Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 659 · 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 ₹32300 grow to in 1 year at 5% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹22400 at 15% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹55300 at 20% per year for 2 years (in ₹)?
4. 4.What amount will ₹38000 grow to in 2 years at 20% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹18400 at 15% per year for 2 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹47200 at 20% per year for 2 years (in ₹)?
8. 8.What amount will ₹27700 grow to in 1 year at 25% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹29000 at 10% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹24000 at 20% per year for 3 years, compounded every year (in ₹).
11. 11.A town has 37500 people. The population grows by 8% every year. What will the population be after 2 years?
12. 12.Find the compound interest on ₹8700 at 25% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹27200 at 15% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹29400 at 10% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹58200 at 10% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹19100 at 15% per year for 1 year, compounded every year (in ₹).
18. 18.A scooter is worth ₹38500. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
19. 19.What amount will ₹2500 grow to in 2 years at 4% per year compound interest (in ₹)?
20. 20.What amount will ₹59300 grow to in 1 year at 12% per year compound interest (in ₹)?
21. 21.A town has 6300 people. The population grows by 8% every year. What will the population be after 1 year?
22. 22.What amount will ₹55500 grow to in 1 year at 8% per year compound interest (in ₹)?
23. 23.A town has 20800 people. The population grows by 25% every year. What will the population be after 2 years?
24. 24.A town has 53900 people. The population grows by 10% every year. What will the population be after 1 year?
25. 25.What is the difference between the compound interest and the simple interest on ₹50000 at 15% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹36800 at 10% per year for 2 years, compounded every year (in ₹).
27. 27.A town has 59500 people. The population grows by 10% every year. What will the population be after 2 years?
28. 28.Find the compound interest on ₹5600 at 10% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹20000 grow to in 2 years at 8% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹18400 at 5% per year for 2 years (in ₹)?
31. 31.A town has 5000 people. The population grows by 4% every year. What will the population be after 2 years?
32. 32.What amount will ₹21600 grow to in 2 years at 25% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
34. 34.What amount will ₹50000 grow to in 2 years at 5% per year compound interest (in ₹)?
35. 35.A town has 10000 people. The population grows by 4% every year. What will the population be after 2 years?
36. 36.Find the compound interest on ₹31600 at 15% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹39600 at 15% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹16800 at 25% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹60000 at 4% per year for 2 years (in ₹)?
40. 40.A town has 7400 people. The population grows by 8% every year. What will the population be after 1 year?

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