Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 441 · 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.A town has 42300 people. The population grows by 15% every year. What will the population be after 1 year?
2. 2.What amount will ₹39000 grow to in 2 years at 10% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹18600 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹11800 at 10% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹52700 at 20% per year for 2 years, compounded every year (in ₹).
7. 7.What amount will ₹15000 grow to in 2 years at 8% per year compound interest (in ₹)?
8. 8.A town has 57400 people. The population grows by 20% every year. What will the population be after 2 years?
9. 9.What is the difference between the compound interest and the simple interest on ₹36000 at 25% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
11. 11.What amount will ₹56500 grow to in 1 year at 25% per year compound interest (in ₹)?
12. 12.What amount will ₹50000 grow to in 2 years at 12% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹41200 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 ₹9200 at 10% per year for 2 years (in ₹)?
15. 15.What amount will ₹55000 grow to in 2 years at 4% per year compound interest (in ₹)?
16. 16.What amount will ₹13100 grow to in 1 year at 15% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹6300 at 15% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹21600 at 25% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹50800 at 20% per year for 1 year, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹60000 at 4% per year for 2 years (in ₹)?
21. 21.A town has 12800 people. The population grows by 25% every year. What will the population be after 3 years?
22. 22.Find the compound interest on ₹25400 at 12% per year for 1 year, compounded every year (in ₹).
23. 23.Find the compound interest on ₹53600 at 10% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹2100 at 5% per year for 1 year, compounded every year (in ₹).
25. 25.Find the compound interest on ₹36800 at 25% per year for 3 years, compounded every year (in ₹).
26. 26.What amount will ₹12000 grow to in 2 years at 25% per year compound interest (in ₹)?
27. 27.A town has 42500 people. The population grows by 8% every year. What will the population be after 2 years?
28. 28.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
29. 29.A scooter is worth ₹28700. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
30. 30.Find the compound interest on ₹50500 at 8% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹47600 at 25% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹6200 at 20% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹14900 at 12% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹27200 at 5% per year for 2 years, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹56900 at 20% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹59200 at 25% per year for 2 years (in ₹)?
38. 38.A town has 6500 people. The population grows by 20% every year. What will the population be after 3 years?
39. 39.A town has 29800 people. The population grows by 8% every year. What will the population be after 1 year?
40. 40.What is the difference between the compound interest and the simple interest on ₹18000 at 25% per year for 2 years (in ₹)?

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets