Percentage - Question Bank

1. If a number is increased by 20% and then decreased by 20%, what is the final percentage change?
A) 4% increase
B) 4% decrease
C) No change
D) 2% decrease
2. In a test, a student scored 36 marks out of 50. What is the percentage of marks scored?
A) 68%
B) 70%
C) 72%
D) 74%
3. What is 3/4 as a percentage?
A) 50%
B) 60%
C) 75%
D) 80%
4. If the price of petrol increases by 10%, by what percentage should a person reduce their consumption to spend the same amount of money?
A) 9.09%
B) 10%
C) 11.11%
D) 12.5%
5. A school has 1200 students. If 45% are girls, what is the number of boys?
A) 600
B) 660
C) 700
D) 720
6. If 20% of a number is 12, what is 50% of that number?
A) 25
B) 30
C) 35
D) 40
7. A man invests $5000, which grows to $6000 in one year. What is the percentage increase in his investment?
A) 10%
B) 15%
C) 20%
D) 25%
8. If the cost price of 10 articles is equal to the selling price of 8 articles, what is the profit percentage?
A) 15%
B) 20%
C) 25%
D) 30%
9. What is 150% of 80?
A) 100
B) 120
C) 150
D) 160
10. A survey found that 60% of people like coffee, and 70% like tea. If 10% like neither, what percentage of people like both coffee and tea?
A) 10%
B) 20%
C) 30%
D) 40%
11. If a number is divided by 5 and then increased by 20%, what is the net percentage change?
A) 60% increase
B) 75% increase
C) 80% increase
D) 100% increase
12. What is the percentage of 750 grams in 3 kg?
A) 15%
B) 20%
C) 25%
D) 30%
13. A seller reduces the price of a product by 10%. To get back to the original price, by what percentage must the new price be increased?
A) 9.09%
B) 10%
C) 11.11%
D) 12.5%
14. If the radius of a circle is increased by 10%, its area is increased by approximately what percentage?
A) 10%
B) 11%
C) 20%
D) 21%
15. In an examination, 30% of the total marks are required to pass. A student who gets 200 marks fails by 10 marks. What are the maximum marks for the examination?
A) 600
B) 650
C) 700
D) 750
16. What is 2.5% of 500?
A) 10
B) 12.5
C) 15
D) 20
17. If A's income is 25% more than B's income, by what percentage is B's income less than A's income?
A) 15%
B) 20%
C) 25%
D) 30%
18. A man buys an article for $800 and sells it for $1000. What is his profit percentage?
A) 20%
B) 25%
C) 30%
D) 40%
19. If 40% of a number is 80, what is 60% of that number?
A) 100
B) 120
C) 150
D) 160
20. The price of a TV is decreased by 25%. The new price is $15000. What was the original price?
A) $18000
B) $18750
C) $20000
D) $22500
21. If a number is increased by 10% and then by 20%, what is the overall percentage increase?
A) 28%
B) 30%
C) 32%
D) 34%
22. What percentage of 5 kg is 200 grams?
A) 4%
B) 5%
C) 10%
D) 20%
23. A person spends 70% of their income. If their income increases by 20% and they save 30% of the new income, what is the percentage change in their savings?
A) 10% decrease
B) 10% increase
C) No change
D) 20% increase
24. If the price of a commodity is decreased by 20%, by what percentage must its consumption be increased to maintain the same expenditure?
A) 20%
B) 25%
C) 30%
D) 40%
25. In a class, 60% are boys. If the number of girls is 24, how many students are there in the class?
A) 40
B) 50
C) 60
D) 70
26. What is 0.05 expressed as a percentage?
A) 0.05%
B) 0.5%
C) 5%
D) 50%
27. If 30% of 'a' is equal to 20% of 'b', then what is 'a' as a percentage of 'b'?
A) 66.67%
B) 150%
C) 75%
D) 60%
28. A shopkeeper marks his goods 50% above the cost price and then offers a 20% discount. What is his profit percentage?
A) 20%
B) 25%
C) 30%
D) 40%
29. If a number is increased by 25% and then decreased by 20%, what is the net percentage change?
A) 5% increase
B) 5% decrease
C) No change
D) 2% increase
30. What is 12.5% of 800?
A) 100
B) 120
C) 150
D) 200
31. In an election, one candidate got 40% of the total valid votes. 10% of the total votes were declared invalid. If the total number of votes polled was 8000, how many votes did the other candidate get?
A) 3840
B) 4320
C) 3600
D) 4000
32. If the price of sugar increases by 20%, by what percentage should a household reduce its consumption so that the expenditure does not increase?
A) 10%
B) 16.67%
C) 20%
D) 25%
33. What is 3/5 expressed as a percentage?
A) 30%
B) 40%
C) 50%
D) 60%
34. If 15% of a salary is deducted for taxes and 5% for insurance, the remaining salary is $16000. What is the total salary?
A) $20000
B) $22000
C) $25000
D) $24000
35. A mixture contains 20% water. If 10 liters of water are added, the percentage of water becomes 25%. What was the initial quantity of the mixture?
A) 30 liters
B) 40 liters
C) 50 liters
D) 60 liters
36. What is the percentage of 50 paise in 2 rupees?
A) 10%
B) 20%
C) 25%
D) 50%
37. If the length of a rectangle is increased by 20% and the width is decreased by 10%, what is the net percentage change in its area?
A) 8% increase
B) 8% decrease
C) 10% increase
D) 10% decrease
38. A candidate fails by 10 marks. If the pass percentage is 35% and they scored 200 marks, what is the maximum marks?
A) 2000
B) 2200
C) 2500
D) 2400
39. What is 0.75 expressed as a percentage?
A) 7.5%
B) 75%
C) 0.75%
D) 750%
40. If a quantity is increased by 10% and then decreased by 10%, what is the net percentage change?
A) 1% increase
B) 1% decrease
C) No change
D) 10% increase
41. Two numbers are 20% and 50% less than a third number. What is the ratio of the two numbers?
A) 2:5
B) 3:5
C) 4:5
D) 1:2
42. What is the percentage decrease if a value drops from 80 to 60?
A) 15%
B) 20%
C) 25%
D) 30%
43. If 60% of a number is 30, what is the number?
A) 40
B) 50
C) 60
D) 75
44. An item is sold for $120 after a 20% discount. What was the original marked price?
A) $140
B) $144
C) $150
D) $160
45. What is 50% of 50% of 100?
A) 10
B) 25
C) 50
D) 75
46. If the population of a town increased from 10,000 to 12,000, what is the percentage increase?
A) 10%
B) 15%
C) 20%
D) 25%
47. A student scored 40 marks out of 50. What is their percentage score?
A) 70%
B) 80%
C) 90%
D) 60%
48. What is 1/4 expressed as a percentage?
A) 12.5%
B) 20%
C) 25%
D) 40%
49. If a price of an item is increased by 10%, and the original price was $50, what is the new price?
A) $50.50
B) $55
C) $60
D) $50.10
50. What is 25% of 200?
A) 25
B) 50
C) 75
D) 100
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