Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 248 · 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 amount will ₹5000 grow to in 2 years at 12% per year compound interest (in ₹)?
3. 3.What amount will ₹4200 grow to in 2 years at 10% per year compound interest (in ₹)?
4. 4.What amount will ₹12500 grow to in 2 years at 8% per year compound interest (in ₹)?
5. 5.What amount will ₹2500 grow to in 2 years at 20% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹23500 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹36700 grow to in 1 year at 4% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹49200 at 10% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹60000 at 4% per year for 2 years (in ₹)?
10. 10.What amount will ₹15000 grow to in 2 years at 4% per year compound interest (in ₹)?
11. 11.What amount will ₹25900 grow to in 1 year at 20% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹27600 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.A town has 14100 people. The population grows by 20% every year. What will the population be after 1 year?
14. 14.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹44800 at 25% per year for 3 years, compounded every year (in ₹).
16. 16.What amount will ₹14000 grow to in 3 years at 10% per year compound interest (in ₹)?
17. 17.A scooter is worth ₹13000. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹28800 at 15% per year for 2 years (in ₹)?
19. 19.What amount will ₹28800 grow to in 2 years at 25% per year compound interest (in ₹)?
20. 20.A town has 10500 people. The population grows by 20% every year. What will the population be after 2 years?
21. 21.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹50700 at 10% per year for 2 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹50000 at 25% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹42700 at 20% per year for 2 years (in ₹)?
25. 25.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹30900 at 20% per year for 2 years, compounded every year (in ₹).
27. 27.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
28. 28.What amount will ₹34100 grow to in 1 year at 5% per year compound interest (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹57600 at 5% per year for 2 years (in ₹)?
30. 30.What amount will ₹33200 grow to in 2 years at 15% per year compound interest (in ₹)?
31. 31.A town has 37400 people. The population grows by 12% every year. What will the population be after 1 year?
32. 32.What amount will ₹50100 grow to in 1 year at 12% per year compound interest (in ₹)?
33. 33.A scooter is worth ₹25000. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹51300 at 10% per year for 1 year, compounded every year (in ₹).
36. 36.What amount will ₹31400 grow to in 2 years at 20% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹58400 at 20% per year for 1 year, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹18800 at 25% per year for 2 years (in ₹)?
40. 40.What amount will ₹48800 grow to in 2 years at 25% per year compound interest (in ₹)?

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