Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 256 · 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 ₹27200 at 5% per year for 2 years, compounded every year (in ₹).
2. 2.What amount will ₹52800 grow to in 3 years at 25% per year compound interest (in ₹)?
3. 3.What amount will ₹49400 grow to in 1 year at 12% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹27800 at 20% per year for 2 years (in ₹)?
5. 5.What amount will ₹59600 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.What amount will ₹30000 grow to in 2 years at 8% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹47200 at 25% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹4400 at 4% per year for 1 year, compounded every year (in ₹).
9. 9.Find the compound interest on ₹31100 at 8% per year for 1 year, compounded every year (in ₹).
10. 10.Find the compound interest on ₹36600 at 20% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹44800 at 5% per year for 2 years, compounded every year (in ₹).
13. 13.A scooter is worth ₹26000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
14. 14.Find the compound interest on ₹22000 at 10% per year for 3 years, compounded every year (in ₹).
15. 15.What amount will ₹36800 grow to in 3 years at 25% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹11400 at 25% per year for 1 year, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹43100 at 10% per year for 2 years (in ₹)?
19. 19.A town has 6000 people. The population grows by 15% every year. What will the population be after 2 years?
20. 20.Find the compound interest on ₹24000 at 25% per year for 3 years, compounded every year (in ₹).
21. 21.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
22. 22.What amount will ₹36900 grow to in 1 year at 8% per year compound interest (in ₹)?
23. 23.What amount will ₹28400 grow to in 2 years at 25% per year compound interest (in ₹)?
24. 24.A town has 47500 people. The population grows by 12% every year. What will the population be after 2 years?
25. 25.What amount will ₹6100 grow to in 2 years at 20% per year compound interest (in ₹)?
26. 26.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹40000 at 25% per year for 3 years, compounded every year (in ₹).
29. 29.What amount will ₹42500 grow to in 2 years at 12% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹6800 at 5% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹38000 at 8% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹57500 at 12% per year for 2 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹23200 at 5% per year for 2 years (in ₹)?
34. 34.What amount will ₹22500 grow to in 1 year at 5% per year compound interest (in ₹)?
35. 35.A town has 18400 people. The population grows by 5% every year. What will the population be after 1 year?
36. 36.What amount will ₹12000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹51200 at 25% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹17500 grow to in 2 years at 8% per year compound interest (in ₹)?
39. 39.What amount will ₹36500 grow to in 1 year at 12% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹16800 at 15% per year for 2 years (in ₹)?

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