Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 596 · 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.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹27500 at 10% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹47600 at 5% per year for 2 years (in ₹)?
4. 4.A town has 9100 people. The population grows by 20% every year. What will the population be after 2 years?
5. 5.What amount will ₹13000 grow to in 3 years at 20% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹24900 at 10% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
8. 8.A town has 4800 people. The population grows by 25% every year. What will the population be after 2 years?
9. 9.What is the difference between the compound interest and the simple interest on ₹38000 at 25% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹6100. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
12. 12.A scooter is worth ₹54100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹35000 at 12% per year for 2 years (in ₹)?
14. 14.What amount will ₹35200 grow to in 3 years at 25% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹58000 at 25% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹53600 at 15% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹40600 at 4% per year for 1 year, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
19. 19.A scooter is worth ₹6400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹32000 at 25% per year for 2 years (in ₹)?
21. 21.A town has 40400 people. The population grows by 12% every year. What will the population be after 1 year?
22. 22.A scooter is worth ₹44800. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
23. 23.Find the compound interest on ₹31400 at 10% per year for 1 year, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹23200 at 15% per year for 2 years (in ₹)?
25. 25.A scooter is worth ₹8000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
26. 26.Find the compound interest on ₹17200 at 15% per year for 2 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹42800 at 25% per year for 2 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹39000 at 10% per year for 3 years, compounded every year (in ₹).
31. 31.What amount will ₹55000 grow to in 2 years at 4% per year compound interest (in ₹)?
32. 32.What amount will ₹45200 grow to in 2 years at 15% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹4400 at 15% per year for 1 year, compounded every year (in ₹).
34. 34.A town has 13600 people. The population grows by 15% every year. What will the population be after 2 years?
35. 35.What amount will ₹11000 grow to in 3 years at 10% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹57600 at 5% per year for 2 years (in ₹)?
37. 37.A town has 54400 people. The population grows by 25% every year. What will the population be after 3 years?
38. 38.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
39. 39.A town has 3800 people. The population grows by 5% every year. What will the population be after 1 year?
40. 40.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?

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