Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 612 · 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 ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
2. 2.What amount will ₹58900 grow to in 2 years at 20% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹4300 at 20% per year for 2 years (in ₹)?
4. 4.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
5. 5.What amount will ₹22400 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.What amount will ₹14800 grow to in 1 year at 25% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹18100 at 4% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹6900 grow to in 1 year at 15% per year compound interest (in ₹)?
10. 10.What amount will ₹32500 grow to in 2 years at 12% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹47500 at 8% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹50100 at 20% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹2400 at 10% per year for 2 years (in ₹)?
14. 14.What amount will ₹38500 grow to in 1 year at 8% per year compound interest (in ₹)?
15. 15.What amount will ₹17600 grow to in 2 years at 25% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹6000 at 20% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹48000 at 15% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹33900 at 15% per year for 1 year, compounded every year (in ₹).
19. 19.A scooter is worth ₹8400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
20. 20.What amount will ₹25000 grow to in 2 years at 12% per year compound interest (in ₹)?
21. 21.A scooter is worth ₹52500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹52500 at 4% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹40200 at 20% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
25. 25.What amount will ₹57300 grow to in 1 year at 4% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹43600 at 5% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹53200 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 ₹8700 at 10% per year for 2 years (in ₹)?
30. 30.A scooter is worth ₹57500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
31. 31.A town has 5600 people. The population grows by 15% every year. What will the population be after 2 years?
32. 32.A town has 27900 people. The population grows by 5% every year. What will the population be after 1 year?
33. 33.What is the difference between the compound interest and the simple interest on ₹55500 at 10% per year for 2 years (in ₹)?
34. 34.What amount will ₹54200 grow to in 1 year at 15% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹34800. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
36. 36.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹52500 at 12% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹40000 at 4% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹14000 at 5% per year for 2 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹15100 at 12% per year for 1 year, compounded every year (in ₹).

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