Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 935 · 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 ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹5000 at 15% per year for 1 year, compounded every year (in ₹).
3. 3.Find the compound interest on ₹14800 at 15% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹15200 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.What amount will ₹53200 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹47500 at 4% per year for 2 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹44000 at 20% per year for 2 years (in ₹)?
8. 8.A town has 7500 people. The population grows by 4% every year. What will the population be after 2 years?
9. 9.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹59800 at 20% per year for 1 year, compounded every year (in ₹).
11. 11.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
13. 13.A scooter is worth ₹21700. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
14. 14.Find the compound interest on ₹47500 at 12% per year for 2 years, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹38300 at 10% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹10600 at 8% per year for 1 year, compounded every year (in ₹).
17. 17.Find the compound interest on ₹32500 at 8% per year for 2 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
20. 20.A scooter is worth ₹5000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹20400 at 20% per year for 2 years (in ₹)?
22. 22.A town has 6300 people. The population grows by 25% every year. What will the population be after 1 year?
23. 23.Find the compound interest on ₹50500 at 20% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹2000 at 5% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹28800 at 5% per year for 2 years, compounded every year (in ₹).
26. 26.Find the compound interest on ₹14400 at 4% per year for 1 year, compounded every year (in ₹).
27. 27.A town has 22800 people. The population grows by 5% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
29. 29.What amount will ₹25000 grow to in 3 years at 20% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹13200 at 4% per year for 1 year, compounded every year (in ₹).
31. 31.Find the compound interest on ₹31600 at 15% per year for 2 years, compounded every year (in ₹).
32. 32.What amount will ₹18000 grow to in 2 years at 10% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹38000 at 12% per year for 1 year, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
36. 36.A scooter is worth ₹44000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹40800 at 5% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹11400 at 10% per year for 2 years (in ₹)?
39. 39.A scooter is worth ₹10200. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
40. 40.Find the compound interest on ₹16800 at 4% per year for 1 year, compounded every year (in ₹).

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