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Ladakh Police Constable · Reasoning · 44 practice questions with answers and explanations: 22 Easy, 21 Medium, 1 Hard.

Sample questions

Sample Easy question 1

Find the odd one out: 21, 28, 35, 40, 49

  1. 35
  2. 40
  3. 49
  4. 28
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Answer: B. All the other numbers are multiples of 7 (21, 28, 35, 49); 40 is not.

Sample Easy question 2

Find the next number: 100, 50, 25, 12.5, ?

  1. 7.5
  2. 5
  3. 6
  4. 6.25
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Answer: D. Each term is half the previous one: 12.5 ÷ 2 = 6.25.

Sample Easy question 3

Find the missing number: 3, 3, 6, 6, 9, ?, 12

  1. 9
  2. 6
  3. 10
  4. 12
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Answer: A. Each number appears twice before moving to the next multiple of 3: 9, 9, 12 — so the missing term is 9.

Sample Medium question 4

Find the missing number: 5, 11, 23, ?, 95

  1. 44
  2. 50
  3. 41
  4. 47
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Answer: D. Each term follows (previous × 2) + 1: 23 × 2 + 1 = 47 (check: 47 × 2 + 1 = 95).

Sample Medium question 5

Find the odd one out: 5, 11, 24, 47, 95, 191

  1. 24
  2. 47
  3. 11
  4. 95
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Answer: A. The correct pattern is (previous × 2) + 1: 5→11→23→47→95→191. The term 24 breaks this pattern; it should be 23 (11×2+1).

Sample Medium question 6

In this alternating series, find the next term: 10, 30, 13, 27, 16, 24, ?

  1. 19
  2. 20
  3. 18
  4. 21
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Answer: A. Two interleaved series: odd positions increase by 3 (10,13,16,19...) and even positions decrease by 3 (30,27,24...); the next term (7th, odd position) is 16 + 3 = 19.

Sample Hard question 7

Find the next number: 2, 5, 14, 41, ?

  1. 124
  2. 122
  3. 128
  4. 120
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Answer: B. Each term follows (previous × 3) - 1: 41 × 3 - 1 = 122.

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