Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 547 · 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 ₹50000 at 15% per year for 2 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹11200 at 20% per year for 2 years, compounded every year (in ₹).
4. 4.What amount will ₹56500 grow to in 3 years at 20% per year compound interest (in ₹)?
5. 5.What amount will ₹44800 grow to in 1 year at 10% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹49000 at 20% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹2000 grow to in 2 years at 5% per year compound interest (in ₹)?
8. 8.A scooter is worth ₹21200. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹15100 at 20% per year for 2 years (in ₹)?
10. 10.A town has 15000 people. The population grows by 4% every year. What will the population be after 2 years?
11. 11.What amount will ₹10000 grow to in 3 years at 20% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹28300 at 20% per year for 1 year, compounded every year (in ₹).
13. 13.Find the compound interest on ₹36600 at 8% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹35500 at 4% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹18500 grow to in 2 years at 10% per year compound interest (in ₹)?
16. 16.A scooter is worth ₹5300. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
17. 17.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹8500 at 20% per year for 2 years (in ₹)?
19. 19.What amount will ₹42100 grow to in 1 year at 20% per year compound interest (in ₹)?
20. 20.A town has 18500 people. The population grows by 10% every year. What will the population be after 2 years?
21. 21.Find the compound interest on ₹20000 at 8% per year for 2 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹25700 at 15% per year for 1 year, compounded every year (in ₹).
23. 23.A town has 10000 people. The population grows by 8% every year. What will the population be after 2 years?
24. 24.What is the difference between the compound interest and the simple interest on ₹51100 at 10% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹7000 at 5% per year for 1 year, compounded every year (in ₹).
26. 26.A town has 40000 people. The population grows by 15% every year. What will the population be after 3 years?
27. 27.What amount will ₹6300 grow to in 1 year at 25% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹37200 at 5% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹25400 at 10% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹36000 at 10% per year for 3 years, compounded every year (in ₹).
31. 31.A scooter is worth ₹56000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹45000 at 12% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹22900 at 10% per year for 2 years (in ₹)?
34. 34.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹8600 at 12% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹16800 at 5% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹5300 at 5% per year for 1 year, compounded every year (in ₹).
38. 38.What amount will ₹31600 grow to in 1 year at 10% per year compound interest (in ₹)?
39. 39.What amount will ₹42500 grow to in 2 years at 8% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?

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