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SSC CPO Percentages Questions
Practise percentages (quantitative aptitude) for the SSC Sub-Inspector in Delhi Police & CAPFs Examination: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Percentages practice
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Q1.Two successive discounts of 25% and 10% are equivalent to a single discount of:
Show answer & explanation
Answer: B — 32.5%
Net discount = a + b − ab/100 = 25 + 10 − 25×10/100 = 32.5%.
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Q2.What is 40% of 720?
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Answer: A — 288
40% of 720 = 40/100 × 720 = 288.
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Q3.Two successive discounts of 30% and 20% are equivalent to a single discount of:
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Answer: D — 44%
Net discount = a + b − ab/100 = 30 + 20 − 30×20/100 = 44%.
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Q4.Two successive discounts of 10% and 10% are equivalent to a single discount of:
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Answer: C — 19%
Net discount = a + b − ab/100 = 10 + 10 − 10×10/100 = 19%.
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Q5.Two successive discounts of 25% and 20% are equivalent to a single discount of:
Show answer & explanation
Answer: A — 40%
Net discount = a + b − ab/100 = 25 + 20 − 25×20/100 = 40%.
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Q6.Two successive discounts of 25% and 15% are equivalent to a single discount of:
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Answer: A — 36.25%
Net discount = a + b − ab/100 = 25 + 15 − 25×15/100 = 36.25%.
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Q7.What is 60% of 580?
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Answer: A — 348
60% of 580 = 60/100 × 580 = 348.
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Q8.The price of an item changes from ₹425 to ₹255. What is the percentage change?
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Answer: A — 40% decrease
Change = -170 on a base of 425: -170/425 × 100 = 40% decrease. Always divide by the ORIGINAL value.
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Q9.The price of an item changes from ₹925 to ₹1,110. What is the percentage change?
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Answer: A — 20% increase
Change = 185 on a base of 925: 185/925 × 100 = 20% increase. Always divide by the ORIGINAL value.
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Q10.Two successive discounts of 25% and 5% are equivalent to a single discount of:
Show answer & explanation
Answer: D — 28.75%
Net discount = a + b − ab/100 = 25 + 5 − 25×5/100 = 28.75%.
How to approach percentages questions
Convert percentages to fractions you know by heart (12.5% = 1/8, 37.5% = 3/8, 16.67% = 1/6) and always divide a change by the ORIGINAL value. Two successive changes of a% and b% combine to a + b + ab/100.
About SSC CPO
SSC Sub-Inspector in Delhi Police & CAPFs Examination — conducted by Staff Selection Commission (SSC). Recruits Sub-Inspectors for Delhi Police and the Central Armed Police Forces.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
SSC CPO practice topics
| Topic | Section | Question source |
|---|---|---|
| Percentages | Quantitative aptitude | Calculated (new numbers every set) |
| Speed, Distance, Trains & Boats | Quantitative aptitude | Calculated (new numbers every set) |
| Logical Reasoning | Reasoning | Calculated (new numbers every set) |
| English Grammar | English | Question bank |
| Vocabulary & Idioms | English | Question bank |
| Indian Polity, History & Geography | General awareness | Question bank |