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SSC GD Constable Percentages Questions
Practise percentages (quantitative aptitude) for the SSC General Duty Constable 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.What is 5% of 680?
Show answer & explanation
Answer: B — 34
5% of 680 = 5/100 × 680 = 34.
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Q2.What is 75% of 900?
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Answer: A — 675
75% of 900 = 75/100 × 900 = 675.
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Q3.The price of an item changes from ₹750 to ₹825. What is the percentage change?
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Answer: D — 10% increase
Change = 75 on a base of 750: 75/750 × 100 = 10% increase. Always divide by the ORIGINAL value.
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Q4.Two successive discounts of 30% and 10% are equivalent to a single discount of:
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Answer: D — 37%
Net discount = a + b − ab/100 = 30 + 10 − 30×10/100 = 37%.
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Q5.Two successive discounts of 20% and 10% are equivalent to a single discount of:
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Answer: B — 28%
Net discount = a + b − ab/100 = 20 + 10 − 20×10/100 = 28%.
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Q6.The price of an item changes from ₹350 to ₹385. What is the percentage change?
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Answer: A — 10% increase
Change = 35 on a base of 350: 35/350 × 100 = 10% increase. Always divide by the ORIGINAL value.
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Q7.What is 5% of 780?
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Answer: C — 39
5% of 780 = 5/100 × 780 = 39.
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Q8.What is 18% of 320?
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Answer: D — 57.6
18% of 320 = 18/100 × 320 = 57.6.
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Q9.The price of an item changes from ₹1,000 to ₹1,150. What is the percentage change?
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Answer: D — 15% increase
Change = 150 on a base of 1000: 150/1000 × 100 = 15% increase. Always divide by the ORIGINAL value.
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Q10.Two successive discounts of 15% and 5% are equivalent to a single discount of:
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Answer: B — 19.25%
Net discount = a + b − ab/100 = 15 + 5 − 15×5/100 = 19.25%.
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 GD Constable
SSC General Duty Constable Examination — conducted by Staff Selection Commission (SSC). Recruits constables for the Central Armed Police Forces, SSF and Assam Rifles.
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 GD Constable practice topics
| Topic | Section | Question source |
|---|---|---|
| Number System & Simplification | Quantitative aptitude | Calculated (new numbers every set) |
| Percentages | Quantitative aptitude | Calculated (new numbers every set) |
| Logical Reasoning | Reasoning | Calculated (new numbers every set) |
| Indian Polity, History & Geography | General awareness | Question bank |
| English Grammar | English | Question bank |