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SBI PO Mathematical Operations Questions with Answers & Explanations

20 Mathematical Operations questions from the Reasoning Ability section of SBI PO, 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 + 20 − 35 × 5 ÷ 1

  1. A71
  2. B61
  3. C66
  4. D69
  5. E68
Show answer
Answer: (C) 66 Replace the signs: 3 × 20 + 35 ÷ 5 − 1 = 60 + 7 − 1 = 66.
Question 2

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 16 − 15 × 5 ÷ 7

  1. A59
  2. B60
  3. C55
  4. D58
  5. E62
Show answer
Answer: (B) 60 Replace the signs: 4 × 16 + 15 ÷ 5 − 7 = 64 + 3 − 7 = 60.
Question 3

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 9 − 6 × 2 ÷ 9

  1. A39
  2. B37
  3. C34
  4. D40
  5. E38
Show answer
Answer: (A) 39 Replace the signs: 5 × 9 + 6 ÷ 2 − 9 = 45 + 3 − 9 = 39.
Question 4

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

  1. A22
  2. B19
  3. C20
  4. D17
  5. E18
Show answer
Answer: (D) 17 Replace the signs: 4 × 4 + 24 ÷ 4 − 5 = 16 + 6 − 5 = 17.
Question 5

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 11 − 35 × 5 ÷ 4

  1. A60
  2. B59
  3. C58
  4. D56
  5. E57
Show answer
Answer: (C) 58 Replace the signs: 5 × 11 + 35 ÷ 5 − 4 = 55 + 7 − 4 = 58.
Question 6

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 16 − 28 × 7 ÷ 3

  1. A126
  2. B132
  3. C134
  4. D129
  5. E131
Show answer
Answer: (D) 129 Replace the signs: 8 × 16 + 28 ÷ 7 − 3 = 128 + 4 − 3 = 129.
Question 7

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 2 − 12 × 2 ÷ 3

  1. A19
  2. B16
  3. C17
  4. D18
  5. E21
Show answer
Answer: (A) 19 Replace the signs: 8 × 2 + 12 ÷ 2 − 3 = 16 + 6 − 3 = 19.
Question 8

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 2 + 15 − 18 × 3 ÷ 8

  1. A26
  2. B28
  3. C23
  4. D31
  5. E33
Show answer
Answer: (B) 28 Replace the signs: 2 × 15 + 18 ÷ 3 − 8 = 30 + 6 − 8 = 28.
Question 9

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 5 − 24 × 3 ÷ 9

  1. A37
  2. B39
  3. C42
  4. D36
  5. E34
Show answer
Answer: (B) 39 Replace the signs: 8 × 5 + 24 ÷ 3 − 9 = 40 + 8 − 9 = 39.
Question 10

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 12 − 16 × 2 ÷ 1

  1. A50
  2. B53
  3. C55
  4. D56
  5. E52
Show answer
Answer: (C) 55 Replace the signs: 4 × 12 + 16 ÷ 2 − 1 = 48 + 8 − 1 = 55.

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Question 11

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 2 + 2 − 10 × 5 ÷ 5

  1. A3
  2. B6
  3. C2
  4. D1
  5. E4
Show answer
Answer: (D) 1 Replace the signs: 2 × 2 + 10 ÷ 5 − 5 = 4 + 2 − 5 = 1.
Question 12

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 2 + 14 − 16 × 4 ÷ 5

  1. A28
  2. B32
  3. C27
  4. D26
  5. E24
Show answer
Answer: (C) 27 Replace the signs: 2 × 14 + 16 ÷ 4 − 5 = 28 + 4 − 5 = 27.
Question 13

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 11 − 54 × 9 ÷ 3

  1. A42
  2. B47
  3. C50
  4. D52
  5. E48
Show answer
Answer: (B) 47 Replace the signs: 4 × 11 + 54 ÷ 9 − 3 = 44 + 6 − 3 = 47.
Question 14

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 20 − 36 × 9 ÷ 1

  1. A82
  2. B85
  3. C86
  4. D83
  5. E80
Show answer
Answer: (D) 83 Replace the signs: 4 × 20 + 36 ÷ 9 − 1 = 80 + 4 − 1 = 83.
Question 15

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 15 − 6 × 2 ÷ 3

  1. A100
  2. B103
  3. C105
  4. D104
  5. E110
Show answer
Answer: (C) 105 Replace the signs: 7 × 15 + 6 ÷ 2 − 3 = 105 + 3 − 3 = 105.
Question 16

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 2 − 16 × 4 ÷ 2

  1. A10
  2. B12
  3. C11
  4. D5
  5. E13
Show answer
Answer: (A) 10 Replace the signs: 4 × 2 + 16 ÷ 4 − 2 = 8 + 4 − 2 = 10.
Question 17

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

  1. A62
  2. B58
  3. C61
  4. D60
  5. E56
Show answer
Answer: (C) 61 Replace the signs: 9 × 7 + 20 ÷ 4 − 7 = 63 + 5 − 7 = 61.
Question 18

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 8 − 12 × 2 ÷ 6

  1. A31
  2. B33
  3. C34
  4. D32
  5. E35
Show answer
Answer: (D) 32 Replace the signs: 4 × 8 + 12 ÷ 2 − 6 = 32 + 6 − 6 = 32.
Question 19

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 12 − 54 × 9 ÷ 3

  1. A84
  2. B85
  3. C88
  4. D87
  5. E89
Show answer
Answer: (D) 87 Replace the signs: 7 × 12 + 54 ÷ 9 − 3 = 84 + 6 − 3 = 87.
Question 20

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 9 − 72 × 9 ÷ 2

  1. A82
  2. B87
  3. C89
  4. D86
  5. E88
Show answer
Answer: (B) 87 Replace the signs: 9 × 9 + 72 ÷ 9 − 2 = 81 + 8 − 2 = 87.

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

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