Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 469 · 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 ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
2. 2.What is the difference between the compound interest and the simple interest on ₹45800 at 20% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹7500 at 20% per year for 3 years, compounded every year (in ₹).
4. 4.A scooter is worth ₹38900. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
5. 5.A town has 38000 people. The population grows by 5% every year. What will the population be after 2 years?
6. 6.A scooter is worth ₹36000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
7. 7.What amount will ₹20300 grow to in 1 year at 4% per year compound interest (in ₹)?
8. 8.A scooter is worth ₹21500. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
9. 9.Find the compound interest on ₹27000 at 20% per year for 1 year, compounded every year (in ₹).
10. 10.What is the difference between the compound interest and the simple interest on ₹11600 at 15% per year for 2 years (in ₹)?
11. 11.A town has 2300 people. The population grows by 15% every year. What will the population be after 1 year?
12. 12.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
13. 13.A town has 29800 people. The population grows by 25% every year. What will the population be after 1 year?
14. 14.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹52500 at 4% per year for 2 years (in ₹)?
16. 16.What amount will ₹10000 grow to in 3 years at 10% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹57200 at 15% per year for 2 years (in ₹)?
18. 18.A scooter is worth ₹19400. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
19. 19.What amount will ₹11500 grow to in 1 year at 8% per year compound interest (in ₹)?
20. 20.What amount will ₹54200 grow to in 1 year at 25% per year compound interest (in ₹)?
21. 21.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹25400 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹9600 grow to in 3 years at 25% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹19500. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
25. 25.What amount will ₹3000 grow to in 3 years at 10% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹30000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
27. 27.What amount will ₹6200 grow to in 1 year at 8% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹5200 at 20% per year for 1 year, compounded every year (in ₹).
29. 29.What amount will ₹27500 grow to in 2 years at 12% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹20800 at 5% per year for 2 years (in ₹)?
31. 31.What amount will ₹26600 grow to in 1 year at 8% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹21600 at 25% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
34. 34.A town has 17500 people. The population grows by 8% every year. What will the population be after 2 years?
35. 35.What is the difference between the compound interest and the simple interest on ₹7500 at 8% per year for 2 years (in ₹)?
36. 36.What amount will ₹16000 grow to in 3 years at 20% per year compound interest (in ₹)?
37. 37.A scooter is worth ₹5200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
38. 38.Find the compound interest on ₹42500 at 10% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹7400 grow to in 1 year at 12% per year compound interest (in ₹)?
40. 40.What amount will ₹20000 grow to in 2 years at 8% per year compound interest (in ₹)?

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