Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 750 · 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.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
2. 2.A town has 58000 people. The population grows by 25% every year. What will the population be after 2 years?
3. 3.What is the difference between the compound interest and the simple interest on ₹18800 at 15% per year for 2 years (in ₹)?
4. 4.What amount will ₹54400 grow to in 3 years at 25% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹3900 at 4% per year for 1 year, compounded every year (in ₹).
6. 6.What is the difference between the compound interest and the simple interest on ₹26400 at 15% per year for 2 years (in ₹)?
7. 7.Find the compound interest on ₹12500 at 20% per year for 3 years, compounded every year (in ₹).
8. 8.What amount will ₹27100 grow to in 1 year at 12% per year compound interest (in ₹)?
9. 9.What amount will ₹20300 grow to in 1 year at 25% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹42600 at 20% per year for 2 years (in ₹)?
11. 11.Find the compound interest on ₹15000 at 12% per year for 2 years, compounded every year (in ₹).
12. 12.What amount will ₹60000 grow to in 2 years at 25% per year compound interest (in ₹)?
13. 13.What amount will ₹4800 grow to in 3 years at 25% per year compound interest (in ₹)?
14. 14.A scooter is worth ₹31800. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
15. 15.What amount will ₹8000 grow to in 3 years at 15% per year compound interest (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹55000 at 12% per year for 2 years (in ₹)?
17. 17.A scooter is worth ₹57800. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
18. 18.Find the compound interest on ₹38500 at 5% per year for 1 year, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹45100 at 20% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹54800 at 5% per year for 2 years (in ₹)?
21. 21.A scooter is worth ₹28500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
22. 22.What amount will ₹5100 grow to in 1 year at 4% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹44000 at 10% per year for 3 years, compounded every year (in ₹).
24. 24.Find the compound interest on ₹49900 at 15% per year for 1 year, compounded every year (in ₹).
25. 25.What amount will ₹28500 grow to in 1 year at 20% per year compound interest (in ₹)?
26. 26.A scooter is worth ₹41500. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
27. 27.Find the compound interest on ₹20000 at 8% per year for 2 years, compounded every year (in ₹).
28. 28.Find the compound interest on ₹28400 at 15% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹22500 grow to in 2 years at 4% per year compound interest (in ₹)?
30. 30.Find the compound interest on ₹40000 at 8% per year for 2 years, compounded every year (in ₹).
31. 31.A scooter is worth ₹12500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹7600 at 5% per year for 2 years (in ₹)?
33. 33.A scooter is worth ₹22400. Its value falls by 25% every year. What will it be worth after 3 years (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹30000 at 10% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹16400 at 5% per year for 2 years, compounded every year (in ₹).
36. 36.A scooter is worth ₹54900. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
37. 37.A town has 48000 people. The population grows by 15% every year. What will the population be after 3 years?
38. 38.What is the difference between the compound interest and the simple interest on ₹14800 at 25% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹42200 at 10% per year for 2 years, compounded every year (in ₹).

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