Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 823 · 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 ₹40400 at 25% per year for 2 years (in ₹)?
2. 2.A town has 42500 people. The population grows by 8% every year. What will the population be after 2 years?
3. 3.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹39000 at 15% per year for 1 year, compounded every year (in ₹).
5. 5.Find the compound interest on ₹11100 at 15% per year for 1 year, compounded every year (in ₹).
6. 6.What amount will ₹30200 grow to in 1 year at 25% per year compound interest (in ₹)?
7. 7.What amount will ₹13700 grow to in 1 year at 20% per year compound interest (in ₹)?
8. 8.What amount will ₹46800 grow to in 2 years at 25% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹57200 at 25% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹10000 at 25% per year for 2 years (in ₹)?
11. 11.What amount will ₹38500 grow to in 1 year at 5% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹23100 at 4% per year for 1 year, compounded every year (in ₹).
13. 13.A scooter is worth ₹30500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
14. 14.What amount will ₹52000 grow to in 3 years at 10% per year compound interest (in ₹)?
15. 15.Find the compound interest on ₹47500 at 15% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹48400 at 20% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
19. 19.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹11900 at 15% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹11000 at 10% per year for 3 years, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹57500 at 12% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
24. 24.What amount will ₹27000 grow to in 3 years at 10% per year compound interest (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹6900 at 20% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹6000 at 10% per year for 3 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹13900 at 10% per year for 1 year, compounded every year (in ₹).
28. 28.A scooter is worth ₹55500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
30. 30.What amount will ₹48800 grow to in 2 years at 25% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹53600 at 5% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹57000 at 15% per year for 1 year, compounded every year (in ₹).
33. 33.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹29300 at 20% per year for 2 years (in ₹)?
35. 35.What amount will ₹40800 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.A town has 40000 people. The population grows by 5% every year. What will the population be after 3 years?
37. 37.Find the compound interest on ₹52300 at 8% per year for 1 year, compounded every year (in ₹).
38. 38.A scooter is worth ₹18400. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
39. 39.What amount will ₹25700 grow to in 1 year at 8% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?

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