Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 778 · 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 ₹30500 at 8% per year for 1 year, compounded every year (in ₹).
2. 2.A scooter is worth ₹57500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
3. 3.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
4. 4.What amount will ₹50500 grow to in 1 year at 5% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹38400 at 5% per year for 2 years (in ₹)?
6. 6.What amount will ₹9600 grow to in 2 years at 15% per year compound interest (in ₹)?
7. 7.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
8. 8.What amount will ₹59000 grow to in 3 years at 20% per year compound interest (in ₹)?
9. 9.What amount will ₹35600 grow to in 2 years at 5% per year compound interest (in ₹)?
10. 10.A town has 53700 people. The population grows by 10% every year. What will the population be after 2 years?
11. 11.What amount will ₹2900 grow to in 1 year at 20% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹36800 at 25% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹33200 at 5% per year for 2 years (in ₹)?
15. 15.What amount will ₹49600 grow to in 2 years at 25% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹32700 at 20% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹21200 at 20% per year for 1 year, compounded every year (in ₹).
18. 18.Find the compound interest on ₹45000 at 4% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹56000 at 5% per year for 2 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹19200 at 15% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹55200 at 25% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹25200 at 5% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹35000 at 8% per year for 2 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹56800 at 25% per year for 2 years, compounded every year (in ₹).
26. 26.What amount will ₹33000 grow to in 3 years at 10% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹14800 at 15% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹35000 at 10% per year for 2 years (in ₹)?
29. 29.What amount will ₹58400 grow to in 2 years at 15% per year compound interest (in ₹)?
30. 30.What amount will ₹30000 grow to in 2 years at 4% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹50400 at 25% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹26700 at 12% per year for 1 year, compounded every year (in ₹).
33. 33.What amount will ₹9600 grow to in 1 year at 20% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹31200 at 8% per year for 1 year, compounded every year (in ₹).
35. 35.What amount will ₹27600 grow to in 2 years at 15% per year compound interest (in ₹)?
36. 36.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹15300. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
38. 38.What amount will ₹32000 grow to in 2 years at 15% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹22000 at 25% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹58000 at 10% per year for 3 years, compounded every year (in ₹).

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