Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 518 · 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 ₹42200 at 10% per year for 2 years, compounded every year (in ₹).
2. 2.What amount will ₹36100 grow to in 1 year at 5% per year compound interest (in ₹)?
3. 3.What amount will ₹56000 grow to in 1 year at 8% per year compound interest (in ₹)?
4. 4.What amount will ₹17500 grow to in 2 years at 12% per year compound interest (in ₹)?
5. 5.A scooter is worth ₹10600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
6. 6.Find the compound interest on ₹8500 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
8. 8.What amount will ₹10600 grow to in 1 year at 12% per year compound interest (in ₹)?
9. 9.What amount will ₹18700 grow to in 1 year at 4% per year compound interest (in ₹)?
10. 10.What amount will ₹41600 grow to in 1 year at 12% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹7200 at 20% per year for 2 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹29900 at 10% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
15. 15.What amount will ₹38400 grow to in 3 years at 25% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹36800 at 8% per year for 1 year, compounded every year (in ₹).
18. 18.A scooter is worth ₹20200. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
19. 19.Find the compound interest on ₹5000 at 10% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹56600 grow to in 1 year at 15% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹28600 at 10% per year for 2 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹20400 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.A scooter is worth ₹55100. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
24. 24.A scooter is worth ₹3600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹29000 at 10% per year for 3 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹16900 at 10% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹56600 at 10% per year for 2 years (in ₹)?
29. 29.What amount will ₹13600 grow to in 2 years at 25% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹25300 at 25% per year for 1 year, compounded every year (in ₹).
31. 31.A scooter is worth ₹5500. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
32. 32.Find the compound interest on ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹49600 grow to in 3 years at 25% per year compound interest (in ₹)?
34. 34.What amount will ₹31100 grow to in 1 year at 4% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹52500 at 12% per year for 2 years (in ₹)?
36. 36.What amount will ₹35000 grow to in 2 years at 12% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹24100. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
38. 38.What amount will ₹10500 grow to in 3 years at 20% per year compound interest (in ₹)?
39. 39.What amount will ₹48500 grow to in 3 years at 20% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?

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