Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 242 · 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.A water tank holds 80 litres. 5% of the water is used. How many litres are left?
2. 2.A price goes up by 20% and then goes up by 10% more. By what percent has it gone up in all? =
3. 3.A water tank holds 3120 litres. 10% of the water is used. How many litres are left?
4. 4.A shop sells 760 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
5. 5.The price of a bicycle is ₹700. It goes up by 40%. What is the new price (in ₹)?
6. 6.The price of a school bag changes from ₹3300 to ₹2640. By what percent did it come down?
7. 7.A shop sells 4480 cups of tea a month. Next month it sells 5% more. How many cups does it sell next month?
8. 8.The price of a school bag changes from ₹660 to ₹528. By what percent did it come down?
9. 9.A price comes down by 20% and then comes down by 5% more. By what percent has it come down in all? =
10. 10.A water tank holds 180 litres. 5% of the water is used. How many litres are left?
11. 11.The price of a school bag changes from ₹3800 to ₹3420. By what percent did it come down?
12. 12.A town has 1280 people. Its population grows by 25%. How many people live there now?
13. 13.The price of a bicycle is ₹680. It goes up by 20%. What is the new price (in ₹)?
14. 14.A price goes up by 50% and then goes up by 25% more. By what percent has it gone up in all? =
15. 15.A water tank holds 4380 litres. 15% of the water is used. How many litres are left?
16. 16.A water tank holds 4100 litres. 50% of the water is used. How many litres are left?
17. 17.A water tank holds 4040 litres. 15% of the water is used. How many litres are left?
18. 18.A water tank holds 3160 litres. 15% of the water is used. How many litres are left?
19. 19.The price of a bicycle is ₹2720. It goes up by 10%. What is the new price (in ₹)?
20. 20.A price goes up by 15% and then goes up by 10% more. By what percent has it gone up in all? =
21. 21.A town has 2300 people. Its population grows by 15%. How many people live there now?
22. 22.A water tank holds 4200 litres. 15% of the water is used. How many litres are left?
23. 23.The price of a school bag changes from ₹2820 to ₹2115. By what percent did it come down?
24. 24.The price of a bicycle is ₹240. It goes up by 20%. What is the new price (in ₹)?
25. 25.A town has 820 people. Its population grows by 50%. How many people live there now?
26. 26.The price of a bicycle is ₹3820. It goes up by 15%. What is the new price (in ₹)?
27. 27.A water tank holds 2160 litres. 20% of the water is used. How many litres are left?
28. 28.A water tank holds 3420 litres. 5% of the water is used. How many litres are left?
29. 29.A shop sells 4780 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
30. 30.The price of a bicycle is ₹3960. It goes up by 20%. What is the new price (in ₹)?
31. 31.A price goes up by 5% and then goes up by 20% more. By what percent has it gone up in all? =
32. 32.The price of a school bag changes from ₹2660 to ₹2394. By what percent did it come down?
33. 33.The price of a bicycle is ₹960. It goes up by 25%. What is the new price (in ₹)?
34. 34.The price of a school bag changes from ₹1260 to ₹1134. By what percent did it come down?
35. 35.A price goes up by 5% and then goes up by 40% more. By what percent has it gone up in all? =
36. 36.A water tank holds 2580 litres. 25% of the water is used. How many litres are left?
37. 37.The price of a school bag changes from ₹4620 to ₹5313. By what percent did it go up?
38. 38.The price of a school bag changes from ₹760 to ₹570. By what percent did it come down?
39. 39.A water tank holds 3360 litres. 20% of the water is used. How many litres are left?
40. 40.The price of a school bag changes from ₹2920 to ₹3650. By what percent did it go up?

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude