Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 703 · 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 ₹26300 at 20% per year for 2 years (in ₹)?
2. 2.What amount will ₹53500 grow to in 1 year at 8% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹21700 at 20% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹19000 at 10% per year for 2 years (in ₹)?
5. 5.A scooter is worth ₹34400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
6. 6.A town has 7000 people. The population grows by 25% every year. What will the population be after 1 year?
7. 7.What is the difference between the compound interest and the simple interest on ₹53200 at 15% per year for 2 years (in ₹)?
8. 8.What amount will ₹50800 grow to in 2 years at 25% per year compound interest (in ₹)?
9. 9.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
10. 10.What amount will ₹22300 grow to in 1 year at 20% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹25200 at 15% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹42400 at 10% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹55600 at 15% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹49000 at 10% per year for 3 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹42800 at 15% per year for 1 year, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
18. 18.What amount will ₹18600 grow to in 1 year at 4% per year compound interest (in ₹)?
19. 19.A town has 34300 people. The population grows by 10% every year. What will the population be after 1 year?
20. 20.What amount will ₹47400 grow to in 1 year at 8% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹18000 at 10% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹27900 at 20% per year for 2 years (in ₹)?
24. 24.A town has 9200 people. The population grows by 15% every year. What will the population be after 2 years?
25. 25.What is the difference between the compound interest and the simple interest on ₹10300 at 20% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹10000 at 8% per year for 2 years, compounded every year (in ₹).
27. 27.A town has 47600 people. The population grows by 10% every year. What will the population be after 2 years?
28. 28.Find the compound interest on ₹29500 at 10% per year for 1 year, compounded every year (in ₹).
29. 29.A scooter is worth ₹30000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
30. 30.A scooter is worth ₹16500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
31. 31.Find the compound interest on ₹15400 at 12% per year for 1 year, compounded every year (in ₹).
32. 32.A town has 48000 people. The population grows by 5% every year. What will the population be after 1 year?
33. 33.Find the compound interest on ₹35600 at 5% per year for 2 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹23100 at 15% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹11400 at 25% per year for 1 year, compounded every year (in ₹).
36. 36.Find the compound interest on ₹25000 at 12% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹21000 at 20% per year for 2 years (in ₹)?
39. 39.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹20700 at 5% per year for 1 year, compounded every year (in ₹).

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