Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 601 · 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 ₹12000 at 5% per year for 2 years (in ₹)?
2. 2.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
4. 4.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
5. 5.A town has 7500 people. The population grows by 4% every year. What will the population be after 2 years?
6. 6.A scooter is worth ₹50000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹23900 at 20% per year for 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹57700 at 10% per year for 2 years (in ₹)?
9. 9.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
10. 10.A town has 35700 people. The population grows by 4% every year. What will the population be after 1 year?
11. 11.What amount will ₹40000 grow to in 3 years at 10% per year compound interest (in ₹)?
12. 12.What amount will ₹8700 grow to in 1 year at 15% per year compound interest (in ₹)?
13. 13.What amount will ₹19300 grow to in 1 year at 25% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹13700. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
15. 15.Find the compound interest on ₹14800 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.What amount will ₹37000 grow to in 3 years at 20% per year compound interest (in ₹)?
17. 17.A scooter is worth ₹42400. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹19200 at 5% per year for 2 years (in ₹)?
19. 19.What amount will ₹57500 grow to in 2 years at 12% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹35000 at 10% per year for 3 years, compounded every year (in ₹).
21. 21.What amount will ₹40000 grow to in 2 years at 8% per year compound interest (in ₹)?
22. 22.What amount will ₹54000 grow to in 2 years at 25% per year compound interest (in ₹)?
23. 23.What amount will ₹36900 grow to in 1 year at 10% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
25. 25.What amount will ₹32800 grow to in 1 year at 5% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹35000 at 4% per year for 2 years, compounded every year (in ₹).
27. 27.What amount will ₹19600 grow to in 2 years at 25% per year compound interest (in ₹)?
28. 28.A scooter is worth ₹2200. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
29. 29.What amount will ₹37500 grow to in 1 year at 10% per year compound interest (in ₹)?
30. 30.What amount will ₹15000 grow to in 3 years at 20% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹28100 at 5% per year for 1 year, compounded every year (in ₹).
32. 32.A town has 11600 people. The population grows by 25% every year. What will the population be after 2 years?
33. 33.A town has 2600 people. The population grows by 12% every year. What will the population be after 1 year?
34. 34.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹51200 at 25% per year for 3 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹51000 at 12% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹3100 at 12% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹17700 at 10% per year for 2 years, compounded every year (in ₹).

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