Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 892 · 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.A town has 52500 people. The population grows by 8% every year. What will the population be after 2 years?
2. 2.A scooter is worth ₹27500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
3. 3.Find the compound interest on ₹20400 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹42500 grow to in 2 years at 12% per year compound interest (in ₹)?
5. 5.A scooter is worth ₹52500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹16000 at 5% per year for 2 years (in ₹)?
7. 7.What amount will ₹15500 grow to in 1 year at 20% per year compound interest (in ₹)?
8. 8.What amount will ₹43500 grow to in 3 years at 20% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹11200 at 15% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹32400 at 25% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹28400 at 15% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹44700 grow to in 1 year at 25% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹49400 at 10% per year for 2 years (in ₹)?
14. 14.What amount will ₹52500 grow to in 2 years at 12% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹20400 at 15% per year for 2 years, compounded every year (in ₹).
16. 16.A town has 13000 people. The population grows by 8% every year. What will the population be after 1 year?
17. 17.What is the difference between the compound interest and the simple interest on ₹59500 at 10% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹15500 at 20% per year for 3 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹32500 at 8% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹12500 at 8% per year for 2 years, compounded every year (in ₹).
21. 21.A scooter is worth ₹37000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
22. 22.A scooter is worth ₹40300. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
23. 23.What amount will ₹60000 grow to in 2 years at 15% per year compound interest (in ₹)?
24. 24.What amount will ₹13900 grow to in 1 year at 25% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹40000 at 25% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹2500 at 12% per year for 2 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹20000 at 12% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹13000 at 20% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
31. 31.What amount will ₹9600 grow to in 2 years at 10% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹52100 at 25% per year for 1 year, compounded every year (in ₹).
33. 33.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹36800 at 8% per year for 1 year, compounded every year (in ₹).
35. 35.What amount will ₹29300 grow to in 2 years at 10% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹8400 at 5% per year for 2 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹3600 at 5% per year for 2 years (in ₹)?
38. 38.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹10100 at 10% per year for 2 years (in ₹)?
40. 40.What amount will ₹12000 grow to in 1 year at 15% per year compound interest (in ₹)?

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