Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 61 · 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 ₹7500 at 4% per year for 2 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹60000 at 5% per year for 2 years (in ₹)?
3. 3.A town has 15000 people. The population grows by 12% every year. What will the population be after 2 years?
4. 4.Find the compound interest on ₹41300 at 12% per year for 1 year, compounded every year (in ₹).
5. 5.A scooter is worth ₹57600. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
6. 6.A town has 4800 people. The population grows by 15% every year. What will the population be after 1 year?
7. 7.What is the difference between the compound interest and the simple interest on ₹28000 at 15% per year for 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹18600 at 10% per year for 2 years (in ₹)?
9. 9.A scooter is worth ₹15700. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹18000 at 5% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹22800. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
12. 12.Find the compound interest on ₹2300 at 5% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹52500 at 20% per year for 2 years (in ₹)?
14. 14.What amount will ₹47000 grow to in 1 year at 20% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹4400 at 5% per year for 2 years, compounded every year (in ₹).
16. 16.What amount will ₹57900 grow to in 1 year at 15% per year compound interest (in ₹)?
17. 17.A scooter is worth ₹33000. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
18. 18.A scooter is worth ₹22200. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
19. 19.What amount will ₹59200 grow to in 1 year at 25% per year compound interest (in ₹)?
20. 20.What amount will ₹9600 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 ₹40800 at 15% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹2200 at 10% per year for 1 year, compounded every year (in ₹).
23. 23.Find the compound interest on ₹46400 at 25% per year for 3 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹27500 at 12% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹24800 at 5% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹27100 at 4% per year for 1 year, compounded every year (in ₹).
27. 27.Find the compound interest on ₹40500 at 12% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹52500 at 12% per year for 2 years (in ₹)?
29. 29.A scooter is worth ₹56000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹28800 at 5% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹19200 at 5% per year for 2 years (in ₹)?
32. 32.A town has 46200 people. The population grows by 10% every year. What will the population be after 2 years?
33. 33.What amount will ₹36800 grow to in 1 year at 25% per year compound interest (in ₹)?
34. 34.A scooter is worth ₹42500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹60000 at 8% per year for 2 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹26400 at 8% per year for 1 year, compounded every year (in ₹).
39. 39.A scooter is worth ₹42200. Its value falls by 5% 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 ₹27200 at 25% per year for 2 years (in ₹)?

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