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RRB ALP Mathematical Operations Questions with Answers & Explanations

18 Mathematical Operations questions from the Mental Ability & Reasoning section of RRB ALP, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.

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Question 1

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 6 + 13 − 63 × 9 ÷ 6

  1. A82
  2. B78
  3. C79
  4. D74
Show answer
Answer: (C) 79 Replace the signs: 6 × 13 + 63 ÷ 9 − 6 = 78 + 7 − 6 = 79.
Question 2

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 4 − 35 × 5 ÷ 6

  1. A34
  2. B37
  3. C42
  4. D40
Show answer
Answer: (B) 37 Replace the signs: 9 × 4 + 35 ÷ 5 − 6 = 36 + 7 − 6 = 37.
Question 3

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 3 − 18 × 6 ÷ 5

  1. A23
  2. B30
  3. C27
  4. D25
Show answer
Answer: (D) 25 Replace the signs: 9 × 3 + 18 ÷ 6 − 5 = 27 + 3 − 5 = 25.
Question 4

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 3 + 10 − 27 × 9 ÷ 2

  1. A30
  2. B31
  3. C34
  4. D26
Show answer
Answer: (B) 31 Replace the signs: 3 × 10 + 27 ÷ 9 − 2 = 30 + 3 − 2 = 31.
Question 5

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 17 − 10 × 5 ÷ 5

  1. A65
  2. B67
  3. C60
  4. D63
Show answer
Answer: (A) 65 Replace the signs: 4 × 17 + 10 ÷ 5 − 5 = 68 + 2 − 5 = 65.
Question 6

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 9 − 56 × 7 ÷ 6

  1. A77
  2. B76
  3. C72
  4. D74
Show answer
Answer: (D) 74 Replace the signs: 8 × 9 + 56 ÷ 7 − 6 = 72 + 8 − 6 = 74.
Question 7

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 9 − 32 × 8 ÷ 3

  1. A80
  2. B82
  3. C85
  4. D77
Show answer
Answer: (B) 82 Replace the signs: 9 × 9 + 32 ÷ 8 − 3 = 81 + 4 − 3 = 82.
Question 8

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 2 − 54 × 6 ÷ 6

  1. A21
  2. B24
  3. C26
  4. D23
Show answer
Answer: (A) 21 Replace the signs: 9 × 2 + 54 ÷ 6 − 6 = 18 + 9 − 6 = 21.
Question 9

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 6 + 2 − 4 × 2 ÷ 8

  1. A4
  2. B11
  3. C6
  4. D1
Show answer
Answer: (C) 6 Replace the signs: 6 × 2 + 4 ÷ 2 − 8 = 12 + 2 − 8 = 6.
Question 10

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 2 + 19 − 27 × 9 ÷ 9

  1. A30
  2. B33
  3. C32
  4. D35
Show answer
Answer: (C) 32 Replace the signs: 2 × 19 + 27 ÷ 9 − 9 = 38 + 3 − 9 = 32.

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Question 11

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 3 − 20 × 5 ÷ 3

  1. A27
  2. B28
  3. C23
  4. D30
Show answer
Answer: (B) 28 Replace the signs: 9 × 3 + 20 ÷ 5 − 3 = 27 + 4 − 3 = 28.
Question 12

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 2 − 48 × 8 ÷ 9

  1. A14
  2. B16
  3. C11
  4. D9
Show answer
Answer: (C) 11 Replace the signs: 7 × 2 + 48 ÷ 8 − 9 = 14 + 6 − 9 = 11.
Question 13

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 6 − 6 × 2 ÷ 7

  1. A40
  2. B36
  3. C41
  4. D38
Show answer
Answer: (D) 38 Replace the signs: 7 × 6 + 6 ÷ 2 − 7 = 42 + 3 − 7 = 38.
Question 14

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 12 − 24 × 6 ÷ 1

  1. A66
  2. B58
  3. C68
  4. D63
Show answer
Answer: (D) 63 Replace the signs: 5 × 12 + 24 ÷ 6 − 1 = 60 + 4 − 1 = 63.
Question 15

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 10 − 25 × 5 ÷ 7

  1. A48
  2. B53
  3. C51
  4. D43
Show answer
Answer: (A) 48 Replace the signs: 5 × 10 + 25 ÷ 5 − 7 = 50 + 5 − 7 = 48.
Question 16

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 6 + 16 − 24 × 6 ÷ 2

  1. A93
  2. B103
  3. C98
  4. D97
Show answer
Answer: (C) 98 Replace the signs: 6 × 16 + 24 ÷ 6 − 2 = 96 + 4 − 2 = 98.
Question 17

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 11 − 56 × 7 ÷ 6

  1. A81
  2. B78
  3. C82
  4. D79
Show answer
Answer: (D) 79 Replace the signs: 7 × 11 + 56 ÷ 7 − 6 = 77 + 8 − 6 = 79.
Question 18

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 20 − 18 × 3 ÷ 6

  1. A183
  2. B178
  3. C185
  4. D180
Show answer
Answer: (D) 180 Replace the signs: 9 × 20 + 18 ÷ 3 − 6 = 180 + 6 − 6 = 180.

These are RankerClub practice questions written in the RRB ALP pattern. They are not official SSC/IBPS/RRB papers.

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