Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 718 · 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 ₹53200 at 25% per year for 2 years (in ₹)?
2. 2.What amount will ₹32800 grow to in 2 years at 25% per year compound interest (in ₹)?
3. 3.What amount will ₹51200 grow to in 3 years at 25% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹8600 at 10% per year for 2 years (in ₹)?
5. 5.A scooter is worth ₹3200. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
6. 6.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
8. 8.A scooter is worth ₹56000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
9. 9.Find the compound interest on ₹41100 at 10% per year for 2 years, compounded every year (in ₹).
10. 10.A town has 44000 people. The population grows by 25% every year. What will the population be after 1 year?
11. 11.Find the compound interest on ₹32500 at 12% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹47700 at 20% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
15. 15.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹13100 at 20% per year for 2 years (in ₹)?
17. 17.What amount will ₹50000 grow to in 2 years at 5% per year compound interest (in ₹)?
18. 18.What amount will ₹25000 grow to in 2 years at 12% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹39900 at 10% per year for 2 years (in ₹)?
20. 20.A town has 48000 people. The population grows by 15% every year. What will the population be after 3 years?
21. 21.What amount will ₹42700 grow to in 1 year at 4% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
23. 23.Find the compound interest on ₹17100 at 8% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹56600 at 20% per year for 2 years (in ₹)?
25. 25.A town has 26600 people. The population grows by 25% every year. What will the population be after 1 year?
26. 26.What amount will ₹13400 grow to in 1 year at 4% per year compound interest (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹32100 at 20% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹40400 at 5% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹19200 at 15% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹30100 at 10% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹16000 at 25% per year for 3 years, compounded every year (in ₹).
33. 33.A town has 50200 people. The population grows by 25% every year. What will the population be after 1 year?
34. 34.A town has 42200 people. The population grows by 5% every year. What will the population be after 1 year?
35. 35.What amount will ₹56000 grow to in 3 years at 10% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹16800 at 5% per year for 2 years, compounded every year (in ₹).
37. 37.Find the compound interest on ₹38500 at 20% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹16800 at 25% per year for 2 years (in ₹)?
39. 39.What amount will ₹16000 grow to in 3 years at 25% per year compound interest (in ₹)?
40. 40.What amount will ₹46400 grow to in 3 years at 25% per year compound interest (in ₹)?

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