Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 37 · 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 ₹43100 at 4% per year for 1 year, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
3. 3.What amount will ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹37100 at 25% per year for 1 year, compounded every year (in ₹).
5. 5.A scooter is worth ₹54800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
6. 6.A scooter is worth ₹50800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
7. 7.A scooter is worth ₹5800. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
8. 8.Find the compound interest on ₹44300 at 25% per year for 1 year, compounded every year (in ₹).
9. 9.What amount will ₹10000 grow to in 2 years at 4% per year compound interest (in ₹)?
10. 10.A town has 55000 people. The population grows by 4% every year. What will the population be after 2 years?
11. 11.What is the difference between the compound interest and the simple interest on ₹57600 at 5% per year for 2 years (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹21200 at 5% per year for 2 years (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹2200 at 20% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
16. 16.A scooter is worth ₹60000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
17. 17.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
18. 18.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
19. 19.What amount will ₹31800 grow to in 1 year at 10% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹34800 at 25% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹39200 at 5% per year for 2 years (in ₹)?
22. 22.A scooter is worth ₹53100. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
23. 23.Find the compound interest on ₹7500 at 8% per year for 2 years, compounded every year (in ₹).
24. 24.A scooter is worth ₹26500. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
25. 25.What amount will ₹6600 grow to in 2 years at 20% per year compound interest (in ₹)?
26. 26.What amount will ₹34500 grow to in 2 years at 10% per year compound interest (in ₹)?
27. 27.What amount will ₹17500 grow to in 2 years at 8% per year compound interest (in ₹)?
28. 28.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
29. 29.A scooter is worth ₹49800. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹5600 at 25% per year for 2 years (in ₹)?
31. 31.What amount will ₹5000 grow to in 2 years at 4% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹20800 at 25% per year for 3 years, compounded every year (in ₹).
33. 33.What amount will ₹23500 grow to in 1 year at 25% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹34500 at 10% per year for 2 years (in ₹)?
35. 35.What amount will ₹7500 grow to in 2 years at 12% per year compound interest (in ₹)?
36. 36.A scooter is worth ₹18000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
37. 37.What amount will ₹49000 grow to in 1 year at 5% per year compound interest (in ₹)?
38. 38.A scooter is worth ₹57500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
39. 39.A town has 37500 people. The population grows by 12% every year. What will the population be after 2 years?
40. 40.Find the compound interest on ₹59900 at 10% per year for 2 years, compounded every year (in ₹).

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