Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 209 · 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 amount will ₹57000 grow to in 1 year at 25% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹54400 at 25% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹3300 at 10% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹52400 at 15% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹2400 at 15% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹60000 at 4% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹55000 at 8% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹55200 at 10% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹59200 at 15% per year for 2 years (in ₹)?
10. 10.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
11. 11.What amount will ₹48200 grow to in 1 year at 25% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
13. 13.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
14. 14.What amount will ₹16000 grow to in 1 year at 25% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹40800 at 25% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹15100 at 20% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹2800 at 5% per year for 2 years (in ₹)?
19. 19.What amount will ₹45200 grow to in 2 years at 15% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹9200 at 20% per year for 2 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹17500 at 12% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹47500 at 8% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹51100 at 4% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹2500 grow to in 1 year at 4% per year compound interest (in ₹)?
26. 26.A town has 18000 people. The population grows by 20% every year. What will the population be after 3 years?
27. 27.A town has 30000 people. The population grows by 12% every year. What will the population be after 2 years?
28. 28.What amount will ₹43700 grow to in 2 years at 20% per year compound interest (in ₹)?
29. 29.What amount will ₹55500 grow to in 3 years at 20% per year compound interest (in ₹)?
30. 30.A town has 36000 people. The population grows by 10% every year. What will the population be after 3 years?
31. 31.A town has 14500 people. The population grows by 20% every year. What will the population be after 3 years?
32. 32.A town has 46800 people. The population grows by 25% every year. What will the population be after 2 years?
33. 33.What is the difference between the compound interest and the simple interest on ₹42800 at 25% per year for 2 years (in ₹)?
34. 34.A scooter is worth ₹15500. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
35. 35.What amount will ₹30400 grow to in 2 years at 15% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹24400 at 20% per year for 1 year, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹17200 at 25% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹49600 at 25% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹45000 at 8% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹18400 at 15% per year for 2 years (in ₹)?

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