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JKSSB Assistant Training Officer (Handicrafts & Handlooms) · Reasoning · 44 practice questions with answers and explanations: 22 Easy, 21 Medium, 1 Hard.

Sample questions

Sample Easy question 1

Find the next number: 1, 4, 9, 16, ?

  1. 20
  2. 22
  3. 28
  4. 25
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Answer: D. These are squares of 1,2,3,4; next is 5² = 25.

Sample Easy question 2

Find the next letter: A, C, E, G, ?

  1. I
  2. K
  3. J
  4. H
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Answer: A. Each letter skips one, so after G comes I.

Sample Easy question 3

Find the next number: 5, 10, 20, 40, ?

  1. 85
  2. 75
  3. 80
  4. 70
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Answer: C. Each term doubles the previous one, so 40 × 2 = 80.

Sample Medium question 4

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 Medium question 5

Find the next number: 1, 4, 9, 18, 35, ?

  1. 64
  2. 60
  3. 70
  4. 68
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Answer: D. The differences between terms are 3, 5, 9, 17 — each difference is (previous difference × 2) − 1. The next difference is 17×2−1 = 33, so the next term is 35 + 33 = 68.

Sample Medium question 6

Find the next pair's missing value: (3, 10), (4, 17), (5, 26), (6, ?)

  1. 37
  2. 39
  3. 35
  4. 41
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Answer: A. Each pair follows (n, n² + 1): 6² + 1 = 37.

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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