Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 693 · 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 ₹50000 at 4% per year for 2 years (in ₹)?
2. 2.What amount will ₹22500 grow to in 2 years at 12% per year compound interest (in ₹)?
3. 3.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
4. 4.Find the compound interest on ₹42400 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.What amount will ₹40800 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹38600 at 4% per year for 1 year, compounded every year (in ₹).
7. 7.Find the compound interest on ₹7100 at 10% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹43600 at 5% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹7600 grow to in 1 year at 5% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹40000 at 15% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹29500 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹24700 at 10% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹53500 grow to in 1 year at 15% per year compound interest (in ₹)?
14. 14.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?
15. 15.What amount will ₹6000 grow to in 3 years at 10% per year compound interest (in ₹)?
16. 16.What amount will ₹49700 grow to in 2 years at 20% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹54400 at 25% per year for 2 years (in ₹)?
18. 18.What amount will ₹47000 grow to in 3 years at 10% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹15000 at 10% per year for 1 year, compounded every year (in ₹).
21. 21.Find the compound interest on ₹60000 at 20% per year for 3 years, compounded every year (in ₹).
22. 22.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹20000 at 4% per year for 1 year, compounded every year (in ₹).
24. 24.A scooter is worth ₹47000. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
25. 25.What amount will ₹24800 grow to in 1 year at 25% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹47500 at 4% per year for 2 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹13600 at 15% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹20500 at 20% per year for 1 year, compounded every year (in ₹).
29. 29.A town has 37100 people. The population grows by 5% every year. What will the population be after 1 year?
30. 30.What amount will ₹5500 grow to in 1 year at 5% per year compound interest (in ₹)?
31. 31.A town has 40100 people. The population grows by 5% every year. What will the population be after 1 year?
32. 32.What is the difference between the compound interest and the simple interest on ₹20400 at 15% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹27000 at 20% per year for 3 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹19600 at 10% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
36. 36.What amount will ₹35000 grow to in 2 years at 4% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹22500 at 10% per year for 2 years (in ₹)?
38. 38.What amount will ₹22800 grow to in 2 years at 15% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹6400 at 20% per year for 2 years (in ₹)?
40. 40.A scooter is worth ₹33900. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?

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