Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 476 · 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 ₹57800 at 20% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹37700 at 25% per year for 1 year, compounded every year (in ₹).
3. 3.A scooter is worth ₹2700. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹13200 at 5% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹7200 at 5% per year for 2 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹19300 at 15% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹7900 at 20% per year for 2 years (in ₹)?
11. 11.A town has 5000 people. The population grows by 4% every year. What will the population be after 2 years?
12. 12.Find the compound interest on ₹12500 at 8% per year for 1 year, compounded every year (in ₹).
13. 13.A town has 2300 people. The population grows by 4% every year. What will the population be after 1 year?
14. 14.Find the compound interest on ₹46400 at 12% per year for 1 year, compounded every year (in ₹).
15. 15.Find the compound interest on ₹36700 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹59600 at 15% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹47500 at 8% per year for 2 years, compounded every year (in ₹).
19. 19.What amount will ₹2900 grow to in 1 year at 10% per year compound interest (in ₹)?
20. 20.What amount will ₹33500 grow to in 3 years at 20% per year compound interest (in ₹)?
21. 21.A scooter is worth ₹31100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹55900 at 10% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹18000 at 12% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹54000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
26. 26.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
27. 27.What amount will ₹14400 grow to in 2 years at 25% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹33100 at 20% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹27900 grow to in 1 year at 15% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹49200 at 4% per year for 1 year, compounded every year (in ₹).
31. 31.What amount will ₹46400 grow to in 1 year at 10% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹60000 at 4% per year for 2 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹23000 at 10% per year for 3 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹34200 at 10% per year for 1 year, compounded every year (in ₹).
35. 35.What amount will ₹51200 grow to in 3 years at 25% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹21700 at 10% per year for 2 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹19700 at 5% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
40. 40.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?

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