Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 828 · 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.A scooter is worth ₹32500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
3. 3.A scooter is worth ₹35200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹18400 at 5% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹32400 grow to in 1 year at 20% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹30300 at 8% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹32500 at 4% per year for 1 year, compounded every year (in ₹).
9. 9.A scooter is worth ₹16000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
10. 10.Find the compound interest on ₹17500 at 4% per year for 2 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹3600 at 15% per year for 2 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
13. 13.A town has 20900 people. The population grows by 8% every year. What will the population be after 1 year?
14. 14.Find the compound interest on ₹58400 at 25% per year for 2 years, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹25600 at 20% per year for 2 years (in ₹)?
16. 16.What amount will ₹27100 grow to in 1 year at 8% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹16100 at 10% per year for 2 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
20. 20.What amount will ₹19100 grow to in 1 year at 25% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹47800 at 10% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹54800 at 12% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹28200 at 20% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹28000 at 25% per year for 2 years (in ₹)?
27. 27.A town has 7600 people. The population grows by 20% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹37800 at 25% per year for 1 year, compounded every year (in ₹).
29. 29.A scooter is worth ₹20500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
30. 30.A town has 46900 people. The population grows by 10% every year. What will the population be after 1 year?
31. 31.What is the difference between the compound interest and the simple interest on ₹46000 at 5% per year for 2 years (in ₹)?
32. 32.What amount will ₹2500 grow to in 1 year at 4% per year compound interest (in ₹)?
33. 33.A town has 20000 people. The population grows by 8% every year. What will the population be after 2 years?
34. 34.What amount will ₹26800 grow to in 2 years at 15% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹20800 at 25% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹2100 at 20% per year for 2 years, compounded every year (in ₹).
37. 37.A scooter is worth ₹52400. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹14200 at 8% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹40000 grow to in 2 years at 12% per year compound interest (in ₹)?

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