Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 650 · 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 ₹37500 at 8% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹5000 at 8% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
4. 4.A scooter is worth ₹32000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
5. 5.A town has 39800 people. The population grows by 5% every year. What will the population be after 1 year?
6. 6.A scooter is worth ₹3600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
7. 7.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
8. 8.What amount will ₹41200 grow to in 2 years at 5% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹54000 at 5% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹17200 at 20% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹47900 at 10% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹18900 at 20% per year for 2 years (in ₹)?
14. 14.A scooter is worth ₹12400. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
15. 15.A town has 41400 people. The population grows by 20% every year. What will the population be after 1 year?
16. 16.What amount will ₹52800 grow to in 3 years at 25% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹13700 at 4% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹57800 at 20% per year for 2 years (in ₹)?
19. 19.A town has 22800 people. The population grows by 5% every year. What will the population be after 2 years?
20. 20.What amount will ₹15000 grow to in 3 years at 10% per year compound interest (in ₹)?
21. 21.A scooter is worth ₹56800. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹5200 at 5% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹42900 at 20% per year for 2 years (in ₹)?
24. 24.What amount will ₹2000 grow to in 2 years at 25% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹55000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
26. 26.A scooter is worth ₹26500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
27. 27.Find the compound interest on ₹42300 at 12% per year for 1 year, compounded every year (in ₹).
28. 28.Find the compound interest on ₹13600 at 15% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹25000 grow to in 2 years at 8% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹56000 at 5% per year for 2 years (in ₹)?
32. 32.What amount will ₹58000 grow to in 2 years at 5% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹51300 at 15% per year for 1 year, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹6800 at 5% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹58000 at 25% per year for 2 years (in ₹)?
36. 36.What amount will ₹27000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.What amount will ₹47500 grow to in 2 years at 8% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹58400 at 15% per year for 2 years, compounded every year (in ₹).
39. 39.What amount will ₹55400 grow to in 1 year at 10% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹20600 at 10% per year for 2 years (in ₹)?

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