Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 24 · 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 ₹44000 at 15% per year for 2 years (in ₹)?
2. 2.A scooter is worth ₹47500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹25200 at 15% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
6. 6.A scooter is worth ₹32500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
7. 7.A town has 35600 people. The population grows by 25% every year. What will the population be after 1 year?
8. 8.What amount will ₹7700 grow to in 1 year at 25% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹29000 at 10% per year for 1 year, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹10400 at 15% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹9200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹31100 at 8% per year for 1 year, compounded every year (in ₹).
14. 14.Find the compound interest on ₹15900 at 5% per year for 1 year, compounded every year (in ₹).
15. 15.A town has 42500 people. The population grows by 12% every year. What will the population be after 2 years?
16. 16.What amount will ₹13200 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 ₹55600 at 5% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹32800 at 20% per year for 2 years (in ₹)?
19. 19.Find the compound interest on ₹8800 at 25% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹11700 grow to in 1 year at 20% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹29800 at 12% per year for 1 year, compounded every year (in ₹).
22. 22.Find the compound interest on ₹20200 at 12% per year for 1 year, compounded every year (in ₹).
23. 23.Find the compound interest on ₹35300 at 5% per year for 1 year, compounded every year (in ₹).
24. 24.A town has 32300 people. The population grows by 10% every year. What will the population be after 1 year?
25. 25.A scooter is worth ₹14100. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
26. 26.What amount will ₹52500 grow to in 2 years at 12% per year compound interest (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹11600 at 25% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹33000 at 10% per year for 3 years, compounded every year (in ₹).
30. 30.Find the compound interest on ₹28400 at 25% per year for 2 years, compounded every year (in ₹).
31. 31.A scooter is worth ₹4800. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
32. 32.A town has 12900 people. The population grows by 15% every year. What will the population be after 1 year?
33. 33.Find the compound interest on ₹27500 at 8% per year for 2 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹8000 at 25% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹55000 at 20% per year for 2 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹29000 at 10% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹18000 at 5% per year for 2 years, compounded every year (in ₹).
38. 38.Find the compound interest on ₹58300 at 12% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹16400 at 5% per year for 2 years (in ₹)?

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