Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 146 · 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 ₹1200. It goes up by 25%. What is the new price (in ₹)?
2. 2.A water tank holds 1260 litres. 40% of the water is used. How many litres are left?
3. 3.A shop sells 2020 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
4. 4.The price of a bicycle is ₹4440. It goes up by 20%. What is the new price (in ₹)?
5. 5.A price comes down by 40% and then comes down by 25% more. By what percent has it come down in all? =
6. 6.A town has 80 people. Its population grows by 5%. How many people live there now?
7. 7.A water tank holds 1740 litres. 40% of the water is used. How many litres are left?
8. 8.A town has 3060 people. Its population grows by 25%. How many people live there now?
9. 9.The price of a bicycle is ₹2740. It goes up by 15%. What is the new price (in ₹)?
10. 10.A shop sells 3900 cups of tea a month. Next month it sells 30% more. How many cups does it sell next month?
11. 11.A town has 2000 people. Its population grows by 15%. How many people live there now?
12. 12.The price of a school bag changes from ₹4160 to ₹2912. By what percent did it come down?
13. 13.A shop sells 520 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
14. 14.The price of a school bag changes from ₹1000 to ₹950. By what percent did it come down?
15. 15.The price of a school bag changes from ₹1420 to ₹2130. By what percent did it go up?
16. 16.A water tank holds 1000 litres. 25% of the water is used. How many litres are left?
17. 17.The price of a school bag changes from ₹4860 to ₹5103. By what percent did it go up?
18. 18.A water tank holds 2960 litres. 10% of the water is used. How many litres are left?
19. 19.A shop sells 2700 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
20. 20.A water tank holds 4860 litres. 20% of the water is used. How many litres are left?
21. 21.The price of a bicycle is ₹480. It goes up by 10%. What is the new price (in ₹)?
22. 22.The price of a school bag changes from ₹2940 to ₹2646. By what percent did it come down?
23. 23.A water tank holds 4880 litres. 50% of the water is used. How many litres are left?
24. 24.A water tank holds 1280 litres. 40% of the water is used. How many litres are left?
25. 25.A price goes up by 10% and then goes up by 20% more. By what percent has it gone up in all? =
26. 26.A shop sells 4680 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
27. 27.A price goes up by 15% and then goes up by 30% more. By what percent has it gone up in all? =
28. 28.A water tank holds 2560 litres. 15% of the water is used. How many litres are left?
29. 29.A price comes down by 40% and then comes down by 30% more. By what percent has it come down in all? =
30. 30.The price of a school bag changes from ₹2120 to ₹1590. By what percent did it come down?
31. 31.A water tank holds 3240 litres. 5% of the water is used. How many litres are left?
32. 32.A town has 3200 people. Its population grows by 40%. How many people live there now?
33. 33.A town has 3620 people. Its population grows by 30%. How many people live there now?
34. 34.The price of a bicycle is ₹3840. It goes up by 30%. What is the new price (in ₹)?
35. 35.A water tank holds 920 litres. 20% of the water is used. How many litres are left?
36. 36.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
37. 37.A price comes down by 10% and then comes down by 50% more. By what percent has it come down in all? =
38. 38.A shop sells 3320 cups of tea a month. Next month it sells 10% more. How many cups does it sell next month?
39. 39.A water tank holds 3280 litres. 15% of the water is used. How many litres are left?
40. 40.A price comes down by 50% and then comes down by 40% more. By what percent has it come down in all? =

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