Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 953 · 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 ₹41200. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
2. 2.What amount will ₹26400 grow to in 1 year at 8% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹45000 at 10% per year for 3 years, compounded every year (in ₹).
4. 4.A scooter is worth ₹32000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹57700 at 5% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹7700 grow to in 1 year at 20% per year compound interest (in ₹)?
8. 8.What amount will ₹36200 grow to in 1 year at 10% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹57200 at 15% per year for 2 years, compounded every year (in ₹).
10. 10.Find the compound interest on ₹59000 at 5% per year for 1 year, compounded every year (in ₹).
11. 11.A scooter is worth ₹31000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
12. 12.A town has 17600 people. The population grows by 5% every year. What will the population be after 2 years?
13. 13.Find the compound interest on ₹19100 at 25% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹4300 at 20% per year for 2 years, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹34000 at 10% per year for 2 years (in ₹)?
17. 17.What amount will ₹48400 grow to in 1 year at 12% per year compound interest (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹26800 at 5% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
20. 20.What amount will ₹40000 grow to in 3 years at 5% per year compound interest (in ₹)?
21. 21.What amount will ₹41300 grow to in 1 year at 15% per year compound interest (in ₹)?
22. 22.What amount will ₹32500 grow to in 2 years at 8% per year compound interest (in ₹)?
23. 23.A town has 2400 people. The population grows by 5% every year. What will the population be after 2 years?
24. 24.A town has 35000 people. The population grows by 4% every year. What will the population be after 2 years?
25. 25.A scooter is worth ₹48000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
26. 26.A town has 26400 people. The population grows by 25% every year. What will the population be after 2 years?
27. 27.Find the compound interest on ₹12500 at 12% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹47000 at 4% per year for 1 year, compounded every year (in ₹).
29. 29.Find the compound interest on ₹53400 at 20% per year for 1 year, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹56000 at 5% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹58300 at 5% per year for 1 year, compounded every year (in ₹).
32. 32.A scooter is worth ₹10400. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
33. 33.A town has 2800 people. The population grows by 5% every year. What will the population be after 2 years?
34. 34.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
35. 35.What amount will ₹37500 grow to in 1 year at 20% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹53600 at 25% per year for 2 years (in ₹)?
37. 37.What amount will ₹24800 grow to in 2 years at 5% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹18800 at 5% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹37000 at 10% per year for 3 years, compounded every year (in ₹).
40. 40.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?

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