Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 695 · 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 ₹54600 at 20% per year for 2 years (in ₹)?
2. 2.A town has 23600 people. The population grows by 25% every year. What will the population be after 2 years?
3. 3.What amount will ₹22500 grow to in 3 years at 20% per year compound interest (in ₹)?
4. 4.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
5. 5.What amount will ₹50000 grow to in 2 years at 4% per year compound interest (in ₹)?
6. 6.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
7. 7.A scooter is worth ₹10000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
8. 8.Find the compound interest on ₹55100 at 4% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹58200 grow to in 2 years at 10% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹41000 at 10% per year for 2 years, compounded every year (in ₹).
11. 11.What amount will ₹11200 grow to in 2 years at 20% per year compound interest (in ₹)?
12. 12.What amount will ₹44800 grow to in 2 years at 5% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹2000 at 25% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹12700 at 10% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹46900 at 20% per year for 1 year, compounded every year (in ₹).
17. 17.A town has 60000 people. The population grows by 4% every year. What will the population be after 2 years?
18. 18.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹23200 at 25% per year for 2 years, compounded every year (in ₹).
20. 20.A town has 51700 people. The population grows by 10% every year. What will the population be after 1 year?
21. 21.A scooter is worth ₹46600. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹14800 at 15% per year for 2 years (in ₹)?
24. 24.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
25. 25.Find the compound interest on ₹32600 at 8% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹59300 at 20% per year for 1 year, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
28. 28.A town has 40400 people. The population grows by 8% every year. What will the population be after 1 year?
29. 29.A scooter is worth ₹59900. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹32000 at 25% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹27500 at 10% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹22800 at 4% per year for 1 year, compounded every year (in ₹).
34. 34.What amount will ₹49200 grow to in 1 year at 5% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹55000 at 12% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹37200 at 25% per year for 2 years, compounded every year (in ₹).
37. 37.A scooter is worth ₹40700. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
38. 38.What amount will ₹30500 grow to in 1 year at 12% per year compound interest (in ₹)?
39. 39.What amount will ₹30000 grow to in 1 year at 5% per year compound interest (in ₹)?
40. 40.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?

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