Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 318 · 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 ₹21700 grow to in 1 year at 8% per year compound interest (in ₹)?
2. 2.A town has 57500 people. The population grows by 5% every year. What will the population be after 1 year?
3. 3.A scooter is worth ₹47500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹17600 at 10% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹4100 at 20% per year for 1 year, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹48800 at 5% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹15000 at 10% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹31900 at 5% per year for 1 year, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹48800 at 15% per year for 2 years (in ₹)?
10. 10.A town has 26500 people. The population grows by 5% every year. What will the population be after 1 year?
11. 11.What is the difference between the compound interest and the simple interest on ₹43800 at 20% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹21600 at 5% per year for 2 years (in ₹)?
14. 14.What amount will ₹12600 grow to in 1 year at 5% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹12200 at 20% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹26800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
17. 17.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹27000 at 10% per year for 3 years, compounded every year (in ₹).
19. 19.A town has 14800 people. The population grows by 5% every year. What will the population be after 1 year?
20. 20.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
21. 21.What amount will ₹58000 grow to in 2 years at 25% per year compound interest (in ₹)?
22. 22.A town has 56000 people. The population grows by 15% every year. What will the population be after 3 years?
23. 23.Find the compound interest on ₹50000 at 4% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹5000 at 8% per year for 2 years (in ₹)?
25. 25.What amount will ₹12800 grow to in 2 years at 5% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹12500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
27. 27.What amount will ₹31700 grow to in 1 year at 15% per year compound interest (in ₹)?
28. 28.What amount will ₹12000 grow to in 1 year at 20% per year compound interest (in ₹)?
29. 29.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹10000 at 5% per year for 2 years (in ₹)?
31. 31.Find the compound interest on ₹14200 at 20% per year for 2 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹60000 at 5% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹51400 at 12% per year for 1 year, compounded every year (in ₹).
34. 34.Find the compound interest on ₹14400 at 20% per year for 2 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
36. 36.A scooter is worth ₹56000. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
37. 37.Find the compound interest on ₹31400 at 25% per year for 1 year, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹12400 at 5% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹17000 at 4% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹51500 grow to in 3 years at 20% per year compound interest (in ₹)?

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