Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 45 · 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 ₹57500 at 8% per year for 2 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹55600 at 15% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹52500 at 4% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹6800 at 15% per year for 2 years (in ₹)?
5. 5.A scooter is worth ₹16500. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
6. 6.A scooter is worth ₹55000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
7. 7.A town has 25000 people. The population grows by 10% every year. What will the population be after 3 years?
8. 8.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹35200 at 12% per year for 1 year, compounded every year (in ₹).
11. 11.What amount will ₹11200 grow to in 3 years at 25% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
14. 14.A scooter is worth ₹21000. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹52500 at 4% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
17. 17.What amount will ₹19000 grow to in 3 years at 10% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹48800 at 15% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹51000 at 20% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹41500 grow to in 1 year at 10% per year compound interest (in ₹)?
21. 21.What amount will ₹45000 grow to in 2 years at 4% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹20000 at 10% per year for 3 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹49600 at 25% per year for 3 years, compounded every year (in ₹).
24. 24.What amount will ₹53800 grow to in 1 year at 25% per year compound interest (in ₹)?
25. 25.What amount will ₹30000 grow to in 2 years at 8% per year compound interest (in ₹)?
26. 26.What amount will ₹11200 grow to in 2 years at 5% per year compound interest (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹6100 at 4% per year for 1 year, compounded every year (in ₹).
29. 29.Find the compound interest on ₹56800 at 25% per year for 2 years, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
31. 31.What amount will ₹29500 grow to in 1 year at 25% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹28400 at 25% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹53000 at 10% per year for 3 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹9200 at 10% per year for 2 years, compounded every year (in ₹).
36. 36.What amount will ₹2500 grow to in 2 years at 12% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹11400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
39. 39.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
40. 40.What amount will ₹55000 grow to in 2 years at 8% per year compound interest (in ₹)?

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