Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 202 · 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 ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
2. 2.A scooter is worth ₹20800. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
3. 3.A town has 53100 people. The population grows by 20% every year. What will the population be after 2 years?
4. 4.What amount will ₹41800 grow to in 1 year at 12% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹19600 at 15% per year for 2 years (in ₹)?
6. 6.A town has 34700 people. The population grows by 5% every year. What will the population be after 1 year?
7. 7.Find the compound interest on ₹28700 at 4% per year for 1 year, compounded every year (in ₹).
8. 8.A town has 3500 people. The population grows by 12% every year. What will the population be after 1 year?
9. 9.What is the difference between the compound interest and the simple interest on ₹35200 at 5% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹38400 at 5% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹22900 at 20% per year for 1 year, compounded every year (in ₹).
12. 12.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
13. 13.What amount will ₹51200 grow to in 1 year at 10% per year compound interest (in ₹)?
14. 14.What amount will ₹9500 grow to in 1 year at 8% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹53600 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹51200 at 5% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹5500 at 10% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹30000 at 5% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹5800 at 15% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹52900 at 4% per year for 1 year, compounded every year (in ₹).
22. 22.A scooter is worth ₹13500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
23. 23.Find the compound interest on ₹31900 at 20% per year for 1 year, compounded every year (in ₹).
24. 24.Find the compound interest on ₹12000 at 15% per year for 2 years, compounded every year (in ₹).
25. 25.What amount will ₹57500 grow to in 2 years at 12% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹22800. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
27. 27.Find the compound interest on ₹56000 at 25% per year for 3 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹41000 at 10% per year for 3 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹34400 at 15% per year for 2 years, compounded every year (in ₹).
30. 30.A town has 2900 people. The population grows by 10% every year. What will the population be after 2 years?
31. 31.What is the difference between the compound interest and the simple interest on ₹3200 at 5% per year for 2 years (in ₹)?
32. 32.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
33. 33.A scooter is worth ₹43700. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹19500 at 15% per year for 1 year, compounded every year (in ₹).
36. 36.What amount will ₹47100 grow to in 2 years at 20% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹15500 at 20% per year for 2 years, compounded every year (in ₹).
38. 38.A scooter is worth ₹18400. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹44000 at 25% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹20000 at 12% per year for 2 years (in ₹)?

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