Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 992 · 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 ₹58200. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
2. 2.A town has 7500 people. The population grows by 15% every year. What will the population be after 1 year?
3. 3.Find the compound interest on ₹54800 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
5. 5.A town has 47500 people. The population grows by 20% every year. What will the population be after 3 years?
6. 6.A town has 12000 people. The population grows by 10% every year. What will the population be after 3 years?
7. 7.A town has 15000 people. The population grows by 12% every year. What will the population be after 2 years?
8. 8.A town has 30200 people. The population grows by 8% every year. What will the population be after 1 year?
9. 9.What is the difference between the compound interest and the simple interest on ₹32500 at 8% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹14400 at 25% per year for 2 years, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹58100 at 10% per year for 2 years (in ₹)?
12. 12.A scooter is worth ₹52000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
13. 13.A scooter is worth ₹3500. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
14. 14.A scooter is worth ₹52500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
15. 15.Find the compound interest on ₹22500 at 12% per year for 2 years, compounded every year (in ₹).
16. 16.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹4800 at 25% per year for 3 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹13200 at 10% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹55200 at 5% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹15500 grow to in 1 year at 12% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹24400 at 5% per year for 2 years (in ₹)?
22. 22.What amount will ₹16800 grow to in 1 year at 8% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹23300 at 4% per year for 1 year, compounded every year (in ₹).
25. 25.A town has 57000 people. The population grows by 12% every year. What will the population be after 1 year?
26. 26.What is the difference between the compound interest and the simple interest on ₹30700 at 20% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹45000 at 12% per year for 2 years (in ₹)?
28. 28.What amount will ₹50400 grow to in 2 years at 20% per year compound interest (in ₹)?
29. 29.What amount will ₹32800 grow to in 2 years at 15% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹36300 at 20% per year for 2 years (in ₹)?
31. 31.A town has 40000 people. The population grows by 25% every year. What will the population be after 3 years?
32. 32.A town has 3500 people. The population grows by 10% every year. What will the population be after 2 years?
33. 33.A scooter is worth ₹48000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
34. 34.What amount will ₹50000 grow to in 2 years at 12% per year compound interest (in ₹)?
35. 35.Find the compound interest on ₹17500 at 12% per year for 2 years, compounded every year (in ₹).
36. 36.Find the compound interest on ₹32500 at 12% per year for 2 years, compounded every year (in ₹).
37. 37.A scooter is worth ₹56300. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
38. 38.Find the compound interest on ₹13200 at 5% per year for 2 years, compounded every year (in ₹).
39. 39.A town has 24700 people. The population grows by 10% every year. What will the population be after 2 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹35000 at 10% per year for 2 years (in ₹)?

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