Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 736 · 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 town has 33300 people. The population grows by 12% every year. What will the population be after 1 year?
2. 2.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹44400 at 25% per year for 2 years (in ₹)?
4. 4.A scooter is worth ₹48000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹21800 at 10% per year for 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
7. 7.What amount will ₹40400 grow to in 2 years at 5% per year compound interest (in ₹)?
8. 8.What amount will ₹30000 grow to in 2 years at 8% per year compound interest (in ₹)?
9. 9.A town has 47500 people. The population grows by 15% every year. What will the population be after 1 year?
10. 10.Find the compound interest on ₹3500 at 4% per year for 1 year, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹30400 at 5% per year for 2 years (in ₹)?
12. 12.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
13. 13.What amount will ₹14300 grow to in 1 year at 10% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹33200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹2500 at 8% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹33600 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 ₹53200 at 25% per year for 2 years (in ₹)?
19. 19.What amount will ₹28600 grow to in 1 year at 5% per year compound interest (in ₹)?
20. 20.Find the compound interest on ₹24000 at 10% per year for 3 years, compounded every year (in ₹).
21. 21.Find the compound interest on ₹15300 at 20% per year for 1 year, compounded every year (in ₹).
22. 22.What amount will ₹27700 grow to in 1 year at 4% per year compound interest (in ₹)?
23. 23.A scooter is worth ₹32000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
24. 24.Find the compound interest on ₹55200 at 10% per year for 2 years, compounded every year (in ₹).
25. 25.What amount will ₹52800 grow to in 1 year at 20% per year compound interest (in ₹)?
26. 26.A town has 52500 people. The population grows by 4% every year. What will the population be after 2 years?
27. 27.What is the difference between the compound interest and the simple interest on ₹10800 at 25% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹43200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
29. 29.What amount will ₹28000 grow to in 2 years at 5% per year compound interest (in ₹)?
30. 30.A scooter is worth ₹16000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
31. 31.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹33200 at 15% per year for 2 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹59900 at 12% per year for 1 year, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹51600 at 5% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹17100 at 8% per year for 1 year, compounded every year (in ₹).
37. 37.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
38. 38.A scooter is worth ₹12500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
39. 39.Find the compound interest on ₹57200 at 5% per year for 2 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹40000 at 8% per year for 2 years (in ₹)?

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