Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 456 · 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 ₹35200 grow to in 1 year at 8% per year compound interest (in ₹)?
2. 2.What amount will ₹22500 grow to in 2 years at 12% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹42200 at 10% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹17200 at 5% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹27900 at 20% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹40800 at 15% per year for 2 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹34000 at 20% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?
9. 9.Find the compound interest on ₹17900 at 10% per year for 1 year, compounded every year (in ₹).
10. 10.Find the compound interest on ₹10500 at 10% per year for 2 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹52500 at 12% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹5200 at 15% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹17500 grow to in 2 years at 4% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹44000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹34000 at 25% per year for 2 years (in ₹)?
16. 16.What amount will ₹48900 grow to in 1 year at 5% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
18. 18.What amount will ₹17600 grow to in 1 year at 20% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹14300 at 10% per year for 1 year, compounded every year (in ₹).
20. 20.Find the compound interest on ₹12000 at 20% per year for 3 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹23600 at 25% per year for 2 years, compounded every year (in ₹).
22. 22.A scooter is worth ₹58500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹52000 at 5% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹2300 at 20% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹50000 at 12% per year for 2 years, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹41900 at 12% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹57600 grow to in 3 years at 25% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹5000 at 8% per year for 2 years, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
32. 32.What amount will ₹38400 grow to in 3 years at 25% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹6000 at 10% per year for 3 years, compounded every year (in ₹).
34. 34.What amount will ₹59600 grow to in 2 years at 5% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹13500 at 10% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹30800 at 25% per year for 2 years (in ₹)?
38. 38.A scooter is worth ₹42400. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
39. 39.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
40. 40.A town has 19500 people. The population grows by 20% every year. What will the population be after 3 years?

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