Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 416 · 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 ₹12500 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 ₹52500 at 8% per year for 2 years (in ₹)?
3. 3.A town has 47500 people. The population grows by 8% every year. What will the population be after 2 years?
4. 4.Find the compound interest on ₹26500 at 10% per year for 2 years, compounded every year (in ₹).
5. 5.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
6. 6.A town has 17600 people. The population grows by 25% every year. What will the population be after 3 years?
7. 7.What amount will ₹12100 grow to in 1 year at 15% per year compound interest (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹29200 at 15% per year for 2 years (in ₹)?
9. 9.What amount will ₹33700 grow to in 1 year at 5% per year compound interest (in ₹)?
10. 10.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹12400. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
12. 12.Find the compound interest on ₹59000 at 10% per year for 3 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹5600 at 25% per year for 2 years (in ₹)?
14. 14.A scooter is worth ₹10400. 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 ₹2400 at 25% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹18400. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
17. 17.A town has 8000 people. The population grows by 5% every year. What will the population be after 3 years?
18. 18.What amount will ₹17200 grow to in 2 years at 15% per year compound interest (in ₹)?
19. 19.A scooter is worth ₹18700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹22000 at 10% per year for 2 years (in ₹)?
23. 23.What amount will ₹56000 grow to in 3 years at 25% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹24100 at 20% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹53500 grow to in 1 year at 10% per year compound interest (in ₹)?
26. 26.What amount will ₹44000 grow to in 1 year at 8% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹59000 at 8% per year for 1 year, compounded every year (in ₹).
28. 28.Find the compound interest on ₹14500 at 20% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹4000 grow to in 2 years at 5% per year compound interest (in ₹)?
30. 30.What amount will ₹48000 grow to in 1 year at 4% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹52600 at 8% per year for 1 year, compounded every year (in ₹).
33. 33.What amount will ₹31600 grow to in 1 year at 5% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹7100 at 10% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹5000 at 10% per year for 3 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
38. 38.A town has 40000 people. The population grows by 5% every year. What will the population be after 3 years?
39. 39.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
40. 40.What amount will ₹49600 grow to in 1 year at 12% per year compound interest (in ₹)?

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