Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 676 · 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 is the difference between the compound interest and the simple interest on ₹8000 at 5% per year for 2 years (in ₹)?
2. 2.A scooter is worth ₹29000. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
3. 3.What amount will ₹4500 grow to in 1 year at 10% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹50000 at 10% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹20800 at 25% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹4800 grow to in 2 years at 15% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹23500 at 12% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹54400 at 20% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹22800 at 15% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹43400 at 12% per year for 1 year, compounded every year (in ₹).
11. 11.Find the compound interest on ₹18000 at 15% per year for 2 years, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹45000 at 12% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹59200 at 15% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
15. 15.A town has 11200 people. The population grows by 25% every year. What will the population be after 3 years?
16. 16.What amount will ₹56100 grow to in 1 year at 4% per year compound interest (in ₹)?
17. 17.What amount will ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹26400 at 5% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹20000 at 12% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹49000 grow to in 2 years at 10% per year compound interest (in ₹)?
21. 21.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
22. 22.A town has 37500 people. The population grows by 4% every year. What will the population be after 2 years?
23. 23.Find the compound interest on ₹40100 at 4% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹19200 at 5% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹54300 at 20% per year for 2 years, compounded every year (in ₹).
28. 28.What amount will ₹2400 grow to in 2 years at 25% per year compound interest (in ₹)?
29. 29.A town has 13200 people. The population grows by 20% every year. What will the population be after 2 years?
30. 30.What amount will ₹22200 grow to in 1 year at 15% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹14000 at 15% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹27500 at 12% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹44900 at 20% per year for 1 year, compounded every year (in ₹).
37. 37.Find the compound interest on ₹28400 at 15% per year for 2 years, compounded every year (in ₹).
38. 38.A town has 56000 people. The population grows by 15% every year. What will the population be after 3 years?
39. 39.What amount will ₹49400 grow to in 1 year at 5% per year compound interest (in ₹)?
40. 40.A town has 42800 people. The population grows by 5% every year. What will the population be after 2 years?

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