Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 968 · 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 ₹55600 grow to in 1 year at 4% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹52800 at 12% per year for 1 year, compounded every year (in ₹).
3. 3.What amount will ₹7500 grow to in 2 years at 12% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹26800 at 20% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹40000 at 25% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹7900 grow to in 1 year at 8% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹14100 at 5% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹7800 at 20% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹21000 at 10% per year for 3 years, compounded every year (in ₹).
11. 11.What amount will ₹36700 grow to in 2 years at 20% per year compound interest (in ₹)?
12. 12.A town has 8000 people. The population grows by 10% every year. What will the population be after 3 years?
13. 13.A scooter is worth ₹3400. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
14. 14.Find the compound interest on ₹47500 at 12% per year for 2 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹12800 at 25% per year for 3 years, compounded every year (in ₹).
16. 16.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
17. 17.What amount will ₹44400 grow to in 2 years at 15% per year compound interest (in ₹)?
18. 18.A scooter is worth ₹3900. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹19200 at 15% per year for 2 years (in ₹)?
20. 20.What amount will ₹30800 grow to in 2 years at 15% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹52500 at 4% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹30000 at 5% 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.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
25. 25.What amount will ₹3200 grow to in 2 years at 5% per year compound interest (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
27. 27.Find the compound interest on ₹16400 at 10% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹38000 at 10% per year for 3 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹14000 at 5% per year for 2 years, compounded every year (in ₹).
31. 31.A scooter is worth ₹43000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
32. 32.What amount will ₹34100 grow to in 2 years at 20% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹57300 at 20% per year for 2 years, compounded every year (in ₹).
34. 34.What amount will ₹20300 grow to in 1 year at 10% per year compound interest (in ₹)?
35. 35.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
36. 36.What amount will ₹17500 grow to in 2 years at 20% per year compound interest (in ₹)?
37. 37.A town has 10000 people. The population grows by 12% every year. What will the population be after 2 years?
38. 38.Find the compound interest on ₹5700 at 20% per year for 1 year, compounded every year (in ₹).
39. 39.A scooter is worth ₹13200. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
40. 40.What amount will ₹1600 grow to in 3 years at 25% per year compound interest (in ₹)?

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