Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 829 · 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 amount will ₹41300 grow to in 1 year at 25% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹32500 at 8% per year for 2 years (in ₹)?
3. 3.What amount will ₹41200 grow to in 1 year at 5% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹18800 at 15% per year for 2 years, compounded every year (in ₹).
5. 5.What amount will ₹9600 grow to in 3 years at 25% per year compound interest (in ₹)?
6. 6.A scooter is worth ₹13400. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
7. 7.What amount will ₹56300 grow to in 1 year at 5% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹56000 at 5% per year for 1 year, compounded every year (in ₹).
9. 9.A scooter is worth ₹32000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
10. 10.Find the compound interest on ₹22500 at 20% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹14100 at 12% per year for 1 year, compounded every year (in ₹).
12. 12.What amount will ₹42500 grow to in 2 years at 8% per year compound interest (in ₹)?
13. 13.A town has 40000 people. The population grows by 10% every year. What will the population be after 3 years?
14. 14.What amount will ₹31800 grow to in 2 years at 10% per year compound interest (in ₹)?
15. 15.What amount will ₹42200 grow to in 1 year at 10% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹41300 at 5% per year for 1 year, compounded every year (in ₹).
18. 18.A scooter is worth ₹30400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹5400 at 20% per year for 2 years, compounded every year (in ₹).
21. 21.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹36400 at 10% per year for 2 years (in ₹)?
23. 23.A town has 29000 people. The population grows by 20% every year. What will the population be after 3 years?
24. 24.Find the compound interest on ₹56100 at 25% per year for 1 year, compounded every year (in ₹).
25. 25.A town has 57200 people. The population grows by 10% every year. What will the population be after 1 year?
26. 26.What is the difference between the compound interest and the simple interest on ₹11300 at 20% per year for 2 years (in ₹)?
27. 27.What amount will ₹20000 grow to in 2 years at 12% per year compound interest (in ₹)?
28. 28.A town has 3500 people. The population grows by 10% every year. What will the population be after 2 years?
29. 29.What is the difference between the compound interest and the simple interest on ₹24000 at 5% per year for 2 years (in ₹)?
30. 30.What amount will ₹32200 grow to in 2 years at 10% per year compound interest (in ₹)?
31. 31.What amount will ₹44800 grow to in 3 years at 25% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹23200 at 25% per year for 2 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
34. 34.What amount will ₹31600 grow to in 2 years at 25% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹49600 at 15% per year for 2 years, compounded every year (in ₹).
36. 36.What amount will ₹6200 grow to in 2 years at 10% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹42500 at 20% per year for 3 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
39. 39.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹12500 at 20% per year for 3 years, compounded every year (in ₹).

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