Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 6 · 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.A scooter is worth ₹15000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
2. 2.What amount will ₹55200 grow to in 1 year at 12% per year compound interest (in ₹)?
3. 3.A scooter is worth ₹7000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹44400 at 5% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹3600 at 10% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹19000 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹14800 at 25% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹27800 at 20% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹17600 grow to in 1 year at 10% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹47500 at 20% per year for 3 years, compounded every year (in ₹).
11. 11.What amount will ₹34000 grow to in 3 years at 10% per year compound interest (in ₹)?
12. 12.A scooter is worth ₹59700. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
13. 13.What amount will ₹9600 grow to in 2 years at 5% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹50200 at 5% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹53200 at 10% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹27200 at 20% per year for 2 years (in ₹)?
18. 18.A town has 22500 people. The population grows by 4% every year. What will the population be after 2 years?
19. 19.Find the compound interest on ₹54000 at 10% per year for 3 years, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹50400 at 5% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
22. 22.A town has 3500 people. The population grows by 5% every year. What will the population be after 1 year?
23. 23.What amount will ₹32300 grow to in 1 year at 4% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹16800 at 4% per year for 1 year, compounded every year (in ₹).
25. 25.Find the compound interest on ₹37900 at 10% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹54800 at 4% per year for 1 year, compounded every year (in ₹).
27. 27.A town has 8800 people. The population grows by 5% every year. What will the population be after 2 years?
28. 28.What amount will ₹28100 grow to in 1 year at 25% per year compound interest (in ₹)?
29. 29.Find the compound interest on ₹15000 at 4% per year for 2 years, compounded every year (in ₹).
30. 30.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
31. 31.What amount will ₹8000 grow to in 2 years at 25% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹25600 at 25% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹28800 at 15% per year for 2 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹50400 at 25% per year for 2 years (in ₹)?
35. 35.What amount will ₹36800 grow to in 1 year at 10% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹57200 at 25% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹16000 at 20% per year for 2 years (in ₹)?
38. 38.What amount will ₹14800 grow to in 2 years at 15% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹40000 at 25% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹58800 at 5% per year for 2 years (in ₹)?

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