Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 272 · 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 ₹13600 grow to in 2 years at 15% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
3. 3.A town has 57500 people. The population grows by 4% every year. What will the population be after 2 years?
4. 4.Find the compound interest on ₹47300 at 12% per year for 1 year, compounded every year (in ₹).
5. 5.A scooter is worth ₹14400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
6. 6.What amount will ₹34100 grow to in 1 year at 25% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹15000 at 8% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹25000 at 4% per year for 2 years, compounded every year (in ₹).
9. 9.A town has 43200 people. The population grows by 25% every year. What will the population be after 3 years?
10. 10.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
11. 11.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹52800. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
14. 14.A town has 35100 people. The population grows by 20% every year. What will the population be after 2 years?
15. 15.A scooter is worth ₹4800. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
16. 16.What amount will ₹8300 grow to in 1 year at 8% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹20500 at 10% per year for 2 years (in ₹)?
18. 18.A town has 5600 people. The population grows by 5% every year. What will the population be after 2 years?
19. 19.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹38000 at 10% per year for 3 years, compounded every year (in ₹).
21. 21.A town has 25900 people. The population grows by 15% every year. What will the population be after 1 year?
22. 22.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
23. 23.What amount will ₹23600 grow to in 1 year at 20% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹7600 at 25% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹35100 at 20% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
28. 28.What amount will ₹54800 grow to in 1 year at 4% per year compound interest (in ₹)?
29. 29.What amount will ₹21500 grow to in 3 years at 20% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
31. 31.A town has 18600 people. The population grows by 4% every year. What will the population be after 1 year?
32. 32.Find the compound interest on ₹21700 at 12% per year for 1 year, compounded every year (in ₹).
33. 33.A scooter is worth ₹42400. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
34. 34.What amount will ₹44000 grow to in 2 years at 15% per year compound interest (in ₹)?
35. 35.What amount will ₹59600 grow to in 1 year at 5% per year compound interest (in ₹)?
36. 36.A scooter is worth ₹51000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
37. 37.A scooter is worth ₹30300. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹8000 at 15% per year for 2 years (in ₹)?
39. 39.What amount will ₹37000 grow to in 3 years at 10% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹2700 at 15% per year for 1 year, compounded every year (in ₹).

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