Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 203 · 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 ₹27500 at 8% per year for 2 years, compounded every year (in ₹).
2. 2.What amount will ₹36900 grow to in 1 year at 10% per year compound interest (in ₹)?
3. 3.A scooter is worth ₹4200. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
4. 4.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
5. 5.A town has 52500 people. The population grows by 4% every year. What will the population be after 2 years?
6. 6.What is the difference between the compound interest and the simple interest on ₹3800 at 10% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹31600 at 5% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹55200 grow to in 2 years at 15% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹55600 at 15% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
11. 11.What amount will ₹35000 grow to in 2 years at 12% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹48400 at 25% per year for 2 years, compounded every year (in ₹).
13. 13.What amount will ₹6600 grow to in 1 year at 15% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹56000 at 25% per year for 3 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹57200 at 20% per year for 2 years, compounded every year (in ₹).
16. 16.A town has 37500 people. The population grows by 12% every year. What will the population be after 2 years?
17. 17.A scooter is worth ₹30000. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
18. 18.Find the compound interest on ₹31300 at 10% per year for 1 year, compounded every year (in ₹).
19. 19.Find the compound interest on ₹29400 at 15% per year for 1 year, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹2000 at 25% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹47500 at 4% per year for 2 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹16200 at 20% per year for 2 years, compounded every year (in ₹).
23. 23.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹50000 at 4% per year for 2 years, compounded every year (in ₹).
25. 25.What amount will ₹50500 grow to in 2 years at 10% per year compound interest (in ₹)?
26. 26.A town has 29000 people. The population grows by 10% every year. What will the population be after 1 year?
27. 27.A town has 57000 people. The population grows by 10% every year. What will the population be after 3 years?
28. 28.What is the difference between the compound interest and the simple interest on ₹59200 at 25% per year for 2 years (in ₹)?
29. 29.What amount will ₹18200 grow to in 1 year at 8% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹25000 at 4% per year for 2 years, compounded every year (in ₹).
32. 32.A town has 9800 people. The population grows by 5% every year. What will the population be after 1 year?
33. 33.What is the difference between the compound interest and the simple interest on ₹26000 at 25% per year for 2 years (in ₹)?
34. 34.What amount will ₹3400 grow to in 1 year at 20% per year compound interest (in ₹)?
35. 35.What amount will ₹58000 grow to in 1 year at 4% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹44700 at 10% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
38. 38.What amount will ₹40400 grow to in 2 years at 5% per year compound interest (in ₹)?
39. 39.A scooter is worth ₹43500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹54800 at 25% per year for 2 years (in ₹)?

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