Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 308 · 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 ₹60000 at 4% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹23300 at 10% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
5. 5.What amount will ₹36800 grow to in 3 years at 25% per year compound interest (in ₹)?
6. 6.What amount will ₹15300 grow to in 2 years at 20% per year compound interest (in ₹)?
7. 7.What amount will ₹20600 grow to in 1 year at 20% per year compound interest (in ₹)?
8. 8.What amount will ₹54000 grow to in 3 years at 10% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹9600 at 25% per year for 1 year, compounded every year (in ₹).
11. 11.A scooter is worth ₹56600. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹33200 at 20% per year for 2 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹56400 at 25% per year for 2 years (in ₹)?
14. 14.What amount will ₹9600 grow to in 3 years at 25% per year compound interest (in ₹)?
15. 15.A town has 17600 people. The population grows by 10% every year. What will the population be after 1 year?
16. 16.What amount will ₹47500 grow to in 2 years at 4% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹37500 at 12% per year for 2 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
19. 19.What amount will ₹25000 grow to in 2 years at 12% per year compound interest (in ₹)?
20. 20.What amount will ₹20800 grow to in 2 years at 25% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹47500 at 10% per year for 2 years (in ₹)?
22. 22.A town has 18900 people. The population grows by 10% every year. What will the population be after 1 year?
23. 23.Find the compound interest on ₹54400 at 25% per year for 2 years, compounded every year (in ₹).
24. 24.A scooter is worth ₹52200. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹22200 at 20% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹48100 at 15% per year for 1 year, compounded every year (in ₹).
27. 27.A town has 8000 people. The population grows by 5% every year. What will the population be after 3 years?
28. 28.Find the compound interest on ₹24200 at 8% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹45700 grow to in 2 years at 10% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹24000 at 20% per year for 1 year, compounded every year (in ₹).
31. 31.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
32. 32.What amount will ₹7200 grow to in 2 years at 25% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹12700 at 10% per year for 2 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹43700 at 10% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹51400 at 10% per year for 2 years (in ₹)?
36. 36.A scooter is worth ₹3200. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
37. 37.What amount will ₹46700 grow to in 1 year at 20% per year compound interest (in ₹)?
38. 38.A town has 58300 people. The population grows by 5% every year. What will the population be after 1 year?
39. 39.What is the difference between the compound interest and the simple interest on ₹58800 at 15% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?

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