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SSC CPO Mathematical Operations Questions with Answers & Explanations

20 Mathematical Operations questions from the General Intelligence & Reasoning section of SSC CPO, 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: 3 + 13 − 8 × 2 ÷ 1

  1. A37
  2. B44
  3. C45
  4. D42
Show answer
Answer: (D) 42 Replace the signs: 3 × 13 + 8 ÷ 2 − 1 = 39 + 4 − 1 = 42.
Question 2

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 2 + 3 − 12 × 6 ÷ 6

  1. A1
  2. B7
  3. C2
  4. D5
Show answer
Answer: (C) 2 Replace the signs: 2 × 3 + 12 ÷ 6 − 6 = 6 + 2 − 6 = 2.
Question 3

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 20 − 81 × 9 ÷ 7

  1. A82
  2. B79
  3. C84
  4. D83
Show answer
Answer: (A) 82 Replace the signs: 4 × 20 + 81 ÷ 9 − 7 = 80 + 9 − 7 = 82.
Question 4

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 12 − 18 × 2 ÷ 6

  1. A99
  2. B104
  3. C101
  4. D94
Show answer
Answer: (A) 99 Replace the signs: 8 × 12 + 18 ÷ 2 − 6 = 96 + 9 − 6 = 99.
Question 5

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 20 − 24 × 4 ÷ 8

  1. A98
  2. B99
  3. C97
  4. D101
Show answer
Answer: (A) 98 Replace the signs: 5 × 20 + 24 ÷ 4 − 8 = 100 + 6 − 8 = 98.
Question 6

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 10 − 24 × 4 ÷ 1

  1. A43
  2. B48
  3. C50
  4. D45
Show answer
Answer: (D) 45 Replace the signs: 4 × 10 + 24 ÷ 4 − 1 = 40 + 6 − 1 = 45.
Question 7

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 12 − 28 × 4 ÷ 7

  1. A93
  2. B96
  3. C99
  4. D95
Show answer
Answer: (B) 96 Replace the signs: 8 × 12 + 28 ÷ 4 − 7 = 96 + 7 − 7 = 96.
Question 8

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 3 + 15 − 32 × 4 ÷ 1

  1. A50
  2. B55
  3. C51
  4. D52
Show answer
Answer: (D) 52 Replace the signs: 3 × 15 + 32 ÷ 4 − 1 = 45 + 8 − 1 = 52.
Question 9

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 6 + 6 − 63 × 7 ÷ 9

  1. A35
  2. B39
  3. C36
  4. D41
Show answer
Answer: (C) 36 Replace the signs: 6 × 6 + 63 ÷ 7 − 9 = 36 + 9 − 9 = 36.
Question 10

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 2 − 32 × 8 ÷ 3

  1. A17
  2. B10
  3. C12
  4. D15
Show answer
Answer: (D) 15 Replace the signs: 7 × 2 + 32 ÷ 8 − 3 = 14 + 4 − 3 = 15.

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Question 11

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 11 − 18 × 3 ÷ 9

  1. A95
  2. B96
  3. C91
  4. D93
Show answer
Answer: (B) 96 Replace the signs: 9 × 11 + 18 ÷ 3 − 9 = 99 + 6 − 9 = 96.
Question 12

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 16 − 8 × 4 ÷ 6

  1. A65
  2. B60
  3. C61
  4. D59
Show answer
Answer: (B) 60 Replace the signs: 4 × 16 + 8 ÷ 4 − 6 = 64 + 2 − 6 = 60.
Question 13

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 9 − 32 × 8 ÷ 8

  1. A46
  2. B40
  3. C38
  4. D41
Show answer
Answer: (D) 41 Replace the signs: 5 × 9 + 32 ÷ 8 − 8 = 45 + 4 − 8 = 41.
Question 14

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 20 − 42 × 6 ÷ 1

  1. A167
  2. B168
  3. C166
  4. D164
Show answer
Answer: (C) 166 Replace the signs: 8 × 20 + 42 ÷ 6 − 1 = 160 + 7 − 1 = 166.
Question 15

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 13 − 63 × 7 ÷ 4

  1. A117
  2. B122
  3. C123
  4. D119
Show answer
Answer: (B) 122 Replace the signs: 9 × 13 + 63 ÷ 7 − 4 = 117 + 9 − 4 = 122.
Question 16

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 8 − 18 × 2 ÷ 3

  1. A40
  2. B37
  3. C38
  4. D41
Show answer
Answer: (C) 38 Replace the signs: 4 × 8 + 18 ÷ 2 − 3 = 32 + 9 − 3 = 38.
Question 17

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 4 − 15 × 3 ÷ 2

  1. A36
  2. B33
  3. C35
  4. D40
Show answer
Answer: (C) 35 Replace the signs: 8 × 4 + 15 ÷ 3 − 2 = 32 + 5 − 2 = 35.
Question 18

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 9 − 56 × 8 ÷ 5

  1. A82
  2. B88
  3. C83
  4. D81
Show answer
Answer: (C) 83 Replace the signs: 9 × 9 + 56 ÷ 8 − 5 = 81 + 7 − 5 = 83.
Question 19

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 19 − 64 × 8 ÷ 1

  1. A179
  2. B178
  3. C175
  4. D173
Show answer
Answer: (B) 178 Replace the signs: 9 × 19 + 64 ÷ 8 − 1 = 171 + 8 − 1 = 178.
Question 20

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 6 + 18 − 35 × 5 ÷ 1

  1. A117
  2. B114
  3. C109
  4. D111
Show answer
Answer: (B) 114 Replace the signs: 6 × 18 + 35 ÷ 5 − 1 = 108 + 7 − 1 = 114.

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

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