Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 480 · 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 ₹10000 at 5% per year for 2 years (in ₹)?
2. 2.What amount will ₹14000 grow to in 1 year at 12% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹12200 at 5% per year for 1 year, compounded every year (in ₹).
4. 4.What amount will ₹12700 grow to in 2 years at 10% per year compound interest (in ₹)?
5. 5.A town has 18800 people. The population grows by 25% every year. What will the population be after 2 years?
6. 6.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
7. 7.A scooter is worth ₹25600. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
8. 8.A scooter is worth ₹53200. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
9. 9.What amount will ₹35600 grow to in 2 years at 5% per year compound interest (in ₹)?
10. 10.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
11. 11.A town has 4800 people. The population grows by 5% every year. What will the population be after 2 years?
12. 12.Find the compound interest on ₹22500 at 8% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹55200 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 ₹36000 at 5% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹38800 at 15% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹14300 at 20% per year for 2 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹30000 at 12% per year for 2 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹60000 at 15% per year for 1 year, compounded every year (in ₹).
19. 19.Find the compound interest on ₹9500 at 20% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹37600 grow to in 1 year at 25% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹23100 at 10% per year for 2 years (in ₹)?
22. 22.What amount will ₹25200 grow to in 2 years at 5% per year compound interest (in ₹)?
23. 23.A town has 25700 people. The population grows by 10% every year. What will the population be after 2 years?
24. 24.Find the compound interest on ₹20800 at 4% per year for 1 year, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹13300 at 10% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹48500 at 10% per year for 1 year, compounded every year (in ₹).
28. 28.A town has 11200 people. The population grows by 20% every year. What will the population be after 2 years?
29. 29.A scooter is worth ₹44600. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
30. 30.What amount will ₹58400 grow to in 1 year at 25% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹14400 at 25% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹27600 at 25% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹9200 at 5% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹28400 at 12% per year for 1 year, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹54600 at 20% per year for 2 years (in ₹)?
36. 36.A town has 49300 people. The population grows by 25% every year. What will the population be after 1 year?
37. 37.What amount will ₹37800 grow to in 1 year at 10% per year compound interest (in ₹)?
38. 38.A scooter is worth ₹51200. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
39. 39.A town has 32000 people. The population grows by 10% every year. What will the population be after 3 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹58400 at 5% per year for 2 years (in ₹)?

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