Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 38 · 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 ₹54500 grow to in 1 year at 5% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹17600 at 15% per year for 2 years (in ₹)?
3. 3.A scooter is worth ₹21600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
4. 4.What amount will ₹15000 grow to in 1 year at 12% per year compound interest (in ₹)?
5. 5.What amount will ₹28800 grow to in 3 years at 25% per year compound interest (in ₹)?
6. 6.A scooter is worth ₹50000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
7. 7.A town has 26600 people. The population grows by 15% every year. What will the population be after 1 year?
8. 8.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
9. 9.A scooter is worth ₹30500. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
10. 10.A town has 5600 people. The population grows by 10% every year. What will the population be after 2 years?
11. 11.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹47500 at 4% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹51000 at 10% per year for 3 years, compounded every year (in ₹).
14. 14.What amount will ₹13000 grow to in 2 years at 10% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹47700 at 4% per year for 1 year, compounded every year (in ₹).
16. 16.What amount will ₹36500 grow to in 3 years at 20% per year compound interest (in ₹)?
17. 17.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
18. 18.What is the difference between the compound interest and the simple interest on ₹4100 at 10% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹52000. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
20. 20.What amount will ₹10000 grow to in 2 years at 25% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
22. 22.A town has 41600 people. The population grows by 25% every year. What will the population be after 2 years?
23. 23.What amount will ₹10000 grow to in 3 years at 10% per year compound interest (in ₹)?
24. 24.What amount will ₹46100 grow to in 2 years at 20% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹4000 at 25% per year for 2 years (in ₹)?
26. 26.What amount will ₹52000 grow to in 2 years at 15% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹50400 at 5% per year for 1 year, compounded every year (in ₹).
28. 28.A town has 26800 people. The population grows by 15% every year. What will the population be after 2 years?
29. 29.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
30. 30.What amount will ₹9900 grow to in 1 year at 4% per year compound interest (in ₹)?
31. 31.A scooter is worth ₹45000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
32. 32.What amount will ₹3900 grow to in 1 year at 10% per year compound interest (in ₹)?
33. 33.What amount will ₹4100 grow to in 1 year at 10% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹22000 at 10% per year for 3 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹44800 at 5% per year for 2 years (in ₹)?
36. 36.What amount will ₹36500 grow to in 1 year at 15% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹25600 at 25% per year for 3 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹12500 at 8% per year for 2 years, compounded every year (in ₹).
40. 40.What amount will ₹52700 grow to in 1 year at 25% per year compound interest (in ₹)?

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