Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 481 · 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 ₹6800 at 25% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹5200 at 25% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?
4. 4.What amount will ₹40000 grow to in 3 years at 10% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹58700 at 20% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹57200 at 5% per year for 2 years, compounded every year (in ₹).
7. 7.What amount will ₹23700 grow to in 2 years at 10% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?
9. 9.A town has 22400 people. The population grows by 8% every year. What will the population be after 1 year?
10. 10.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
11. 11.What amount will ₹18800 grow to in 1 year at 5% per year compound interest (in ₹)?
12. 12.What amount will ₹2400 grow to in 2 years at 5% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹47200 at 12% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹30000 at 20% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹17200 at 15% per year for 2 years, compounded every year (in ₹).
16. 16.A town has 24000 people. The population grows by 15% every year. What will the population be after 3 years?
17. 17.Find the compound interest on ₹2500 at 4% per year for 2 years, compounded every year (in ₹).
18. 18.What amount will ₹32500 grow to in 3 years at 20% per year compound interest (in ₹)?
19. 19.A town has 56000 people. The population grows by 15% every year. What will the population be after 3 years?
20. 20.Find the compound interest on ₹23200 at 12% per year for 1 year, compounded every year (in ₹).
21. 21.A scooter is worth ₹17500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
22. 22.A scooter is worth ₹28400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹36800 at 15% per year for 2 years (in ₹)?
24. 24.A scooter is worth ₹16100. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
26. 26.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
27. 27.A town has 43000 people. The population grows by 10% every year. What will the population be after 3 years?
28. 28.A scooter is worth ₹34000. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
29. 29.Find the compound interest on ₹18400 at 12% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹18800 grow to in 2 years at 5% per year compound interest (in ₹)?
31. 31.A scooter is worth ₹15800. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹5600 at 25% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹29300 at 20% per year for 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹37200 at 5% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹46100 at 10% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹60000 at 10% per year for 3 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹45400 at 10% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹23400 at 10% per year for 2 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹38800 at 25% per year for 2 years (in ₹)?
40. 40.What amount will ₹15000 grow to in 1 year at 20% per year compound interest (in ₹)?

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