Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 333 · 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 ₹40600 at 20% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹60000 at 8% per year for 2 years, compounded every year (in ₹).
3. 3.What amount will ₹52600 grow to in 1 year at 20% per year compound interest (in ₹)?
4. 4.What amount will ₹56100 grow to in 2 years at 10% per year compound interest (in ₹)?
5. 5.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
6. 6.What amount will ₹30800 grow to in 1 year at 5% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
8. 8.A town has 15600 people. The population grows by 25% every year. What will the population be after 2 years?
9. 9.What amount will ₹52800 grow to in 1 year at 4% per year compound interest (in ₹)?
10. 10.What amount will ₹40800 grow to in 1 year at 12% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
12. 12.What amount will ₹58100 grow to in 1 year at 8% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹12800 at 15% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹30400 at 5% per year for 2 years, compounded every year (in ₹).
16. 16.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
17. 17.A town has 53200 people. The population grows by 15% every year. What will the population be after 2 years?
18. 18.Find the compound interest on ₹55800 at 10% per year for 2 years, compounded every year (in ₹).
19. 19.A town has 50000 people. The population grows by 8% every year. What will the population be after 2 years?
20. 20.A scooter is worth ₹13200. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
21. 21.Find the compound interest on ₹12000 at 10% per year for 3 years, compounded every year (in ₹).
22. 22.A town has 8500 people. The population grows by 12% every year. What will the population be after 1 year?
23. 23.Find the compound interest on ₹22500 at 4% per year for 2 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹4100 at 20% per year for 2 years, compounded every year (in ₹).
25. 25.What amount will ₹45700 grow to in 1 year at 5% per year compound interest (in ₹)?
26. 26.A town has 48000 people. The population grows by 15% every year. What will the population be after 3 years?
27. 27.Find the compound interest on ₹2400 at 10% per year for 1 year, compounded every year (in ₹).
28. 28.A scooter is worth ₹16800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
29. 29.A town has 17000 people. The population grows by 10% every year. What will the population be after 3 years?
30. 30.Find the compound interest on ₹8000 at 15% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹4000 at 10% per year for 3 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹19000 at 4% per year for 1 year, compounded every year (in ₹).
33. 33.Find the compound interest on ₹46000 at 10% per year for 2 years, compounded every year (in ₹).
34. 34.What amount will ₹5200 grow to in 1 year at 15% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
36. 36.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
37. 37.Find the compound interest on ₹41100 at 4% per year for 1 year, compounded every year (in ₹).
38. 38.A scooter is worth ₹36100. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
39. 39.A scooter is worth ₹55000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?

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