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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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Q21. If x + y = 10 and x - y = 2, find x.

  1. 6
  2. 7
  3. 5
  4. 4
Show answer and explanation

Correct answer: A. 6

Adding the equations: 2x = 12; x = 6.

Q22. What is 27 x 52?

  1. 1424
  2. 1414
  3. 1354
  4. 1404
Show answer and explanation

Correct answer: D. 1404

27 x 52 = 1404.

Q23. What is the sum of angles of a triangle?

  1. 270 degrees
  2. 90 degrees
  3. 180 degrees
  4. 360 degrees
Show answer and explanation

Correct answer: C. 180 degrees

The three interior angles sum to 180.

Q24. Find the volume of a cuboid of 6 cm x 8 cm x 3 cm (in cubic cm).

  1. 150
  2. 136
  3. 180
  4. 144
Show answer and explanation

Correct answer: D. 144

Volume = lbh = 144.

Q25. Find the simple interest on Rs. 10000 at 8% per annum for 3 years (in Rs.).

  1. 2400
  2. 2300
  3. 2500
  4. 4800
Show answer and explanation

Correct answer: A. 2400

SI = PRT/100 = 10000 x 8 x 3/100 = 2400.

Q26. The average of 7 numbers is 16. If 6 of them are 24, 11, 15, 16, 18, 19, what is the remaining number?

  1. 9
  2. 8
  3. 10
  4. 14
Show answer and explanation

Correct answer: A. 9

Total = 16x7 = 112; remaining = 112-103 = 9.

Q27. What is the HCF of 28 and 20?

  1. 8
  2. 5
  3. 6
  4. 4
Show answer and explanation

Correct answer: D. 4

The greatest common divisor of 28 and 20 is 4.

Q28. An item bought for Rs. 1200 is sold at 10% profit. What is the selling price in Rs.?

  1. 1210
  2. 1340
  3. 1320
  4. 1300
Show answer and explanation

Correct answer: C. 1320

SP = 1200 x 110/100 = 1320.

Q29. Add: 2/6 + 3/2

  1. 11/6
  2. 5/8
  3. 7/4
  4. 23/12
Show answer and explanation

Correct answer: A. 11/6

Convert to common denominator and add.

Q30. Find the next number: 5, 10, 15, 20, 25, ?

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

Correct answer: C. 30

The series increases by 5; next = 30.

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