Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 577 · 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 ₹52500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
2. 2.Find the compound interest on ₹48500 at 8% per year for 1 year, compounded every year (in ₹).
3. 3.What amount will ₹32100 grow to in 1 year at 5% per year compound interest (in ₹)?
4. 4.A town has 23500 people. The population grows by 5% every year. What will the population be after 1 year?
5. 5.What is the difference between the compound interest and the simple interest on ₹47600 at 15% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹27100 at 20% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹52900 grow to in 1 year at 4% per year compound interest (in ₹)?
8. 8.What amount will ₹43300 grow to in 1 year at 25% per year compound interest (in ₹)?
9. 9.Find the compound interest on ₹45000 at 20% per year for 3 years, compounded every year (in ₹).
10. 10.What amount will ₹15000 grow to in 2 years at 4% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
13. 13.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
14. 14.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
15. 15.Find the compound interest on ₹42000 at 5% per year for 2 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹37500 at 4% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
18. 18.What amount will ₹26000 grow to in 3 years at 20% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹55000 grow to in 3 years at 10% per year compound interest (in ₹)?
21. 21.A town has 37400 people. The population grows by 12% every year. What will the population be after 1 year?
22. 22.A scooter is worth ₹25000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
23. 23.What amount will ₹24800 grow to in 2 years at 15% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹32500 at 12% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
26. 26.What amount will ₹50000 grow to in 2 years at 12% per year compound interest (in ₹)?
27. 27.What amount will ₹56000 grow to in 3 years at 5% per year compound interest (in ₹)?
28. 28.A scooter is worth ₹54000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹17200 at 25% per year for 2 years (in ₹)?
30. 30.A town has 15600 people. The population grows by 5% every year. What will the population be after 2 years?
31. 31.A scooter is worth ₹56500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
32. 32.What amount will ₹8000 grow to in 3 years at 25% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹37200 at 15% per year for 2 years, compounded every year (in ₹).
35. 35.A scooter is worth ₹8600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
36. 36.Find the compound interest on ₹2200 at 15% per year for 1 year, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹14800 at 15% per year for 2 years (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹12000 at 15% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹18400 at 25% per year for 2 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹13200 at 15% per year for 2 years, compounded every year (in ₹).

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