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DSSSB PRT/TGT Mathematical Operations Questions with Answers & Explanations

18 Mathematical Operations questions from the Reasoning Ability section of DSSSB PRT/TGT, 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 + 17 − 54 × 6 ÷ 3

  1. A54
  2. B57
  3. C52
  4. D62
Show answer
Answer: (B) 57 Replace the signs: 3 × 17 + 54 ÷ 6 − 3 = 51 + 9 − 3 = 57.
Question 2

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 2 + 11 − 32 × 8 ÷ 1

  1. A25
  2. B22
  3. C26
  4. D28
Show answer
Answer: (A) 25 Replace the signs: 2 × 11 + 32 ÷ 8 − 1 = 22 + 4 − 1 = 25.
Question 3

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

  1. A19
  2. B24
  3. C22
  4. D23
Show answer
Answer: (B) 24 Replace the signs: 5 × 5 + 32 ÷ 8 − 5 = 25 + 4 − 5 = 24.
Question 4

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 19 − 54 × 9 ÷ 1

  1. A141
  2. B139
  3. C133
  4. D138
Show answer
Answer: (D) 138 Replace the signs: 7 × 19 + 54 ÷ 9 − 1 = 133 + 6 − 1 = 138.
Question 5

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 3 − 30 × 5 ÷ 5

  1. A16
  2. B14
  3. C17
  4. D11
Show answer
Answer: (A) 16 Replace the signs: 5 × 3 + 30 ÷ 5 − 5 = 15 + 6 − 5 = 16.
Question 6

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 8 − 49 × 7 ÷ 6

  1. A36
  2. B33
  3. C30
  4. D31
Show answer
Answer: (B) 33 Replace the signs: 4 × 8 + 49 ÷ 7 − 6 = 32 + 7 − 6 = 33.
Question 7

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

  1. A18
  2. B20
  3. C21
  4. D22
Show answer
Answer: (B) 20 Replace the signs: 2 × 8 + 12 ÷ 2 − 2 = 16 + 6 − 2 = 20.
Question 8

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 8 + 14 − 42 × 7 ÷ 5

  1. A111
  2. B118
  3. C108
  4. D113
Show answer
Answer: (D) 113 Replace the signs: 8 × 14 + 42 ÷ 7 − 5 = 112 + 6 − 5 = 113.
Question 9

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 15 − 12 × 6 ÷ 9

  1. A95
  2. B98
  3. C96
  4. D100
Show answer
Answer: (B) 98 Replace the signs: 7 × 15 + 12 ÷ 6 − 9 = 105 + 2 − 9 = 98.
Question 10

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 18 − 14 × 2 ÷ 4

  1. A80
  2. B75
  3. C78
  4. D77
Show answer
Answer: (B) 75 Replace the signs: 4 × 18 + 14 ÷ 2 − 4 = 72 + 7 − 4 = 75.

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Question 11

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 3 − 45 × 9 ÷ 6

  1. A9
  2. B12
  3. C11
  4. D10
Show answer
Answer: (C) 11 Replace the signs: 4 × 3 + 45 ÷ 9 − 6 = 12 + 5 − 6 = 11.
Question 12

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 3 + 10 − 56 × 8 ÷ 4

  1. A36
  2. B28
  3. C33
  4. D32
Show answer
Answer: (C) 33 Replace the signs: 3 × 10 + 56 ÷ 8 − 4 = 30 + 7 − 4 = 33.
Question 13

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 4 + 15 − 30 × 6 ÷ 5

  1. A62
  2. B60
  3. C63
  4. D57
Show answer
Answer: (B) 60 Replace the signs: 4 × 15 + 30 ÷ 6 − 5 = 60 + 5 − 5 = 60.
Question 14

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 3 + 19 − 16 × 4 ÷ 8

  1. A50
  2. B54
  3. C52
  4. D53
Show answer
Answer: (D) 53 Replace the signs: 3 × 19 + 16 ÷ 4 − 8 = 57 + 4 − 8 = 53.
Question 15

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 4 − 16 × 4 ÷ 8

  1. A19
  2. B21
  3. C16
  4. D15
Show answer
Answer: (C) 16 Replace the signs: 5 × 4 + 16 ÷ 4 − 8 = 20 + 4 − 8 = 16.
Question 16

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

  1. A22
  2. B24
  3. C16
  4. D21
Show answer
Answer: (D) 21 Replace the signs: 8 × 3 + 8 ÷ 2 − 7 = 24 + 4 − 7 = 21.
Question 17

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 5 + 16 − 12 × 6 ÷ 1

  1. A80
  2. B86
  3. C76
  4. D81
Show answer
Answer: (D) 81 Replace the signs: 5 × 16 + 12 ÷ 6 − 1 = 80 + 2 − 1 = 81.
Question 18

If '+' means '×', '−' means '+', '×' means '÷' and '÷' means '−', what is the value of: 7 + 8 − 48 × 8 ÷ 3

  1. A64
  2. B60
  3. C54
  4. D59
Show answer
Answer: (D) 59 Replace the signs: 7 × 8 + 48 ÷ 8 − 3 = 56 + 6 − 3 = 59.

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

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