Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 127 · 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 ₹27500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
2. 2.What amount will ₹5300 grow to in 1 year at 12% per year compound interest (in ₹)?
3. 3.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹44000 at 20% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹7100 at 25% per year for 1 year, compounded every year (in ₹).
6. 6.A scooter is worth ₹48000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹42400 at 5% per year for 2 years (in ₹)?
8. 8.A town has 2900 people. The population grows by 8% every year. What will the population be after 1 year?
9. 9.Find the compound interest on ₹44500 at 5% per year for 1 year, compounded every year (in ₹).
10. 10.What amount will ₹32000 grow to in 3 years at 25% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹59400. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
12. 12.A town has 52400 people. The population grows by 12% every year. What will the population be after 1 year?
13. 13.What amount will ₹19600 grow to in 1 year at 8% per year compound interest (in ₹)?
14. 14.What amount will ₹6800 grow to in 2 years at 15% per year compound interest (in ₹)?
15. 15.A scooter is worth ₹45700. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
16. 16.Find the compound interest on ₹32000 at 25% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹40000 at 4% per year for 2 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹30900 at 15% per year for 1 year, compounded every year (in ₹).
19. 19.A scooter is worth ₹2600. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
20. 20.What amount will ₹46900 grow to in 1 year at 12% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹35000 at 20% per year for 2 years (in ₹)?
22. 22.A town has 16000 people. The population grows by 15% every year. What will the population be after 3 years?
23. 23.What amount will ₹47500 grow to in 2 years at 4% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹55600 at 15% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹16600 at 20% per year for 2 years, compounded every year (in ₹).
26. 26.Find the compound interest on ₹29100 at 10% per year for 1 year, compounded every year (in ₹).
27. 27.A town has 11100 people. The population grows by 4% every year. What will the population be after 1 year?
28. 28.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹46000 at 25% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹18000 at 10% per year for 2 years, compounded every year (in ₹).
31. 31.A town has 20000 people. The population grows by 10% every year. What will the population be after 3 years?
32. 32.Find the compound interest on ₹33600 at 8% per year for 1 year, compounded every year (in ₹).
33. 33.A scooter is worth ₹13500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹46000 at 15% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹28900 at 8% per year for 1 year, compounded every year (in ₹).
36. 36.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹47500 at 12% per year for 2 years (in ₹)?
38. 38.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹33500 at 20% per year for 1 year, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹30800 at 5% per year for 2 years (in ₹)?

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