Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 947 · 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 ₹19700 at 20% per year for 2 years (in ₹)?
2. 2.What amount will ₹42800 grow to in 2 years at 15% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
4. 4.What amount will ₹49100 grow to in 1 year at 25% per year compound interest (in ₹)?
5. 5.A town has 48000 people. The population grows by 5% every year. What will the population be after 3 years?
6. 6.What is the difference between the compound interest and the simple interest on ₹4800 at 10% per year for 2 years (in ₹)?
7. 7.What amount will ₹34000 grow to in 3 years at 20% per year compound interest (in ₹)?
8. 8.What amount will ₹16000 grow to in 3 years at 25% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹49600 at 25% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹14800 at 5% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹12600 at 4% per year for 1 year, compounded every year (in ₹).
12. 12.Find the compound interest on ₹14800 at 5% per year for 2 years, compounded every year (in ₹).
13. 13.A scooter is worth ₹10000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
14. 14.Find the compound interest on ₹21100 at 8% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹18200 grow to in 2 years at 10% per year compound interest (in ₹)?
16. 16.What amount will ₹8300 grow to in 1 year at 25% per year compound interest (in ₹)?
17. 17.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
18. 18.What amount will ₹21200 grow to in 2 years at 15% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹21200 at 15% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹3600 grow to in 2 years at 5% per year compound interest (in ₹)?
21. 21.What amount will ₹50700 grow to in 1 year at 25% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹42800 at 10% per year for 1 year, compounded every year (in ₹).
24. 24.What amount will ₹55400 grow to in 2 years at 20% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹17500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
26. 26.What amount will ₹11200 grow to in 1 year at 12% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹14200 at 10% per year for 2 years (in ₹)?
29. 29.What amount will ₹17200 grow to in 1 year at 20% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹27500 at 12% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹38400 at 15% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹56000 at 5% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹47600 grow to in 2 years at 25% per year compound interest (in ₹)?
34. 34.What amount will ₹41200 grow to in 2 years at 5% per year compound interest (in ₹)?
35. 35.What amount will ₹42400 grow to in 1 year at 12% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹59000 at 10% per year for 3 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹5000 at 10% per year for 2 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹22900 at 15% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹32200 grow to in 1 year at 8% per year compound interest (in ₹)?
40. 40.A scooter is worth ₹8400. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?

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