Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 677 · 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 ₹60000 at 4% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹54000 at 10% per year for 2 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
4. 4.What amount will ₹28200 grow to in 1 year at 8% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹12500 at 20% per year for 2 years (in ₹)?
6. 6.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹16900 at 20% per year for 2 years (in ₹)?
8. 8.What amount will ₹10700 grow to in 1 year at 20% per year compound interest (in ₹)?
9. 9.What amount will ₹25000 grow to in 2 years at 8% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
11. 11.A town has 15500 people. The population grows by 20% every year. What will the population be after 2 years?
12. 12.A town has 54200 people. The population grows by 10% every year. What will the population be after 1 year?
13. 13.What is the difference between the compound interest and the simple interest on ₹28000 at 15% per year for 2 years (in ₹)?
14. 14.A town has 12800 people. The population grows by 4% every year. What will the population be after 1 year?
15. 15.What amount will ₹15200 grow to in 1 year at 4% per year compound interest (in ₹)?
16. 16.A town has 3800 people. The population grows by 15% every year. What will the population be after 1 year?
17. 17.What amount will ₹13800 grow to in 1 year at 20% per year compound interest (in ₹)?
18. 18.What amount will ₹8600 grow to in 1 year at 4% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
20. 20.A scooter is worth ₹24300. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
21. 21.Find the compound interest on ₹8600 at 25% per year for 1 year, compounded every year (in ₹).
22. 22.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹4800 at 25% per year for 3 years, compounded every year (in ₹).
24. 24.A scooter is worth ₹34000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
25. 25.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹50000 at 5% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹16000 at 5% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹2300 at 10% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
33. 33.A scooter is worth ₹10400. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
34. 34.What amount will ₹55000 grow to in 1 year at 10% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹50400 at 5% per year for 2 years (in ₹)?
36. 36.What amount will ₹31000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹10800 at 15% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹37300 at 20% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹55300 at 5% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹17600 grow to in 3 years at 25% per year compound interest (in ₹)?

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