Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 505 · 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 ₹28300. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
2. 2.What amount will ₹7500 grow to in 2 years at 12% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹26900 at 5% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
5. 5.A town has 16000 people. The population grows by 15% every year. What will the population be after 3 years?
6. 6.A scooter is worth ₹2000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹14800 at 5% per year for 2 years (in ₹)?
8. 8.What amount will ₹17100 grow to in 2 years at 10% per year compound interest (in ₹)?
9. 9.What amount will ₹41300 grow to in 1 year at 25% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹51200 at 25% per year for 2 years (in ₹)?
11. 11.What amount will ₹45200 grow to in 2 years at 5% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹36900 at 20% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹50400 at 25% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹45200 at 25% per year for 2 years, compounded every year (in ₹).
16. 16.A scooter is worth ₹27800. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
17. 17.A town has 3200 people. The population grows by 10% every year. What will the population be after 1 year?
18. 18.What is the difference between the compound interest and the simple interest on ₹45000 at 12% per year for 2 years (in ₹)?
19. 19.What amount will ₹44600 grow to in 1 year at 4% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹46000 at 25% per year for 2 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹30000 at 25% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹10100 at 20% per year for 2 years (in ₹)?
23. 23.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹59200 at 15% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹28800 at 25% per year for 3 years, compounded every year (in ₹).
26. 26.Find the compound interest on ₹50000 at 12% per year for 2 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹42000 at 25% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹22100. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹6800 at 5% per year for 2 years (in ₹)?
30. 30.What amount will ₹55000 grow to in 2 years at 8% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹59100 at 10% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹39200 at 15% per year for 2 years (in ₹)?
34. 34.What amount will ₹9600 grow to in 3 years at 25% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹37000 at 20% per year for 2 years (in ₹)?
36. 36.What amount will ₹35000 grow to in 2 years at 12% per year compound interest (in ₹)?
37. 37.What amount will ₹50000 grow to in 3 years at 10% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹10200 at 20% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹19000 at 10% per year for 3 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹48400 at 5% per year for 2 years (in ₹)?

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