Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 797 · 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 ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹11600 at 5% per year for 2 years (in ₹)?
3. 3.What amount will ₹15500 grow to in 1 year at 12% per year compound interest (in ₹)?
4. 4.What amount will ₹24800 grow to in 2 years at 10% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹7600 at 10% per year for 2 years, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹60000 at 4% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹27100 at 20% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹43300 at 20% per year for 2 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹42000 at 25% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹51300 at 10% per year for 1 year, compounded every year (in ₹).
11. 11.Find the compound interest on ₹29100 at 20% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
13. 13.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹8500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
15. 15.What amount will ₹40800 grow to in 2 years at 5% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹12500 at 8% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
18. 18.What amount will ₹12200 grow to in 2 years at 20% per year compound interest (in ₹)?
19. 19.What amount will ₹25000 grow to in 2 years at 12% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
21. 21.A town has 45900 people. The population grows by 10% every year. What will the population be after 1 year?
22. 22.What is the difference between the compound interest and the simple interest on ₹41600 at 5% per year for 2 years (in ₹)?
23. 23.A town has 32000 people. The population grows by 15% every year. What will the population be after 3 years?
24. 24.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
25. 25.A scooter is worth ₹56400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
27. 27.A scooter is worth ₹20200. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹58800 at 25% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹32400 at 10% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
31. 31.A scooter is worth ₹46600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹5000 at 12% per year for 2 years (in ₹)?
33. 33.What amount will ₹29100 grow to in 1 year at 12% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹44400 at 15% per year for 2 years, compounded every year (in ₹).
35. 35.What amount will ₹14900 grow to in 1 year at 12% per year compound interest (in ₹)?
36. 36.What amount will ₹41000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹48000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹58200 at 10% per year for 2 years (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹60000 at 10% per year for 2 years (in ₹)?

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