Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 741 · 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 ₹22500 at 8% per year for 2 years (in ₹)?
2. 2.A scooter is worth ₹4800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
3. 3.Find the compound interest on ₹32500 at 4% per year for 2 years, compounded every year (in ₹).
4. 4.Find the compound interest on ₹22400 at 25% per year for 2 years, compounded every year (in ₹).
5. 5.A town has 8000 people. The population grows by 5% every year. What will the population be after 2 years?
6. 6.A scooter is worth ₹18200. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹54000 at 15% per year for 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹3600 at 25% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
11. 11.A town has 19200 people. The population grows by 25% every year. What will the population be after 3 years?
12. 12.Find the compound interest on ₹7000 at 10% per year for 3 years, compounded every year (in ₹).
13. 13.What amount will ₹19800 grow to in 1 year at 12% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹45600 at 25% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹59100 at 5% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹52400 at 5% per year for 2 years (in ₹)?
17. 17.What amount will ₹50000 grow to in 1 year at 10% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹57500 at 20% per year for 3 years, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹24400 at 15% per year for 2 years (in ₹)?
20. 20.A scooter is worth ₹5700. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹24800 at 15% per year for 2 years (in ₹)?
22. 22.Find the compound interest on ₹9900 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹44000 at 5% per year for 2 years (in ₹)?
24. 24.A town has 30400 people. The population grows by 25% every year. What will the population be after 3 years?
25. 25.A scooter is worth ₹22100. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
26. 26.A town has 37000 people. The population grows by 10% every year. What will the population be after 3 years?
27. 27.What amount will ₹5700 grow to in 1 year at 8% per year compound interest (in ₹)?
28. 28.What amount will ₹20000 grow to in 2 years at 4% per year compound interest (in ₹)?
29. 29.Find the compound interest on ₹56400 at 15% per year for 1 year, compounded every year (in ₹).
30. 30.Find the compound interest on ₹27300 at 15% per year for 1 year, compounded every year (in ₹).
31. 31.What amount will ₹23800 grow to in 2 years at 10% per year compound interest (in ₹)?
32. 32.What amount will ₹6500 grow to in 2 years at 10% per year compound interest (in ₹)?
33. 33.A town has 23700 people. The population grows by 10% every year. What will the population be after 1 year?
34. 34.A scooter is worth ₹33600. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹14100 at 10% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹55000 at 8% per year for 2 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹6300 at 20% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹23300 at 15% per year for 1 year, compounded every year (in ₹).
39. 39.A town has 43200 people. The population grows by 15% every year. What will the population be after 2 years?
40. 40.What amount will ₹25700 grow to in 2 years at 10% per year compound interest (in ₹)?

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