Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 566 · 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 ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹6300 at 20% per year for 2 years (in ₹)?
3. 3.What amount will ₹32400 grow to in 2 years at 10% per year compound interest (in ₹)?
4. 4.What amount will ₹23600 grow to in 2 years at 25% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹21900 at 10% per year for 1 year, compounded every year (in ₹).
6. 6.A scooter is worth ₹15200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
7. 7.A town has 43700 people. The population grows by 10% every year. What will the population be after 2 years?
8. 8.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹49600 at 25% per year for 3 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹22100 at 10% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹7000 at 15% per year for 1 year, compounded every year (in ₹).
12. 12.What amount will ₹56300 grow to in 1 year at 15% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
14. 14.What amount will ₹41000 grow to in 2 years at 10% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
16. 16.A town has 57000 people. The population grows by 10% every year. What will the population be after 3 years?
17. 17.What is the difference between the compound interest and the simple interest on ₹18700 at 10% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹25600 at 25% per year for 3 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹46200 at 20% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
23. 23.A scooter is worth ₹35000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
24. 24.What amount will ₹29900 grow to in 2 years at 10% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹45200 at 25% per year for 2 years (in ₹)?
26. 26.What amount will ₹31200 grow to in 2 years at 25% per year compound interest (in ₹)?
27. 27.A scooter is worth ₹34800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
28. 28.A scooter is worth ₹15000. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
29. 29.Find the compound interest on ₹44000 at 25% per year for 2 years, compounded every year (in ₹).
30. 30.Find the compound interest on ₹54200 at 8% per year for 1 year, compounded every year (in ₹).
31. 31.What amount will ₹36400 grow to in 2 years at 25% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
33. 33.What amount will ₹25500 grow to in 3 years at 20% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹31400 at 10% per year for 2 years (in ₹)?
35. 35.A town has 50000 people. The population grows by 4% every year. What will the population be after 2 years?
36. 36.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹10400 at 4% per year for 1 year, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹52500 at 12% per year for 2 years (in ₹)?
40. 40.What amount will ₹1600 grow to in 3 years at 25% per year compound interest (in ₹)?

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