Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 704 · 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 ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
2. 2.A town has 37200 people. The population grows by 15% every year. What will the population be after 2 years?
3. 3.A town has 25300 people. The population grows by 15% every year. What will the population be after 1 year?
4. 4.Find the compound interest on ₹57600 at 15% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹29900 at 5% per year for 1 year, compounded every year (in ₹).
6. 6.Find the compound interest on ₹13500 at 8% per year for 1 year, compounded every year (in ₹).
7. 7.A town has 30500 people. The population grows by 8% every year. What will the population be after 1 year?
8. 8.Find the compound interest on ₹18000 at 10% per year for 3 years, compounded every year (in ₹).
9. 9.Find the compound interest on ₹15900 at 4% per year for 1 year, compounded every year (in ₹).
10. 10.What amount will ₹17500 grow to in 2 years at 8% per year compound interest (in ₹)?
11. 11.What amount will ₹36000 grow to in 3 years at 20% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹45000 at 8% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹57200 at 5% per year for 2 years (in ₹)?
14. 14.A scooter is worth ₹2400. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
15. 15.What amount will ₹34000 grow to in 3 years at 10% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹58300 at 20% per year for 1 year, compounded every year (in ₹).
17. 17.Find the compound interest on ₹15000 at 10% per year for 3 years, compounded every year (in ₹).
18. 18.A scooter is worth ₹5700. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹40000 at 4% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹40000 at 5% per year for 2 years (in ₹)?
21. 21.Find the compound interest on ₹55000 at 8% per year for 2 years, compounded every year (in ₹).
22. 22.Find the compound interest on ₹38000 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹6800 at 5% per year for 2 years (in ₹)?
25. 25.A scooter is worth ₹57700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
26. 26.A town has 42500 people. The population grows by 8% every year. What will the population be after 2 years?
27. 27.A scooter is worth ₹10300. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
28. 28.Find the compound interest on ₹42700 at 10% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹9000 grow to in 2 years at 20% per year compound interest (in ₹)?
30. 30.What amount will ₹10000 grow to in 2 years at 8% per year compound interest (in ₹)?
31. 31.What amount will ₹56600 grow to in 1 year at 10% per year compound interest (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹4500 at 10% per year for 2 years (in ₹)?
34. 34.What amount will ₹2500 grow to in 2 years at 12% per year compound interest (in ₹)?
35. 35.What amount will ₹52500 grow to in 2 years at 4% per year compound interest (in ₹)?
36. 36.What amount will ₹6400 grow to in 3 years at 25% per year compound interest (in ₹)?
37. 37.Find the compound interest on ₹41600 at 15% per year for 2 years, compounded every year (in ₹).
38. 38.What is the difference between the compound interest and the simple interest on ₹12800 at 5% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
40. 40.What is the difference between the compound interest and the simple interest on ₹38800 at 5% per year for 2 years (in ₹)?

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