Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 856 · 40 sums

The method (Grow it every year): Year by year: new amount = amount × (100 + R) ÷ 100. Amount after T years = P × (1 + R/100)ᵀ; compound interest = amount − P. A value falling by R% each year: × (100 − R) ÷ 100 every year. For 2 years, CI − SI = P × R × R ÷ 10000.

1. 1.Find the compound interest on ₹51200 at 25% per year for 3 years, compounded every year (in ₹).
2. 2.What amount will ₹43000 grow to in 3 years at 10% per year compound interest (in ₹)?
3. 3.A town has 6500 people. The population grows by 20% every year. What will the population be after 3 years?
4. 4.What amount will ₹14300 grow to in 1 year at 4% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹21900 at 10% per year for 1 year, compounded every year (in ₹).
6. 6.Find the compound interest on ₹39700 at 15% per year for 1 year, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹42100 at 10% per year for 2 years (in ₹)?
8. 8.What amount will ₹50500 grow to in 1 year at 25% per year compound interest (in ₹)?
9. 9.A town has 53600 people. The population grows by 5% every year. What will the population be after 1 year?
10. 10.A town has 59800 people. The population grows by 10% every year. What will the population be after 2 years?
11. 11.What is the difference between the compound interest and the simple interest on ₹47200 at 25% per year for 2 years (in ₹)?
12. 12.A town has 50000 people. The population grows by 5% every year. What will the population be after 2 years?
13. 13.Find the compound interest on ₹55600 at 5% per year for 2 years, compounded every year (in ₹).
14. 14.Find the compound interest on ₹7500 at 12% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹59700 grow to in 1 year at 15% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹58400 at 25% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹33200 at 25% per year for 2 years (in ₹)?
18. 18.A town has 9800 people. The population grows by 15% every year. What will the population be after 1 year?
19. 19.What amount will ₹50700 grow to in 2 years at 10% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹10000 at 15% per year for 2 years (in ₹)?
21. 21.What amount will ₹46000 grow to in 2 years at 5% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹18400 at 15% per year for 1 year, compounded every year (in ₹).
23. 23.A town has 22500 people. The population grows by 12% every year. What will the population be after 2 years?
24. 24.A town has 9300 people. The population grows by 4% every year. What will the population be after 1 year?
25. 25.What is the difference between the compound interest and the simple interest on ₹38400 at 5% per year for 2 years (in ₹)?
26. 26.What amount will ₹18600 grow to in 1 year at 4% per year compound interest (in ₹)?
27. 27.What amount will ₹28400 grow to in 1 year at 15% per year compound interest (in ₹)?
28. 28.A town has 50000 people. The population grows by 4% every year. What will the population be after 2 years?
29. 29.What amount will ₹16200 grow to in 1 year at 5% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹23200 at 15% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹56800 at 15% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹38800 at 12% per year for 1 year, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹30000 at 12% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹11800 at 10% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹57500 at 8% per year for 2 years, compounded every year (in ₹).
37. 37.A town has 11100 people. The population grows by 5% every year. What will the population be after 1 year?
38. 38.What is the difference between the compound interest and the simple interest on ₹23800 at 10% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹17400 at 20% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹25200 at 15% per year for 2 years (in ₹)?

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