Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 597 · 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 ₹17000 at 10% per year for 3 years, compounded every year (in ₹).
2. 2.A scooter is worth ₹57200. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
3. 3.A scooter is worth ₹22600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
4. 4.What amount will ₹5000 grow to in 1 year at 10% per year compound interest (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹25100 at 10% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹35500 at 5% per year for 1 year, compounded every year (in ₹).
7. 7.What amount will ₹13300 grow to in 2 years at 10% per year compound interest (in ₹)?
8. 8.A town has 56000 people. The population grows by 5% every year. What will the population be after 3 years?
9. 9.A town has 31800 people. The population grows by 20% every year. What will the population be after 2 years?
10. 10.What amount will ₹16600 grow to in 1 year at 20% per year compound interest (in ₹)?
11. 11.What amount will ₹59000 grow to in 2 years at 10% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹19400 at 20% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
14. 14.A town has 42400 people. The population grows by 10% every year. What will the population be after 1 year?
15. 15.What amount will ₹13300 grow to in 1 year at 25% per year compound interest (in ₹)?
16. 16.What amount will ₹43200 grow to in 2 years at 5% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹54800 at 10% per year for 2 years (in ₹)?
18. 18.A scooter is worth ₹16000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
19. 19.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹28400 grow to in 2 years at 25% per year compound interest (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹6100 at 10% per year for 2 years (in ₹)?
22. 22.What amount will ₹43000 grow to in 3 years at 10% per year compound interest (in ₹)?
23. 23.A scooter is worth ₹19000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹45000 at 8% per year for 2 years (in ₹)?
25. 25.What amount will ₹54000 grow to in 2 years at 25% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹58300. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
27. 27.What amount will ₹31700 grow to in 1 year at 25% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹8000 at 10% per year for 3 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹38000 at 25% per year for 2 years (in ₹)?
30. 30.What amount will ₹55000 grow to in 2 years at 8% per year compound interest (in ₹)?
31. 31.What amount will ₹40300 grow to in 1 year at 15% per year compound interest (in ₹)?
32. 32.Find the compound interest on ₹51500 at 20% per year for 3 years, compounded every year (in ₹).
33. 33.Find the compound interest on ₹16000 at 25% per year for 2 years, compounded every year (in ₹).
34. 34.Find the compound interest on ₹27200 at 5% per year for 1 year, compounded every year (in ₹).
35. 35.Find the compound interest on ₹16000 at 15% per year for 3 years, compounded every year (in ₹).
36. 36.What is the difference between the compound interest and the simple interest on ₹2800 at 25% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹13600 at 15% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹45000 at 4% per year for 2 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹8300 at 20% per year for 2 years (in ₹)?
40. 40.A town has 43000 people. The population grows by 10% every year. What will the population be after 3 years?

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