Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 863 · 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 ₹47400 at 12% per year for 1 year, compounded every year (in ₹).
2. 2.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹55100 at 10% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹42400 at 25% per year for 2 years (in ₹)?
5. 5.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹8400 at 25% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹48000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
8. 8.What amount will ₹57000 grow to in 3 years at 10% per year compound interest (in ₹)?
9. 9.What amount will ₹17500 grow to in 2 years at 12% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹27500 at 8% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹2300 at 12% per year for 1 year, compounded every year (in ₹).
12. 12.Find the compound interest on ₹25600 at 25% per year for 3 years, compounded every year (in ₹).
13. 13.A scooter is worth ₹42800. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
14. 14.Find the compound interest on ₹48000 at 5% per year for 1 year, compounded every year (in ₹).
15. 15.Find the compound interest on ₹55300 at 15% per year for 1 year, compounded every year (in ₹).
16. 16.A scooter is worth ₹47500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
17. 17.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
18. 18.A town has 12500 people. The population grows by 12% every year. What will the population be after 2 years?
19. 19.What amount will ₹12900 grow to in 1 year at 20% per year compound interest (in ₹)?
20. 20.A town has 26000 people. The population grows by 10% every year. What will the population be after 3 years?
21. 21.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹42600 at 4% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹36800 grow to in 1 year at 10% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹24000 at 25% per year for 2 years (in ₹)?
25. 25.What amount will ₹44200 grow to in 1 year at 8% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹14000 at 15% per year for 2 years (in ₹)?
27. 27.A town has 23300 people. The population grows by 5% every year. What will the population be after 1 year?
28. 28.A scooter is worth ₹10000. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
29. 29.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
30. 30.Find the compound interest on ₹4100 at 12% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹59100 at 10% per year for 2 years, compounded every year (in ₹).
32. 32.A scooter is worth ₹28200. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
33. 33.Find the compound interest on ₹55600 at 25% per year for 2 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
35. 35.What amount will ₹54800 grow to in 1 year at 10% per year compound interest (in ₹)?
36. 36.What amount will ₹27500 grow to in 2 years at 4% per year compound interest (in ₹)?
37. 37.What amount will ₹14000 grow to in 2 years at 5% per year compound interest (in ₹)?
38. 38.A town has 43900 people. The population grows by 12% every year. What will the population be after 1 year?
39. 39.A scooter is worth ₹7500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?

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