Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 376 · 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 ₹47500 at 12% per year for 2 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹59700 at 8% per year for 1 year, compounded every year (in ₹).
3. 3.Find the compound interest on ₹16400 at 15% per year for 2 years, compounded every year (in ₹).
4. 4.What amount will ₹42900 grow to in 1 year at 12% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹55000 at 12% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹14500 at 10% per year for 2 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹37700 at 15% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹22000 grow to in 1 year at 5% per year compound interest (in ₹)?
9. 9.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹51600 at 10% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹37500 at 8% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹25000 grow to in 2 years at 12% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹27500 at 8% per year for 2 years, compounded every year (in ₹).
14. 14.Find the compound interest on ₹18800 at 25% per year for 2 years, compounded every year (in ₹).
15. 15.What amount will ₹33500 grow to in 1 year at 8% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹52000 at 20% per year for 3 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹51000 at 10% per year for 3 years, compounded every year (in ₹).
19. 19.What amount will ₹37500 grow to in 2 years at 12% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹45200 at 15% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹48500 at 20% per year for 3 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹41600 at 25% per year for 2 years, compounded every year (in ₹).
23. 23.What amount will ₹29000 grow to in 3 years at 10% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹10500 at 5% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹24000 grow to in 2 years at 5% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹35400 at 10% per year for 2 years (in ₹)?
27. 27.What amount will ₹42000 grow to in 3 years at 10% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹8500 at 4% per year for 1 year, compounded every year (in ₹).
29. 29.A town has 17600 people. The population grows by 25% every year. What will the population be after 2 years?
30. 30.A town has 6500 people. The population grows by 20% every year. What will the population be after 3 years?
31. 31.Find the compound interest on ₹37500 at 4% per year for 2 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹56500 at 20% per year for 3 years, compounded every year (in ₹).
33. 33.What amount will ₹7100 grow to in 2 years at 20% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹31300 at 20% per year for 2 years (in ₹)?
35. 35.What amount will ₹52400 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.A town has 48000 people. The population grows by 10% every year. What will the population be after 3 years?
37. 37.A scooter is worth ₹2200. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹12000 at 25% per year for 2 years (in ₹)?
39. 39.A scooter is worth ₹9000. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?

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