Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 528 · 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 ₹24400. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
2. 2.What amount will ₹45200 grow to in 2 years at 25% per year compound interest (in ₹)?
3. 3.A town has 40000 people. The population grows by 25% every year. What will the population be after 3 years?
4. 4.What is the difference between the compound interest and the simple interest on ₹7000 at 20% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹52400 at 5% per year for 2 years (in ₹)?
6. 6.A town has 8400 people. The population grows by 4% every year. What will the population be after 1 year?
7. 7.Find the compound interest on ₹48400 at 12% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹9600 at 15% per year for 2 years (in ₹)?
9. 9.A scooter is worth ₹49400. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
10. 10.What amount will ₹21300 grow to in 1 year at 25% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹55300. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
12. 12.Find the compound interest on ₹40000 at 20% per year for 2 years, compounded every year (in ₹).
13. 13.What amount will ₹53600 grow to in 2 years at 25% per year compound interest (in ₹)?
14. 14.What amount will ₹5500 grow to in 3 years at 20% per year compound interest (in ₹)?
15. 15.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹46800 at 5% per year for 2 years (in ₹)?
17. 17.A scooter is worth ₹10000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹10000 at 12% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹28800 at 25% per year for 2 years (in ₹)?
20. 20.A town has 27200 people. The population grows by 25% every year. What will the population be after 3 years?
21. 21.What is the difference between the compound interest and the simple interest on ₹44400 at 25% per year for 2 years (in ₹)?
22. 22.What amount will ₹55600 grow to in 1 year at 12% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹48000 at 15% per year for 3 years, compounded every year (in ₹).
24. 24.A scooter is worth ₹5000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
25. 25.What amount will ₹35000 grow to in 2 years at 10% per year compound interest (in ₹)?
26. 26.A town has 22500 people. The population grows by 8% every year. What will the population be after 2 years?
27. 27.Find the compound interest on ₹27900 at 15% per year for 1 year, compounded every year (in ₹).
28. 28.A town has 5200 people. The population grows by 10% every year. What will the population be after 1 year?
29. 29.What is the difference between the compound interest and the simple interest on ₹2000 at 15% per year for 2 years (in ₹)?
30. 30.A town has 40000 people. The population grows by 4% every year. What will the population be after 2 years?
31. 31.Find the compound interest on ₹8900 at 12% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹5000 at 12% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹4800 at 5% per year for 2 years (in ₹)?
36. 36.Find the compound interest on ₹42600 at 8% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹8000 at 10% per year for 3 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹7200 at 25% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹44100 grow to in 1 year at 15% per year compound interest (in ₹)?

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