Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 667 · 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 ₹16000 grow to in 3 years at 10% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹3600 at 25% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹52500 at 4% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
5. 5.What amount will ₹50000 grow to in 1 year at 4% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹3600 at 10% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹50400 at 5% per year for 2 years, compounded every year (in ₹).
8. 8.What amount will ₹15800 grow to in 1 year at 10% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹12300 at 10% per year for 1 year, compounded every year (in ₹).
10. 10.What amount will ₹45000 grow to in 3 years at 20% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹53800 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹52000 at 10% per year for 3 years, compounded every year (in ₹).
13. 13.A town has 55800 people. The population grows by 15% every year. What will the population be after 1 year?
14. 14.What amount will ₹37900 grow to in 1 year at 15% per year compound interest (in ₹)?
15. 15.What amount will ₹15600 grow to in 1 year at 5% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
17. 17.What amount will ₹35200 grow to in 1 year at 20% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹2600 at 10% per year for 1 year, compounded every year (in ₹).
19. 19.A town has 28000 people. The population grows by 15% every year. What will the population be after 2 years?
20. 20.What amount will ₹48100 grow to in 1 year at 20% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹27600 at 20% per year for 2 years, compounded every year (in ₹).
22. 22.What amount will ₹18000 grow to in 2 years at 25% per year compound interest (in ₹)?
23. 23.What amount will ₹12500 grow to in 2 years at 12% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹36700 at 20% per year for 1 year, compounded every year (in ₹).
25. 25.A town has 58000 people. The population grows by 25% every year. What will the population be after 1 year?
26. 26.What amount will ₹53500 grow to in 1 year at 10% per year compound interest (in ₹)?
27. 27.A scooter is worth ₹2500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
28. 28.Find the compound interest on ₹44800 at 10% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹13400 grow to in 1 year at 5% per year compound interest (in ₹)?
30. 30.A town has 58400 people. The population grows by 20% every year. What will the population be after 2 years?
31. 31.What amount will ₹58800 grow to in 1 year at 8% per year compound interest (in ₹)?
32. 32.A scooter is worth ₹44400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
33. 33.A scooter is worth ₹21200. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
34. 34.What amount will ₹10800 grow to in 2 years at 15% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
36. 36.What amount will ₹47100 grow to in 1 year at 20% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹32900 at 10% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹20800 at 5% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹40500 at 20% per year for 1 year, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹28400 at 15% per year for 2 years (in ₹)?

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