Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 33 · 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 ₹5000 at 4% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
4. 4.What amount will ₹50300 grow to in 1 year at 8% per year compound interest (in ₹)?
5. 5.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹17800 at 20% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹53700. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
8. 8.A scooter is worth ₹2700. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
9. 9.Find the compound interest on ₹32500 at 8% per year for 2 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹35000 at 4% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹59000 at 10% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹25200 grow to in 1 year at 5% per year compound interest (in ₹)?
13. 13.A town has 9500 people. The population grows by 10% every year. What will the population be after 1 year?
14. 14.Find the compound interest on ₹39900 at 4% per year for 1 year, compounded every year (in ₹).
15. 15.A scooter is worth ₹30200. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
16. 16.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
17. 17.Find the compound interest on ₹39200 at 25% per year for 2 years, compounded every year (in ₹).
18. 18.A scooter is worth ₹20800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
19. 19.Find the compound interest on ₹17500 at 8% per year for 1 year, compounded every year (in ₹).
20. 20.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
21. 21.A scooter is worth ₹10000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
22. 22.A town has 4300 people. The population grows by 12% every year. What will the population be after 1 year?
23. 23.A scooter is worth ₹40000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹22800 at 10% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹47600 at 25% per year for 2 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
27. 27.A town has 49000 people. The population grows by 12% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹4000 at 5% per year for 2 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹38800 at 20% per year for 2 years (in ₹)?
30. 30.A town has 17600 people. The population grows by 25% every year. What will the population be after 3 years?
31. 31.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹36900 at 10% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
34. 34.A scooter is worth ₹34900. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
35. 35.A scooter is worth ₹14900. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
36. 36.What amount will ₹5000 grow to in 2 years at 12% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
38. 38.A scooter is worth ₹48900. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
39. 39.A town has 12300 people. The population grows by 5% every year. What will the population be after 1 year?
40. 40.Find the compound interest on ₹32500 at 4% per year for 2 years, compounded every year (in ₹).

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