Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 587 · 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 amount will ₹16400 grow to in 1 year at 4% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹19600 at 25% per year for 2 years, compounded every year (in ₹).
3. 3.What amount will ₹44600 grow to in 2 years at 10% per year compound interest (in ₹)?
4. 4.What amount will ₹6000 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 ₹53400 at 10% per year for 2 years (in ₹)?
6. 6.A scooter is worth ₹32000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹46000 at 8% per year for 1 year, compounded every year (in ₹).
9. 9.A town has 16000 people. The population grows by 25% every year. What will the population be after 3 years?
10. 10.Find the compound interest on ₹38400 at 25% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹53000 at 10% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹53500 grow to in 3 years at 20% per year compound interest (in ₹)?
13. 13.A town has 20300 people. The population grows by 15% every year. What will the population be after 1 year?
14. 14.Find the compound interest on ₹43600 at 25% per year for 2 years, compounded every year (in ₹).
15. 15.A town has 51200 people. The population grows by 4% every year. What will the population be after 1 year?
16. 16.Find the compound interest on ₹18700 at 12% per year for 1 year, compounded every year (in ₹).
17. 17.What amount will ₹5000 grow to in 2 years at 8% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹30400 at 5% per year for 2 years, compounded every year (in ₹).
19. 19.A scooter is worth ₹56000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹35000 at 8% per year for 2 years (in ₹)?
21. 21.A town has 52400 people. The population grows by 5% every year. What will the population be after 2 years?
22. 22.What amount will ₹42400 grow to in 2 years at 15% per year compound interest (in ₹)?
23. 23.A scooter is worth ₹10000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
24. 24.Find the compound interest on ₹8000 at 15% per year for 3 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹51600 at 5% per year for 2 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹43600 at 5% per year for 1 year, compounded every year (in ₹).
28. 28.Find the compound interest on ₹50000 at 8% per year for 2 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹4900 at 20% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹38000 at 25% per year for 2 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹3700 at 4% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹16000 at 15% per year for 2 years, compounded every year (in ₹).
35. 35.Find the compound interest on ₹30000 at 25% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹51600 at 10% per year for 2 years, compounded every year (in ₹).
38. 38.A scooter is worth ₹47000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
40. 40.A scooter is worth ₹3600. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?

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