Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 333 · 40 questions

The method (Start value is 100%): New value after a rise of p%: value + p% of value. After a fall: value − p% of value. Percent change = change ÷ starting value × 100. Two changes a% and b% one after the other: a + b + (a × b) ÷ 100, with a fall counted as minus.

1. 1.The price of a bicycle is ₹2240. It goes up by 15%. What is the new price (in ₹)?
2. 2.A town has 560 people. Its population grows by 5%. How many people live there now?
3. 3.The price of a bicycle is ₹2120. It goes up by 20%. What is the new price (in ₹)?
4. 4.A water tank holds 840 litres. 5% of the water is used. How many litres are left?
5. 5.The price of a school bag changes from ₹4100 to ₹3690. By what percent did it come down?
6. 6.A town has 4040 people. Its population grows by 15%. How many people live there now?
7. 7.The price of a bicycle is ₹280. It goes up by 25%. What is the new price (in ₹)?
8. 8.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
9. 9.A price comes down by 30% and then comes down by 50% more. By what percent has it come down in all? =
10. 10.A water tank holds 2020 litres. 25% of the water is used. How many litres are left?
11. 11.A town has 1100 people. Its population grows by 15%. How many people live there now?
12. 12.A price goes up by 10% and then goes up by 30% more. By what percent has it gone up in all? =
13. 13.A water tank holds 4260 litres. 50% of the water is used. How many litres are left?
14. 14.The price of a bicycle is ₹2960. It goes up by 5%. What is the new price (in ₹)?
15. 15.A price comes down by 50% and then comes down by 40% more. By what percent has it come down in all? =
16. 16.A price goes up by 25% and then goes up by 15% more. By what percent has it gone up in all? =
17. 17.A shop sells 1420 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
18. 18.A water tank holds 740 litres. 50% of the water is used. How many litres are left?
19. 19.A price goes up by 25% and then goes up by 20% more. By what percent has it gone up in all? =
20. 20.A water tank holds 4180 litres. 40% of the water is used. How many litres are left?
21. 21.The price of a school bag changes from ₹1160 to ₹1334. By what percent did it go up?
22. 22.A shop sells 260 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
23. 23.The price of a school bag changes from ₹1520 to ₹1824. By what percent did it go up?
24. 24.A town has 2440 people. Its population grows by 10%. How many people live there now?
25. 25.A price goes up by 15% and then goes up by 15% more. By what percent has it gone up in all? =
26. 26.A water tank holds 3140 litres. 50% of the water is used. How many litres are left?
27. 27.A shop sells 1080 cups of tea a month. Next month it sells 50% more. How many cups does it sell next month?
28. 28.A water tank holds 3840 litres. 30% of the water is used. How many litres are left?
29. 29.A water tank holds 3020 litres. 20% of the water is used. How many litres are left?
30. 30.The price of a bicycle is ₹1920. It goes up by 5%. What is the new price (in ₹)?
31. 31.The price of a school bag changes from ₹3800 to ₹2660. By what percent did it come down?
32. 32.The price of a bicycle is ₹2300. It goes up by 50%. What is the new price (in ₹)?
33. 33.A price goes up by 20% and then comes down by 15%. By what percent has it gone up in all? =
34. 34.The price of a school bag changes from ₹1380 to ₹1794. By what percent did it go up?
35. 35.The price of a school bag changes from ₹3480 to ₹2958. By what percent did it come down?
36. 36.A water tank holds 2300 litres. 50% of the water is used. How many litres are left?
37. 37.The price of a bicycle is ₹4640. It goes up by 20%. What is the new price (in ₹)?
38. 38.A water tank holds 4520 litres. 40% of the water is used. How many litres are left?
39. 39.A shop sells 2860 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
40. 40.A shop sells 4000 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?

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