Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 824 · 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 ₹4300 at 5% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹24800 at 10% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹23100 at 10% per year for 1 year, compounded every year (in ₹).
5. 5.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹55000 grow to in 2 years at 4% per year compound interest (in ₹)?
7. 7.What amount will ₹7900 grow to in 1 year at 25% per year compound interest (in ₹)?
8. 8.A town has 26400 people. The population grows by 5% every year. What will the population be after 2 years?
9. 9.What amount will ₹57500 grow to in 2 years at 8% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹55000 at 10% per year for 1 year, compounded every year (in ₹).
11. 11.A scooter is worth ₹9500. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
12. 12.Find the compound interest on ₹53600 at 5% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹28100 at 12% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹58100 at 20% per year for 2 years, compounded every year (in ₹).
15. 15.A town has 57600 people. The population grows by 25% every year. What will the population be after 2 years?
16. 16.What is the difference between the compound interest and the simple interest on ₹42500 at 12% per year for 2 years (in ₹)?
17. 17.A scooter is worth ₹25500. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
18. 18.Find the compound interest on ₹40400 at 5% per year for 2 years, compounded every year (in ₹).
19. 19.What amount will ₹42500 grow to in 1 year at 8% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹55200 at 20% per year for 2 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹50000 at 12% per year for 2 years, compounded every year (in ₹).
23. 23.A town has 43500 people. The population grows by 25% every year. What will the population be after 1 year?
24. 24.Find the compound interest on ₹34400 at 10% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹58000 grow to in 3 years at 10% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹11600 at 25% per year for 2 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹44200 at 10% per year for 2 years, compounded every year (in ₹).
28. 28.A town has 55000 people. The population grows by 8% every year. What will the population be after 2 years?
29. 29.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹6400 at 25% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹21200 at 5% per year for 2 years, compounded every year (in ₹).
32. 32.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹2200 at 10% per year for 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹54900 at 20% per year for 2 years (in ₹)?
35. 35.A town has 26700 people. The population grows by 4% every year. What will the population be after 1 year?
36. 36.What is the difference between the compound interest and the simple interest on ₹24000 at 25% per year for 2 years (in ₹)?
37. 37.A town has 17500 people. The population grows by 8% every year. What will the population be after 2 years?
38. 38.What amount will ₹15900 grow to in 1 year at 8% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹22800 at 15% per year for 2 years (in ₹)?
40. 40.What amount will ₹19200 grow to in 1 year at 8% per year compound interest (in ₹)?

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