Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 317 · 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 ₹22000 at 25% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹45000 at 4% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹25500 at 20% per year for 2 years (in ₹)?
4. 4.A town has 33600 people. The population grows by 25% every year. What will the population be after 3 years?
5. 5.Find the compound interest on ₹29200 at 10% per year for 1 year, compounded every year (in ₹).
6. 6.Find the compound interest on ₹18400 at 20% per year for 2 years, compounded every year (in ₹).
7. 7.A scooter is worth ₹12700. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
8. 8.What amount will ₹58600 grow to in 1 year at 8% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹46100 at 8% per year for 1 year, compounded every year (in ₹).
10. 10.Find the compound interest on ₹16000 at 25% per year for 3 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹51200 at 25% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹40000 grow to in 3 years at 25% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹11000 at 20% per year for 3 years, compounded every year (in ₹).
14. 14.What amount will ₹17500 grow to in 3 years at 20% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹59600 at 25% per year for 2 years, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹33600 at 20% per year for 2 years (in ₹)?
18. 18.A town has 20000 people. The population grows by 4% every year. What will the population be after 2 years?
19. 19.Find the compound interest on ₹46400 at 5% per year for 2 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
21. 21.A town has 42900 people. The population grows by 10% every year. What will the population be after 1 year?
22. 22.Find the compound interest on ₹55000 at 4% per year for 2 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹46200 at 10% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹33600 at 8% per year for 1 year, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹2000 at 5% per year for 2 years (in ₹)?
26. 26.What amount will ₹38000 grow to in 1 year at 10% per year compound interest (in ₹)?
27. 27.A town has 47300 people. The population grows by 20% every year. What will the population be after 1 year?
28. 28.A scooter is worth ₹22300. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
29. 29.What amount will ₹12700 grow to in 1 year at 12% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹16000 at 5% per year for 2 years (in ₹)?
31. 31.A scooter is worth ₹59500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
32. 32.Find the compound interest on ₹55000 at 8% per year for 2 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹49500 at 20% per year for 3 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹10000 at 4% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
38. 38.What amount will ₹38400 grow to in 2 years at 10% per year compound interest (in ₹)?
39. 39.A town has 4000 people. The population grows by 5% every year. What will the population be after 2 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?

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