Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 981 · 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 ₹59000 grow to in 3 years at 10% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?
3. 3.What amount will ₹39400 grow to in 1 year at 25% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹59500 at 20% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹36000 at 10% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹36000 grow to in 1 year at 10% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹58800 at 25% per year for 2 years, compounded every year (in ₹).
8. 8.A town has 49500 people. The population grows by 20% every year. What will the population be after 3 years?
9. 9.What amount will ₹13500 grow to in 1 year at 10% per year compound interest (in ₹)?
10. 10.What amount will ₹45000 grow to in 2 years at 8% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹31200 at 5% per year for 2 years (in ₹)?
12. 12.A scooter is worth ₹25000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
13. 13.What amount will ₹35600 grow to in 1 year at 20% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹19500. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
16. 16.What amount will ₹39000 grow to in 1 year at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹49000 at 10% per year for 3 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹50000 at 4% per year for 2 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹10800 at 25% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
21. 21.What amount will ₹47600 grow to in 1 year at 4% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹11500 at 20% per year for 3 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹3500 at 10% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹11600 at 10% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹37400 at 10% per year for 2 years (in ₹)?
27. 27.A town has 8000 people. The population grows by 25% every year. What will the population be after 3 years?
28. 28.Find the compound interest on ₹18000 at 25% per year for 2 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹30000 at 12% per year for 2 years (in ₹)?
30. 30.What amount will ₹15000 grow to in 2 years at 4% per year compound interest (in ₹)?
31. 31.A town has 27000 people. The population grows by 20% every year. What will the population be after 1 year?
32. 32.A scooter is worth ₹14400. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
33. 33.What amount will ₹6000 grow to in 2 years at 15% per year compound interest (in ₹)?
34. 34.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹42400 at 10% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹5200 at 8% per year for 1 year, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹27800 at 10% per year for 2 years (in ₹)?
39. 39.A town has 35000 people. The population grows by 8% every year. What will the population be after 2 years?
40. 40.Find the compound interest on ₹46000 at 10% per year for 3 years, compounded every year (in ₹).

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