Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 289 · 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.What amount will ₹52000 grow to in 2 years at 10% per year compound interest (in ₹)?
2. 2.A scooter is worth ₹13100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
5. 5.A scooter is worth ₹11000. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
6. 6.Find the compound interest on ₹35000 at 12% per year for 2 years, compounded every year (in ₹).
7. 7.A town has 30400 people. The population grows by 25% every year. What will the population be after 2 years?
8. 8.A scooter is worth ₹26000. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
9. 9.What amount will ₹52500 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.Find the compound interest on ₹52000 at 15% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹27200 at 25% per year for 3 years, compounded every year (in ₹).
12. 12.A scooter is worth ₹25000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
13. 13.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹56000 at 5% per year for 1 year, compounded every year (in ₹).
16. 16.A scooter is worth ₹44300. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹58000 at 15% per year for 2 years (in ₹)?
18. 18.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
19. 19.What amount will ₹20700 grow to in 1 year at 12% per year compound interest (in ₹)?
20. 20.A town has 20000 people. The population grows by 8% every year. What will the population be after 2 years?
21. 21.What amount will ₹46800 grow to in 2 years at 15% per year compound interest (in ₹)?
22. 22.A scooter is worth ₹47600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
23. 23.A town has 47200 people. The population grows by 5% every year. What will the population be after 2 years?
24. 24.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
25. 25.What amount will ₹16000 grow to in 3 years at 10% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹40000 at 4% per year for 2 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹28500 at 20% per year for 3 years, compounded every year (in ₹).
28. 28.A town has 10000 people. The population grows by 5% every year. What will the population be after 2 years?
29. 29.A town has 30400 people. The population grows by 10% every year. What will the population be after 1 year?
30. 30.A scooter is worth ₹32500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
31. 31.What amount will ₹37200 grow to in 2 years at 20% per year compound interest (in ₹)?
32. 32.A town has 16500 people. The population grows by 20% every year. What will the population be after 2 years?
33. 33.What amount will ₹47600 grow to in 2 years at 5% per year compound interest (in ₹)?
34. 34.A town has 27200 people. The population grows by 25% every year. What will the population be after 3 years?
35. 35.A scooter is worth ₹5000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹16400 at 15% per year for 2 years (in ₹)?
37. 37.Find the compound interest on ₹5200 at 15% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹17700 at 10% per year for 2 years (in ₹)?
39. 39.A town has 15000 people. The population grows by 4% every year. What will the population be after 2 years?
40. 40.What amount will ₹27200 grow to in 2 years at 20% per year compound interest (in ₹)?

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