Percentage Increase and Decrease Worksheet

Quantitative aptitude lesson 11: Percentage increase and decrease · Set 148 · 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 price comes down by 10% and then comes down by 5% more. By what percent has it come down in all? =
2. 2.A price comes down by 30% and then comes down by 15% more. By what percent has it come down in all? =
3. 3.A town has 520 people. Its population grows by 5%. How many people live there now?
4. 4.A price comes down by 30% and then comes down by 25% more. By what percent has it come down in all? =
5. 5.The price of a school bag changes from ₹3460 to ₹1730. By what percent did it come down?
6. 6.A water tank holds 340 litres. 40% of the water is used. How many litres are left?
7. 7.The price of a bicycle is ₹2760. It goes up by 20%. What is the new price (in ₹)?
8. 8.The price of a school bag changes from ₹4040 to ₹3636. By what percent did it come down?
9. 9.The price of a bicycle is ₹520. It goes up by 15%. What is the new price (in ₹)?
10. 10.A price comes down by 5% and then comes down by 30% more. By what percent has it come down in all? =
11. 11.A price comes down by 30% and then comes down by 50% more. By what percent has it come down in all? =
12. 12.A water tank holds 4380 litres. 30% of the water is used. How many litres are left?
13. 13.The price of a school bag changes from ₹1340 to ₹1139. By what percent did it come down?
14. 14.A price goes up by 20% and then goes up by 10% more. By what percent has it gone up in all? =
15. 15.The price of a bicycle is ₹3620. It goes up by 20%. What is the new price (in ₹)?
16. 16.A water tank holds 1440 litres. 25% of the water is used. How many litres are left?
17. 17.The price of a school bag changes from ₹4740 to ₹5925. By what percent did it go up?
18. 18.A town has 4880 people. Its population grows by 5%. How many people live there now?
19. 19.A water tank holds 760 litres. 40% of the water is used. How many litres are left?
20. 20.A shop sells 3160 cups of tea a month. Next month it sells 15% more. How many cups does it sell next month?
21. 21.A water tank holds 200 litres. 10% of the water is used. How many litres are left?
22. 22.A price goes up by 40% and then goes up by 5% more. By what percent has it gone up in all? =
23. 23.A shop sells 620 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
24. 24.The price of a school bag changes from ₹2140 to ₹1819. By what percent did it come down?
25. 25.The price of a school bag changes from ₹1700 to ₹1275. By what percent did it come down?
26. 26.A price goes up by 10% and then goes up by 10% more. By what percent has it gone up in all? =
27. 27.The price of a school bag changes from ₹400 to ₹240. By what percent did it come down?
28. 28.A water tank holds 2880 litres. 25% of the water is used. How many litres are left?
29. 29.The price of a school bag changes from ₹2180 to ₹2834. By what percent did it go up?
30. 30.A price goes up by 40% and then goes up by 50% more. By what percent has it gone up in all? =
31. 31.A water tank holds 4960 litres. 15% of the water is used. How many litres are left?
32. 32.A town has 180 people. Its population grows by 30%. How many people live there now?
33. 33.A water tank holds 2700 litres. 5% of the water is used. How many litres are left?
34. 34.The price of a bicycle is ₹1340. It goes up by 15%. What is the new price (in ₹)?
35. 35.A water tank holds 3880 litres. 5% of the water is used. How many litres are left?
36. 36.The price of a bicycle is ₹1540. It goes up by 5%. What is the new price (in ₹)?
37. 37.A shop sells 3860 cups of tea a month. Next month it sells 20% more. How many cups does it sell next month?
38. 38.A water tank holds 4160 litres. 5% of the water is used. How many litres are left?
39. 39.A water tank holds 2460 litres. 50% of the water is used. How many litres are left?
40. 40.A shop sells 2520 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?

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