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NIC UIIC AO Mathematical Operations Questions with Answers & Explanations

20 Mathematical Operations questions from the Reasoning Ability section of NIC UIIC AO, 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: 8 + 15 − 20 × 5 ÷ 4

  1. A118
  2. B120
  3. C122
  4. D119
  5. E125
Show answer
Answer: (B) 120 Replace the signs: 8 × 15 + 20 ÷ 5 − 4 = 120 + 4 − 4 = 120.
Question 2

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 8 − 54 × 9 ÷ 7

  1. A55
  2. B58
  3. C52
  4. D57
  5. E54
Show answer
Answer: (A) 55 Replace the signs: 7 × 8 + 54 ÷ 9 − 7 = 56 + 6 − 7 = 55.
Question 3

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 15 − 42 × 7 ÷ 8

  1. A113
  2. B120
  3. C117
  4. D118
  5. E121
Show answer
Answer: (D) 118 Replace the signs: 8 × 15 + 42 ÷ 7 − 8 = 120 + 6 − 8 = 118.
Question 4

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 10 − 16 × 8 ÷ 7

  1. A33
  2. B37
  3. C30
  4. D35
  5. E40
Show answer
Answer: (D) 35 Replace the signs: 4 × 10 + 16 ÷ 8 − 7 = 40 + 2 − 7 = 35.
Question 5

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 14 − 16 × 2 ÷ 6

  1. A63
  2. B58
  3. C53
  4. D61
  5. E60
Show answer
Answer: (B) 58 Replace the signs: 4 × 14 + 16 ÷ 2 − 6 = 56 + 8 − 6 = 58.
Question 6

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 15 − 6 × 2 ÷ 3

  1. A132
  2. B137
  3. C134
  4. D135
  5. E130
Show answer
Answer: (D) 135 Replace the signs: 9 × 15 + 6 ÷ 2 − 3 = 135 + 3 − 3 = 135.
Question 7

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

  1. A75
  2. B65
  3. C73
  4. D71
  5. E70
Show answer
Answer: (E) 70 Replace the signs: 9 × 8 + 24 ÷ 8 − 5 = 72 + 3 − 5 = 70.
Question 8

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 19 − 49 × 7 ÷ 5

  1. A75
  2. B77
  3. C79
  4. D78
  5. E73
Show answer
Answer: (D) 78 Replace the signs: 4 × 19 + 49 ÷ 7 − 5 = 76 + 7 − 5 = 78.
Question 9

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 16 − 6 × 2 ÷ 7

  1. A76
  2. B78
  3. C74
  4. D81
  5. E75
Show answer
Answer: (A) 76 Replace the signs: 5 × 16 + 6 ÷ 2 − 7 = 80 + 3 − 7 = 76.
Question 10

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 6 − 45 × 5 ÷ 9

  1. A26
  2. B23
  3. C24
  4. D22
  5. E29
Show answer
Answer: (C) 24 Replace the signs: 4 × 6 + 45 ÷ 5 − 9 = 24 + 9 − 9 = 24.

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Question 11

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 12 − 40 × 5 ÷ 4

  1. A63
  2. B61
  3. C62
  4. D69
  5. E64
Show answer
Answer: (E) 64 Replace the signs: 5 × 12 + 40 ÷ 5 − 4 = 60 + 8 − 4 = 64.
Question 12

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 19 − 35 × 7 ÷ 5

  1. A92
  2. B98
  3. C93
  4. D97
  5. E95
Show answer
Answer: (E) 95 Replace the signs: 5 × 19 + 35 ÷ 7 − 5 = 95 + 5 − 5 = 95.
Question 13

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 19 − 20 × 4 ÷ 1

  1. A132
  2. B137
  3. C138
  4. D134
  5. E142
Show answer
Answer: (B) 137 Replace the signs: 7 × 19 + 20 ÷ 4 − 1 = 133 + 5 − 1 = 137.
Question 14

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 7 − 56 × 8 ÷ 1

  1. A44
  2. B36
  3. C41
  4. D40
  5. E46
Show answer
Answer: (C) 41 Replace the signs: 5 × 7 + 56 ÷ 8 − 1 = 35 + 7 − 1 = 41.
Question 15

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 11 − 24 × 8 ÷ 3

  1. A101
  2. B94
  3. C98
  4. D104
  5. E99
Show answer
Answer: (E) 99 Replace the signs: 9 × 11 + 24 ÷ 8 − 3 = 99 + 3 − 3 = 99.
Question 16

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 9 + 15 − 72 × 9 ÷ 9

  1. A133
  2. B131
  3. C137
  4. D129
  5. E134
Show answer
Answer: (E) 134 Replace the signs: 9 × 15 + 72 ÷ 9 − 9 = 135 + 8 − 9 = 134.
Question 17

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 18 − 81 × 9 ÷ 5

  1. A149
  2. B148
  3. C145
  4. D153
  5. E147
Show answer
Answer: (B) 148 Replace the signs: 8 × 18 + 81 ÷ 9 − 5 = 144 + 9 − 5 = 148.
Question 18

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 16 − 18 × 3 ÷ 4

  1. A64
  2. B63
  3. C65
  4. D66
  5. E61
Show answer
Answer: (D) 66 Replace the signs: 4 × 16 + 18 ÷ 3 − 4 = 64 + 6 − 4 = 66.
Question 19

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 6 + 12 − 56 × 8 ÷ 2

  1. A78
  2. B80
  3. C75
  4. D77
  5. E72
Show answer
Answer: (D) 77 Replace the signs: 6 × 12 + 56 ÷ 8 − 2 = 72 + 7 − 2 = 77.
Question 20

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 7 − 45 × 5 ÷ 1

  1. A43
  2. B46
  3. C41
  4. D48
  5. E44
Show answer
Answer: (A) 43 Replace the signs: 5 × 7 + 45 ÷ 5 − 1 = 35 + 9 − 1 = 43.

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

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