Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 439 · 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 amount will ₹15000 grow to in 2 years at 12% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹57500 at 25% per year for 1 year, compounded every year (in ₹).
3. 3.What amount will ₹25700 grow to in 1 year at 4% per year compound interest (in ₹)?
4. 4.A scooter is worth ₹40800. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹31200 at 15% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹23400 at 10% per year for 2 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?
8. 8.What amount will ₹47200 grow to in 2 years at 25% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹13600 at 25% per year for 2 years (in ₹)?
10. 10.A scooter is worth ₹10500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
11. 11.Find the compound interest on ₹30000 at 12% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹5200 at 25% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹14000 at 25% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹38900 at 20% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹30000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
17. 17.A scooter is worth ₹56400. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
18. 18.Find the compound interest on ₹24100 at 20% per year for 2 years, compounded every year (in ₹).
19. 19.A scooter is worth ₹38600. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
21. 21.What amount will ₹13600 grow to in 2 years at 25% per year compound interest (in ₹)?
22. 22.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
23. 23.A town has 22000 people. The population grows by 4% every year. What will the population be after 1 year?
24. 24.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹34000 at 25% per year for 2 years (in ₹)?
26. 26.A town has 57500 people. The population grows by 4% every year. What will the population be after 1 year?
27. 27.What is the difference between the compound interest and the simple interest on ₹5900 at 10% per year for 2 years (in ₹)?
28. 28.What amount will ₹52800 grow to in 3 years at 25% per year compound interest (in ₹)?
29. 29.A town has 2500 people. The population grows by 12% every year. What will the population be after 2 years?
30. 30.Find the compound interest on ₹40600 at 15% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹21300 at 10% per year for 2 years, compounded every year (in ₹).
32. 32.What amount will ₹47100 grow to in 1 year at 20% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹25800 at 20% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹27200 at 25% per year for 3 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹12700 at 4% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹12400 at 20% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹18400 grow to in 2 years at 25% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹60000 at 15% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹40800 at 5% per year for 2 years (in ₹)?
40. 40.A town has 8000 people. The population grows by 10% every year. What will the population be after 3 years?

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