🎯 RankerClub is 100% Free β€” 97 full-length mock tests with an instant all-India rank. Register Free β†’
RankerClub

CDS Percentage Questions with Answers & Explanations

19 Percentage questions from the Elementary Mathematics section of CDS, 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.

CDS full mocks
Question 1

The price of an item is first increased by 10% and then decreased by 10%. What is the net change in price?

  1. A3% decrease
  2. B1% increase
  3. C20% increase
  4. D1% decrease
Show answer
Answer: (D) 1% decrease Net change = 10 βˆ’ 10 βˆ’ (10 Γ— 10)/100 = -1%.
Question 2

What is 60% of 340?

  1. A206
  2. B204
  3. C187
  4. D221
Show answer
Answer: (B) 204 60% of 340 = 60/100 Γ— 340 = 204.
Question 3

What is 40% of 560?

  1. A222
  2. B226
  3. C224
  4. D219
Show answer
Answer: (C) 224 40% of 560 = 40/100 Γ— 560 = 224.
Question 4

The price of an item is first increased by 25% and then decreased by 20%. What is the net change in price?

  1. ANo change
  2. B2% increase
  3. C5% increase
  4. D2% decrease
Show answer
Answer: (A) No change Net change = 25 βˆ’ 20 βˆ’ (25 Γ— 20)/100 = 0%.
Question 5

What is 12% of 940?

  1. A114.8
  2. B65.8
  3. C122.8
  4. D112.8
Show answer
Answer: (D) 112.8 12% of 940 = 12/100 Γ— 940 = 112.8.
Question 6

The price of an item is first increased by 20% and then decreased by 10%. What is the net change in price?

  1. A6% increase
  2. B10% increase
  3. C8% increase
  4. D8% decrease
Show answer
Answer: (C) 8% increase Net change = 20 βˆ’ 10 βˆ’ (20 Γ— 10)/100 = 8%.
Question 7

What is 30% of 1000?

  1. A310
  2. B250
  3. C302
  4. D300
Show answer
Answer: (D) 300 30% of 1000 = 30/100 Γ— 1000 = 300.
Question 8

The price of an item is first increased by 10% and then decreased by 20%. What is the net change in price?

  1. A12% increase
  2. B12% decrease
  3. C10% decrease
  4. D14% decrease
Show answer
Answer: (B) 12% decrease Net change = 10 βˆ’ 20 βˆ’ (10 Γ— 20)/100 = -12%.
Question 9

What is 15% of 620?

  1. A93
  2. B103
  3. C62
  4. D91
Show answer
Answer: (A) 93 15% of 620 = 15/100 Γ— 620 = 93.
Question 10

The price of an item is first increased by 30% and then decreased by 20%. What is the net change in price?

  1. A4% decrease
  2. B50% increase
  3. C4% increase
  4. D6% increase
Show answer
Answer: (C) 4% increase Net change = 30 βˆ’ 20 βˆ’ (30 Γ— 20)/100 = 4%.
Question 11

What is 60% of 360?

  1. A226
  2. B206
  3. C216
  4. D221
Show answer
Answer: (C) 216 60% of 360 = 60/100 Γ— 360 = 216.
Question 12

The price of an item is first increased by 20% and then decreased by 25%. What is the net change in price?

  1. A10% increase
  2. B10% decrease
  3. C5% decrease
  4. D12% decrease
Show answer
Answer: (B) 10% decrease Net change = 20 βˆ’ 25 βˆ’ (20 Γ— 25)/100 = -10%.
Question 13

What is 15% of 840?

  1. A124
  2. B136
  3. C126
  4. D84
Show answer
Answer: (C) 126 15% of 840 = 15/100 Γ— 840 = 126.
Question 14

What is 15% of 1020?

  1. A158
  2. B155
  3. C153
  4. D143
Show answer
Answer: (C) 153 15% of 1020 = 15/100 Γ— 1020 = 153.
Question 15

The price of an item is first increased by 40% and then decreased by 25%. What is the net change in price?

  1. A5% increase
  2. B65% increase
  3. C3% increase
  4. D7% increase
Show answer
Answer: (A) 5% increase Net change = 40 βˆ’ 25 βˆ’ (40 Γ— 25)/100 = 5%.
Question 16

What is 45% of 1180?

  1. A536
  2. B472
  3. C533
  4. D531
Show answer
Answer: (D) 531 45% of 1180 = 45/100 Γ— 1180 = 531.
Question 17

The price of an item is first increased by 30% and then decreased by 20%. What is the net change in price?

  1. A4% increase
  2. B10% increase
  3. C2% increase
  4. D6% increase
Show answer
Answer: (A) 4% increase Net change = 30 βˆ’ 20 βˆ’ (30 Γ— 20)/100 = 4%.
Question 18

What is 15% of 760?

  1. A109
  2. B104
  3. C116
  4. D114
Show answer
Answer: (D) 114 15% of 760 = 15/100 Γ— 760 = 114.
Question 19

The price of an item is first increased by 40% and then decreased by 25%. What is the net change in price?

  1. A3% increase
  2. B65% increase
  3. C5% decrease
  4. D5% increase
Show answer
Answer: (D) 5% increase Net change = 40 βˆ’ 25 βˆ’ (40 Γ— 25)/100 = 5%.

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

More Elementary Mathematics topics

All CDS topics β†’