Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 7 · 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 is the difference between the compound interest and the simple interest on ₹17500 at 12% per year for 2 years (in ₹)?
2. 2.What amount will ₹16300 grow to in 2 years at 10% per year compound interest (in ₹)?
3. 3.A scooter is worth ₹10300. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
4. 4.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹2900 at 10% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹21200 at 4% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹27300 grow to in 2 years at 20% per year compound interest (in ₹)?
9. 9.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹2400 at 8% per year for 1 year, compounded every year (in ₹).
11. 11.A scooter is worth ₹37500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
12. 12.Find the compound interest on ₹20500 at 20% per year for 3 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹7500 at 12% per year for 2 years, compounded every year (in ₹).
14. 14.What amount will ₹17300 grow to in 2 years at 10% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹30600 at 20% per year for 2 years (in ₹)?
16. 16.A town has 10000 people. The population grows by 12% every year. What will the population be after 2 years?
17. 17.Find the compound interest on ₹16000 at 25% per year for 3 years, compounded every year (in ₹).
18. 18.A scooter is worth ₹27500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
19. 19.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
20. 20.Find the compound interest on ₹32500 at 8% per year for 2 years, compounded every year (in ₹).
21. 21.A town has 44800 people. The population grows by 25% every year. What will the population be after 2 years?
22. 22.Find the compound interest on ₹9600 at 20% per year for 2 years, compounded every year (in ₹).
23. 23.What amount will ₹40500 grow to in 3 years at 20% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹55300 at 20% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹47100 at 12% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹39500 at 8% per year for 1 year, compounded every year (in ₹).
27. 27.What amount will ₹38800 grow to in 1 year at 5% per year compound interest (in ₹)?
28. 28.What amount will ₹54400 grow to in 1 year at 10% per year compound interest (in ₹)?
29. 29.What amount will ₹6100 grow to in 1 year at 4% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹20400 at 10% per year for 2 years, compounded every year (in ₹).
31. 31.What amount will ₹17000 grow to in 3 years at 10% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹22500 at 8% per year for 2 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹43600 at 5% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹31500 at 10% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹9200 at 15% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹14400 at 4% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹30900 at 10% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹32400 at 5% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?

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