Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 543 · 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 5% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹55700 at 20% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹14000 at 15% per year for 2 years (in ₹)?
6. 6.A scooter is worth ₹27700. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
7. 7.A scooter is worth ₹52900. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
8. 8.A town has 45200 people. The population grows by 25% every year. What will the population be after 2 years?
9. 9.Find the compound interest on ₹48800 at 10% per year for 2 years, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹9200 at 5% per year for 2 years (in ₹)?
11. 11.What amount will ₹48800 grow to in 2 years at 15% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹7200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
16. 16.What amount will ₹33400 grow to in 2 years at 20% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
18. 18.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
19. 19.A scooter is worth ₹22500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹52400 at 5% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹16400 at 25% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹4900 grow to in 2 years at 10% per year compound interest (in ₹)?
23. 23.A scooter is worth ₹42500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
24. 24.What amount will ₹9000 grow to in 3 years at 10% per year compound interest (in ₹)?
25. 25.What amount will ₹13000 grow to in 1 year at 20% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹6200 at 20% per year for 2 years (in ₹)?
29. 29.What amount will ₹18500 grow to in 2 years at 20% per year compound interest (in ₹)?
30. 30.A town has 24000 people. The population grows by 5% every year. What will the population be after 2 years?
31. 31.A town has 56000 people. The population grows by 15% every year. What will the population be after 3 years?
32. 32.Find the compound interest on ₹50700 at 10% per year for 1 year, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹39200 at 15% per year for 2 years (in ₹)?
34. 34.What amount will ₹42900 grow to in 1 year at 8% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹22000 at 10% per year for 3 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹18500 at 20% per year for 2 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹36600 at 10% per year for 2 years (in ₹)?
38. 38.What amount will ₹10100 grow to in 1 year at 15% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹7500 at 4% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹49600 at 5% per year for 2 years (in ₹)?

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