Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 12 · 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 ₹44400 at 15% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹49700 at 20% per year for 2 years, compounded every year (in ₹).
3. 3.A town has 4200 people. The population grows by 25% every year. What will the population be after 1 year?
4. 4.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹27200 at 25% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹32000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
8. 8.Find the compound interest on ₹55100 at 20% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹37600 grow to in 2 years at 25% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹6400 at 20% per year for 2 years (in ₹)?
11. 11.What amount will ₹53200 grow to in 1 year at 10% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹41900 at 10% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹18800 at 10% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹6800 at 5% per year for 2 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹47500 at 8% per year for 2 years, compounded every year (in ₹).
16. 16.A scooter is worth ₹11000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
17. 17.What amount will ₹42500 grow to in 2 years at 8% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹16000 at 20% per year for 3 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹5200 at 20% per year for 2 years (in ₹)?
21. 21.What amount will ₹6400 grow to in 2 years at 15% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹13600 at 10% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹2800 at 15% per year for 2 years (in ₹)?
24. 24.What amount will ₹47600 grow to in 1 year at 20% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹16000 at 15% per year for 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹5900 at 10% per year for 2 years (in ₹)?
27. 27.What amount will ₹26000 grow to in 2 years at 5% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹40800 at 5% per year for 2 years, compounded every year (in ₹).
30. 30.A scooter is worth ₹43700. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹52800 at 5% per year for 2 years (in ₹)?
32. 32.What amount will ₹30400 grow to in 1 year at 4% per year compound interest (in ₹)?
33. 33.What amount will ₹32300 grow to in 1 year at 4% per year compound interest (in ₹)?
34. 34.A town has 48000 people. The population grows by 15% every year. What will the population be after 3 years?
35. 35.A town has 29600 people. The population grows by 15% every year. What will the population be after 2 years?
36. 36.What is the difference between the compound interest and the simple interest on ₹13200 at 25% per year for 2 years (in ₹)?
37. 37.What amount will ₹30300 grow to in 1 year at 10% per year compound interest (in ₹)?
38. 38.What amount will ₹9600 grow to in 1 year at 5% per year compound interest (in ₹)?
39. 39.A town has 7400 people. The population grows by 25% every year. What will the population be after 1 year?
40. 40.What amount will ₹37000 grow to in 3 years at 10% per year compound interest (in ₹)?

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