Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 835 · 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 ₹5700. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
2. 2.Find the compound interest on ₹27500 at 12% per year for 2 years, compounded every year (in ₹).
3. 3.What amount will ₹40000 grow to in 2 years at 12% per year compound interest (in ₹)?
4. 4.A scooter is worth ₹25000. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹10800 at 5% per year for 2 years (in ₹)?
6. 6.A town has 30000 people. The population grows by 4% every year. What will the population be after 2 years?
7. 7.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
8. 8.A scooter is worth ₹18000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
9. 9.Find the compound interest on ₹12100 at 20% per year for 1 year, compounded every year (in ₹).
10. 10.A scooter is worth ₹55000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
11. 11.A scooter is worth ₹57200. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
12. 12.What amount will ₹17500 grow to in 2 years at 12% per year compound interest (in ₹)?
13. 13.What is the difference between the compound interest and the simple interest on ₹10000 at 8% per year for 2 years (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹55000 at 12% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹57700 at 10% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
17. 17.What amount will ₹12500 grow to in 2 years at 4% per year compound interest (in ₹)?
18. 18.What amount will ₹2500 grow to in 2 years at 8% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹11600 at 5% per year for 1 year, compounded every year (in ₹).
20. 20.What is the difference between the compound interest and the simple interest on ₹46400 at 5% per year for 2 years (in ₹)?
21. 21.What amount will ₹46700 grow to in 1 year at 20% per year compound interest (in ₹)?
22. 22.What amount will ₹18900 grow to in 1 year at 5% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹36700 at 25% per year for 1 year, compounded every year (in ₹).
24. 24.A scooter is worth ₹50500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
25. 25.Find the compound interest on ₹4100 at 15% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹33500 at 20% per year for 2 years, compounded every year (in ₹).
27. 27.A town has 21000 people. The population grows by 8% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹58200 at 10% per year for 2 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹6400 at 5% per year for 2 years (in ₹)?
30. 30.A scooter is worth ₹22500. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
31. 31.Find the compound interest on ₹17500 at 12% per year for 2 years, compounded every year (in ₹).
32. 32.What amount will ₹31200 grow to in 1 year at 12% per year compound interest (in ₹)?
33. 33.Find the compound interest on ₹18900 at 8% per year for 1 year, compounded every year (in ₹).
34. 34.A scooter is worth ₹53900. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹30000 at 4% per year for 2 years (in ₹)?
36. 36.What amount will ₹17000 grow to in 3 years at 10% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹16700 at 15% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹22900 at 10% per year for 1 year, compounded every year (in ₹).
39. 39.Find the compound interest on ₹2800 at 4% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹25000 grow to in 2 years at 8% per year compound interest (in ₹)?

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