Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 57 · 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 ₹12900. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
2. 2.A scooter is worth ₹10500. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
3. 3.A scooter is worth ₹29500. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹29600 at 25% per year for 2 years (in ₹)?
5. 5.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
6. 6.A town has 26400 people. The population grows by 5% every year. What will the population be after 2 years?
7. 7.Find the compound interest on ₹8000 at 20% per year for 3 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹28500 at 25% per year for 1 year, compounded every year (in ₹).
9. 9.Find the compound interest on ₹17600 at 20% per year for 1 year, compounded every year (in ₹).
10. 10.A town has 59200 people. The population grows by 25% every year. What will the population be after 1 year?
11. 11.What amount will ₹60000 grow to in 2 years at 25% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹36800 at 5% per year for 2 years (in ₹)?
13. 13.A scooter is worth ₹40000. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
14. 14.Find the compound interest on ₹24100 at 12% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹17300 grow to in 1 year at 10% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹36900 at 10% per year for 2 years, compounded every year (in ₹).
18. 18.What amount will ₹7600 grow to in 1 year at 12% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹53800 at 10% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹27200 at 5% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹3000 at 10% per year for 3 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹29300 at 15% per year for 1 year, compounded every year (in ₹).
23. 23.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹45000 at 4% per year for 2 years, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹52500 at 8% per year for 2 years (in ₹)?
26. 26.A scooter is worth ₹42700. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
27. 27.Find the compound interest on ₹32000 at 10% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹14400 at 25% per year for 3 years, compounded every year (in ₹).
29. 29.What amount will ₹59500 grow to in 3 years at 20% per year compound interest (in ₹)?
30. 30.What amount will ₹46400 grow to in 3 years at 25% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹30800 at 25% per year for 2 years, compounded every year (in ₹).
32. 32.Find the compound interest on ₹20000 at 8% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹16000 grow to in 2 years at 20% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹25000 at 8% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹25000 at 4% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹7500 at 12% per year for 2 years (in ₹)?
38. 38.A town has 15200 people. The population grows by 25% every year. What will the population be after 2 years?
39. 39.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
40. 40.A scooter is worth ₹2000. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?

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