Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 213 · 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.A scooter is worth ₹6900. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
2. 2.What amount will ₹32000 grow to in 1 year at 8% per year compound interest (in ₹)?
3. 3.What amount will ₹29700 grow to in 1 year at 8% per year compound interest (in ₹)?
4. 4.What amount will ₹10100 grow to in 2 years at 10% per year compound interest (in ₹)?
5. 5.A scooter is worth ₹16500. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
6. 6.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹26800 at 5% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹52200 at 25% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.A town has 37900 people. The population grows by 4% every year. What will the population be after 1 year?
11. 11.What is the difference between the compound interest and the simple interest on ₹38700 at 10% per year for 2 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹42000 at 5% per year for 2 years (in ₹)?
13. 13.What amount will ₹42200 grow to in 1 year at 15% per year compound interest (in ₹)?
14. 14.What amount will ₹26200 grow to in 1 year at 8% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹54100 at 10% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹29900 at 10% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹10400 at 5% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
19. 19.A town has 12000 people. The population grows by 10% every year. What will the population be after 3 years?
20. 20.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
21. 21.A town has 32000 people. The population grows by 15% every year. What will the population be after 3 years?
22. 22.What amount will ₹7500 grow to in 2 years at 4% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹25000 at 12% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹16000 at 20% per year for 1 year, compounded every year (in ₹).
25. 25.A scooter is worth ₹57500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
26. 26.A scooter is worth ₹24500. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
27. 27.What amount will ₹12900 grow to in 1 year at 25% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹51600 at 5% per year for 2 years (in ₹)?
29. 29.What amount will ₹5000 grow to in 3 years at 10% per year compound interest (in ₹)?
30. 30.What amount will ₹11400 grow to in 1 year at 25% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹47100 at 10% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹29200 at 25% per year for 2 years (in ₹)?
33. 33.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
34. 34.What amount will ₹32600 grow to in 1 year at 10% per year compound interest (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹13400 at 12% per year for 1 year, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹14000 at 15% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹29600 at 25% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹11000 at 10% per year for 3 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹5000 at 12% per year for 2 years, compounded every year (in ₹).

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