Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 426 · 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 ₹47500 at 8% per year for 2 years (in ₹)?
2. 2.What amount will ₹10000 grow to in 2 years at 12% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹12400 at 25% per year for 2 years, compounded every year (in ₹).
4. 4.A town has 27500 people. The population grows by 8% every year. What will the population be after 2 years?
5. 5.What amount will ₹42500 grow to in 2 years at 4% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹29000 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.A town has 25100 people. The population grows by 5% every year. What will the population be after 1 year?
8. 8.What amount will ₹53600 grow to in 2 years at 5% per year compound interest (in ₹)?
9. 9.What amount will ₹14000 grow to in 3 years at 10% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹35200 at 15% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹42800 at 20% per year for 2 years (in ₹)?
12. 12.A scooter is worth ₹43600. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
13. 13.A scooter is worth ₹30600. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
14. 14.A scooter is worth ₹15000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
15. 15.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹23200 at 15% per year for 2 years (in ₹)?
17. 17.What amount will ₹56500 grow to in 2 years at 20% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹17200 at 25% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹10000 at 20% per year for 3 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹43500 at 10% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹14000 at 5% per year for 2 years (in ₹)?
22. 22.A scooter is worth ₹20000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹15200 at 5% per year for 2 years (in ₹)?
25. 25.A scooter is worth ₹8000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹42400 at 5% per year for 2 years (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.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
29. 29.Find the compound interest on ₹33500 at 25% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹32000 grow to in 3 years at 20% per year compound interest (in ₹)?
31. 31.What amount will ₹38800 grow to in 2 years at 15% per year compound interest (in ₹)?
32. 32.A town has 21700 people. The population grows by 8% every year. What will the population be after 1 year?
33. 33.What amount will ₹16100 grow to in 1 year at 15% per year compound interest (in ₹)?
34. 34.What amount will ₹15000 grow to in 2 years at 12% per year compound interest (in ₹)?
35. 35.A scooter is worth ₹45500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
36. 36.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹27600 at 25% per year for 2 years (in ₹)?
38. 38.What amount will ₹16000 grow to in 3 years at 25% per year compound interest (in ₹)?
39. 39.What amount will ₹12400 grow to in 1 year at 4% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹51000 at 20% per year for 2 years (in ₹)?

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