Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 914 · 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 ₹32000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
2. 2.Find the compound interest on ₹2400 at 25% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹46800 at 15% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹13600 at 5% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹53500 at 10% per year for 1 year, compounded every year (in ₹).
6. 6.A scooter is worth ₹24300. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
7. 7.Find the compound interest on ₹9000 at 20% per year for 3 years, compounded every year (in ₹).
8. 8.A town has 46800 people. The population grows by 5% every year. What will the population be after 2 years?
9. 9.Find the compound interest on ₹33600 at 15% per year for 2 years, compounded every year (in ₹).
10. 10.What amount will ₹4000 grow to in 3 years at 10% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹37700 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹32500 at 8% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹45000 at 12% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
15. 15.What amount will ₹10000 grow to in 3 years at 10% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹8800 at 5% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
18. 18.What amount will ₹31000 grow to in 3 years at 10% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹31100 at 20% per year for 2 years (in ₹)?
20. 20.What amount will ₹47200 grow to in 2 years at 25% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹57200 at 15% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹40000 at 15% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹39700 at 25% per year for 1 year, compounded every year (in ₹).
24. 24.What amount will ₹46400 grow to in 2 years at 15% per year compound interest (in ₹)?
25. 25.Find the compound interest on ₹55600 at 5% per year for 2 years, compounded every year (in ₹).
26. 26.What amount will ₹9200 grow to in 2 years at 25% per year compound interest (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
28. 28.What amount will ₹28500 grow to in 1 year at 10% per year compound interest (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹5000 at 4% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹28800 at 25% per year for 3 years, compounded every year (in ₹).
31. 31.What amount will ₹12800 grow to in 3 years at 25% per year compound interest (in ₹)?
32. 32.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
33. 33.What amount will ₹26700 grow to in 2 years at 20% per year compound interest (in ₹)?
34. 34.A town has 10900 people. The population grows by 20% every year. What will the population be after 1 year?
35. 35.What is the difference between the compound interest and the simple interest on ₹21200 at 15% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
37. 37.What amount will ₹4800 grow to in 2 years at 15% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹35800 at 15% per year for 1 year, compounded every year (in ₹).
39. 39.Find the compound interest on ₹17500 at 8% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹54800 at 5% per year for 2 years (in ₹)?

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