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DRDO CEPTAM Simplification & Approximation Questions with Answers & Explanations

17 Simplification & Approximation questions from the Quantitative Ability section of DRDO CEPTAM, 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

Simplify: 85 + 9 × 5 − 90 ÷ 9

  1. A116
  2. B140
  3. C120
  4. D460
Show answer
Answer: (C) 120 By BODMAS: 9 × 5 = 45, 90 ÷ 9 = 10; 85 + 45 − 10 = 120.
Question 2

Simplify: 83 + 3 × 3 − 24 ÷ 4

  1. A96
  2. B252
  3. C82
  4. D86
Show answer
Answer: (D) 86 By BODMAS: 3 × 3 = 9, 24 ÷ 4 = 6; 83 + 9 − 6 = 86.
Question 3

Simplify: 13 + 13 × 2 − 36 ÷ 4

  1. A40
  2. B43
  3. C48
  4. D30
Show answer
Answer: (D) 30 By BODMAS: 13 × 2 = 26, 36 ÷ 4 = 9; 13 + 26 − 9 = 30.
Question 4

Simplify: 98 + 15 × 9 − 70 ÷ 7

  1. A219
  2. B223
  3. C243
  4. D233
Show answer
Answer: (B) 223 By BODMAS: 15 × 9 = 135, 70 ÷ 7 = 10; 98 + 135 − 10 = 223.
Question 5

Simplify: 64 + 8 × 9 − 72 ÷ 6

  1. A124
  2. B148
  3. C636
  4. D134
Show answer
Answer: (A) 124 By BODMAS: 8 × 9 = 72, 72 ÷ 6 = 12; 64 + 72 − 12 = 124.
Question 6

Simplify: 99 + 12 × 3 − 12 ÷ 6

  1. A133
  2. B331
  3. C137
  4. D129
Show answer
Answer: (A) 133 By BODMAS: 12 × 3 = 36, 12 ÷ 6 = 2; 99 + 36 − 2 = 133.
Question 7

Simplify: 30 + 14 × 4 − 96 ÷ 8

  1. A84
  2. B164
  3. C74
  4. D70
Show answer
Answer: (C) 74 By BODMAS: 14 × 4 = 56, 96 ÷ 8 = 12; 30 + 56 − 12 = 74.
Question 8

Simplify: 85 + 8 × 7 − 12 ÷ 3

  1. A647
  2. B145
  3. C137
  4. D133
Show answer
Answer: (C) 137 By BODMAS: 8 × 7 = 56, 12 ÷ 3 = 4; 85 + 56 − 4 = 137.
Question 9

Simplify: 96 + 13 × 6 − 56 ÷ 7

  1. A176
  2. B162
  3. C182
  4. D166
Show answer
Answer: (D) 166 By BODMAS: 13 × 6 = 78, 56 ÷ 7 = 8; 96 + 78 − 8 = 166.
Question 10

Simplify: 63 + 5 × 8 − 12 ÷ 6

  1. A101
  2. B97
  3. C105
  4. D111
Show answer
Answer: (A) 101 By BODMAS: 5 × 8 = 40, 12 ÷ 6 = 2; 63 + 40 − 2 = 101.

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Question 11

Simplify: 57 + 10 × 2 − 99 ÷ 9

  1. A123
  2. B76
  3. C66
  4. D62
Show answer
Answer: (C) 66 By BODMAS: 10 × 2 = 20, 99 ÷ 9 = 11; 57 + 20 − 11 = 66.
Question 12

Simplify: 55 + 9 × 3 − 18 ÷ 2

  1. A83
  2. B73
  3. C91
  4. D183
Show answer
Answer: (B) 73 By BODMAS: 9 × 3 = 27, 18 ÷ 2 = 9; 55 + 27 − 9 = 73.
Question 13

Simplify: 74 + 6 × 8 − 16 ÷ 8

  1. A638
  2. B120
  3. C116
  4. D124
Show answer
Answer: (B) 120 By BODMAS: 6 × 8 = 48, 16 ÷ 8 = 2; 74 + 48 − 2 = 120.
Question 14

Simplify: 96 + 10 × 5 − 24 ÷ 4

  1. A524
  2. B152
  3. C140
  4. D150
Show answer
Answer: (C) 140 By BODMAS: 10 × 5 = 50, 24 ÷ 4 = 6; 96 + 50 − 6 = 140.
Question 15

Simplify: 96 + 12 × 2 − 72 ÷ 6

  1. A104
  2. B132
  3. C108
  4. D204
Show answer
Answer: (C) 108 By BODMAS: 12 × 2 = 24, 72 ÷ 6 = 12; 96 + 24 − 12 = 108.
Question 16

Simplify: 76 + 5 × 2 − 20 ÷ 2

  1. A76
  2. B86
  3. C152
  4. D96
Show answer
Answer: (A) 76 By BODMAS: 5 × 2 = 10, 20 ÷ 2 = 10; 76 + 10 − 10 = 76.
Question 17

Simplify: 91 + 10 × 6 − 54 ÷ 6

  1. A152
  2. B142
  3. C597
  4. D160
Show answer
Answer: (B) 142 By BODMAS: 10 × 6 = 60, 54 ÷ 6 = 9; 91 + 60 − 9 = 142.

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

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