Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 974 · 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.What amount will ₹57100 grow to in 1 year at 15% per year compound interest (in ₹)?
2. 2.A scooter is worth ₹17600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
3. 3.Find the compound interest on ₹7600 at 5% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹40800 at 20% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹59300 at 20% per year for 1 year, compounded every year (in ₹).
6. 6.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
7. 7.What amount will ₹27800 grow to in 1 year at 20% per year compound interest (in ₹)?
8. 8.What amount will ₹51200 grow to in 3 years at 25% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹47200 at 15% per year for 2 years, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹52000 at 15% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹10300 grow to in 1 year at 4% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹2200 at 20% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹18000 at 25% per year for 1 year, compounded every year (in ₹).
15. 15.Find the compound interest on ₹38900 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.A town has 35600 people. The population grows by 25% every year. What will the population be after 2 years?
17. 17.Find the compound interest on ₹44900 at 25% per year for 1 year, compounded every year (in ₹).
18. 18.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
19. 19.What amount will ₹56500 grow to in 2 years at 20% per year compound interest (in ₹)?
20. 20.A scooter is worth ₹37500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
21. 21.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹14800 at 10% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹7700 grow to in 2 years at 10% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹22000 at 25% per year for 2 years (in ₹)?
25. 25.A scooter is worth ₹45000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
26. 26.Find the compound interest on ₹47600 at 5% per year for 2 years, compounded every year (in ₹).
27. 27.A town has 54400 people. The population grows by 15% every year. What will the population be after 2 years?
28. 28.A scooter is worth ₹29600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
29. 29.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.A town has 14000 people. The population grows by 5% every year. What will the population be after 2 years?
31. 31.What is the difference between the compound interest and the simple interest on ₹16400 at 5% per year for 2 years (in ₹)?
32. 32.A town has 14300 people. The population grows by 12% every year. What will the population be after 1 year?
33. 33.Find the compound interest on ₹4300 at 20% per year for 2 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹55000 at 20% per year for 3 years, compounded every year (in ₹).
35. 35.What amount will ₹27500 grow to in 2 years at 10% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹10000 at 15% per year for 2 years (in ₹)?
37. 37.What amount will ₹20200 grow to in 2 years at 10% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
39. 39.A town has 7300 people. The population grows by 10% every year. What will the population be after 2 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹55900 at 10% per year for 2 years (in ₹)?

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