Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 584 · 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 ₹50300 at 20% per year for 2 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹2500 at 10% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹22300 at 25% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹27000 grow to in 1 year at 12% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹49600 at 15% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹34800 at 5% per year for 2 years, compounded every year (in ₹).
8. 8.What amount will ₹54800 grow to in 2 years at 15% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹40600 at 10% per year for 2 years (in ₹)?
10. 10.A town has 9200 people. The population grows by 15% every year. What will the population be after 2 years?
11. 11.Find the compound interest on ₹8200 at 10% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹34500 at 5% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹20400 grow to in 2 years at 5% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
15. 15.A scooter is worth ₹58000. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹40000 at 8% per year for 2 years (in ₹)?
17. 17.A town has 6600 people. The population grows by 10% every year. What will the population be after 2 years?
18. 18.Find the compound interest on ₹30000 at 4% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹15300 at 12% per year for 1 year, compounded every year (in ₹).
20. 20.What amount will ₹54800 grow to in 1 year at 8% per year compound interest (in ₹)?
21. 21.What amount will ₹31000 grow to in 3 years at 10% per year compound interest (in ₹)?
22. 22.A scooter is worth ₹54300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
23. 23.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
24. 24.Find the compound interest on ₹29000 at 20% per year for 3 years, compounded every year (in ₹).
25. 25.What amount will ₹13000 grow to in 3 years at 10% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
28. 28.What amount will ₹12500 grow to in 2 years at 8% per year compound interest (in ₹)?
29. 29.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
30. 30.What amount will ₹25900 grow to in 2 years at 10% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹4400 at 20% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹60000 at 4% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹5400 grow to in 1 year at 10% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹48000 at 5% per year for 2 years, compounded every year (in ₹).
36. 36.A scooter is worth ₹44400. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
37. 37.What amount will ₹56700 grow to in 1 year at 5% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
39. 39.A scooter is worth ₹47900. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
40. 40.A town has 35000 people. The population grows by 12% every year. What will the population be after 2 years?

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