800?

  1. 96
  2. 192
  3. 91
  4. 106
Show answer and explanation

Correct answer: A. 96

12% of 800 = 12/100 x 800 = 96.

Q66. If 2x + 7 = 31, find x.

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

Correct answer: D. 12

2x = 24, so x = 12.

Q67. A bus covers 360 km in 3 hours. What is its average speed in km/h?

  1. 130
  2. 125
  3. 115
  4. 120
Show answer and explanation

Correct answer: D. 120

Speed = 360/3 = 120 km/h.

Q68. Find the total surface area of a cube of side 5 cm (in sq cm).

  1. 125
  2. 100
  3. 30
  4. 150
Show answer and explanation

Correct answer: D. 150

TSA = 6 x side^2 = 150.

Q69. What is the cube of 12?

  1. 1716
  2. 1740
  3. 1728
  4. 1872
Show answer and explanation

Correct answer: C. 1728

12^3 = 1728.

Q70. Find the next number: 11, 19, 27, 35, 43, ?

  1. 50
  2. 52
  3. 51
  4. 59
Show answer and explanation

Correct answer: C. 51

The series increases by 8; next = 51.

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