Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 881 · 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 ₹27500 at 4% per year for 2 years, compounded every year (in ₹).
2. 2.A scooter is worth ₹49000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹3200 at 5% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹27800 at 12% per year for 1 year, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹17500 at 8% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹43600 at 25% per year for 1 year, compounded every year (in ₹).
7. 7.Find the compound interest on ₹30000 at 12% per year for 2 years, compounded every year (in ₹).
8. 8.Find the compound interest on ₹6400 at 25% per year for 2 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹27500 at 8% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹9600 at 25% per year for 3 years, compounded every year (in ₹).
11. 11.What amount will ₹32200 grow to in 1 year at 10% per year compound interest (in ₹)?
12. 12.What amount will ₹35200 grow to in 1 year at 4% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹4700 at 10% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹14000 at 15% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹12400 at 15% per year for 2 years, compounded every year (in ₹).
16. 16.What amount will ₹31800 grow to in 1 year at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹17500 at 8% per year for 2 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹30000 at 8% per year for 2 years, compounded every year (in ₹).
19. 19.A town has 45000 people. The population grows by 4% every year. What will the population be after 2 years?
20. 20.Find the compound interest on ₹6400 at 20% per year for 1 year, compounded every year (in ₹).
21. 21.A scooter is worth ₹8000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹23600 at 5% per year for 2 years (in ₹)?
23. 23.What amount will ₹29100 grow to in 1 year at 20% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹44000 at 10% per year for 3 years, compounded every year (in ₹).
25. 25.Find the compound interest on ₹30200 at 8% per year for 1 year, compounded every year (in ₹).
26. 26.A town has 16400 people. The population grows by 15% 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 ₹18400 at 25% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹54600. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
29. 29.What amount will ₹17900 grow to in 1 year at 8% per year compound interest (in ₹)?
30. 30.What amount will ₹53100 grow to in 1 year at 12% per year compound interest (in ₹)?
31. 31.What amount will ₹52500 grow to in 2 years at 8% per year compound interest (in ₹)?
32. 32.A town has 44800 people. The population grows by 20% every year. What will the population be after 1 year?
33. 33.Find the compound interest on ₹59500 at 20% per year for 3 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹44000 at 20% per year for 3 years, compounded every year (in ₹).
35. 35.What is the difference between the compound interest and the simple interest on ₹30000 at 12% per year for 2 years (in ₹)?
36. 36.A town has 35200 people. The population grows by 25% every year. What will the population be after 3 years?
37. 37.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹20800 at 15% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹33000 at 25% per year for 1 year, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?

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