Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 368 · 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 ₹35800 at 10% per year for 2 years, compounded every year (in ₹).
2. 2.A town has 26700 people. The population grows by 5% every year. What will the population be after 1 year?
3. 3.What is the difference between the compound interest and the simple interest on ₹55000 at 4% per year for 2 years (in ₹)?
4. 4.A town has 45400 people. The population grows by 10% every year. What will the population be after 1 year?
5. 5.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹51600 at 5% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹16800 at 5% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹10300 at 5% per year for 1 year, compounded every year (in ₹).
9. 9.Find the compound interest on ₹25500 at 20% per year for 3 years, compounded every year (in ₹).
10. 10.What amount will ₹47200 grow to in 2 years at 5% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹36700 at 15% per year for 1 year, compounded every year (in ₹).
12. 12.Find the compound interest on ₹26800 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.A scooter is worth ₹43100. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
14. 14.Find the compound interest on ₹14600 at 20% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹15000 grow to in 2 years at 12% per year compound interest (in ₹)?
16. 16.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹28800 at 25% per year for 3 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹22400 at 4% per year for 1 year, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹48800 at 25% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹57500 at 8% per year for 2 years, compounded every year (in ₹).
23. 23.A town has 55000 people. The population grows by 12% every year. What will the population be after 2 years?
24. 24.Find the compound interest on ₹33000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹2800 at 5% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹29800 at 25% per year for 1 year, compounded every year (in ₹).
27. 27.Find the compound interest on ₹6600 at 10% per year for 2 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
29. 29.A town has 33400 people. The population grows by 25% every year. What will the population be after 1 year?
30. 30.Find the compound interest on ₹31200 at 20% per year for 2 years, compounded every year (in ₹).
31. 31.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹47600 at 5% per year for 2 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹6800 at 25% per year for 2 years (in ₹)?
34. 34.A scooter is worth ₹32500. Its value falls by 8% 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 ₹54900 at 10% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹36900 at 10% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹52800 at 12% per year for 1 year, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
39. 39.What amount will ₹26500 grow to in 1 year at 5% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹37500 at 10% per year for 2 years, compounded every year (in ₹).

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