Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 534 · 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.Find the compound interest on ₹3000 at 12% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹32000 at 25% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹47500 at 20% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹27400 at 10% per year for 2 years (in ₹)?
5. 5.What amount will ₹48300 grow to in 1 year at 4% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
7. 7.What amount will ₹56000 grow to in 1 year at 15% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹31200 at 25% per year for 1 year, compounded every year (in ₹).
9. 9.A town has 14400 people. The population grows by 10% every year. What will the population be after 2 years?
10. 10.What is the difference between the compound interest and the simple interest on ₹20400 at 25% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹30600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
12. 12.A town has 15000 people. The population grows by 8% every year. What will the population be after 2 years?
13. 13.What amount will ₹17900 grow to in 1 year at 20% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹28900. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
15. 15.Find the compound interest on ₹16000 at 25% per year for 3 years, compounded every year (in ₹).
16. 16.What amount will ₹52800 grow to in 2 years at 5% per year compound interest (in ₹)?
17. 17.What amount will ₹21600 grow to in 2 years at 15% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹3000 at 10% per year for 2 years (in ₹)?
19. 19.What amount will ₹50000 grow to in 2 years at 8% per year compound interest (in ₹)?
20. 20.A town has 42400 people. The population grows by 25% every year. What will the population be after 1 year?
21. 21.What amount will ₹10600 grow to in 2 years at 10% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹44800 at 10% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹17500 at 12% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹30000 at 5% per year for 2 years (in ₹)?
26. 26.A town has 16100 people. The population grows by 4% every year. What will the population be after 1 year?
27. 27.A scooter is worth ₹58600. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
28. 28.A town has 3500 people. The population grows by 20% every year. What will the population be after 3 years?
29. 29.A town has 18700 people. The population grows by 15% every year. What will the population be after 1 year?
30. 30.Find the compound interest on ₹12500 at 4% per year for 2 years, compounded every year (in ₹).
31. 31.What amount will ₹56900 grow to in 1 year at 5% per year compound interest (in ₹)?
32. 32.A scooter is worth ₹59200. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
33. 33.A town has 57600 people. The population grows by 25% every year. What will the population be after 2 years?
34. 34.Find the compound interest on ₹36800 at 10% per year for 1 year, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹60000 at 15% per year for 2 years (in ₹)?
36. 36.A town has 24800 people. The population grows by 5% every year. What will the population be after 1 year?
37. 37.Find the compound interest on ₹55400 at 15% per year for 1 year, compounded every year (in ₹).
38. 38.What amount will ₹47500 grow to in 2 years at 12% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹43500 at 20% per year for 3 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?

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