Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 339 · 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 ₹28800 at 10% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹54400 at 25% per year for 1 year, compounded every year (in ₹).
3. 3.What amount will ₹2500 grow to in 2 years at 12% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹41600 at 25% per year for 3 years, compounded every year (in ₹).
5. 5.What amount will ₹30700 grow to in 1 year at 5% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹20900 at 15% per year for 1 year, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹12600 at 10% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹32500 at 4% per year for 2 years, compounded every year (in ₹).
9. 9.A town has 37500 people. The population grows by 4% every year. What will the population be after 2 years?
10. 10.A scooter is worth ₹26000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
11. 11.Find the compound interest on ₹11500 at 20% per year for 3 years, compounded every year (in ₹).
12. 12.What amount will ₹39200 grow to in 2 years at 5% per year compound interest (in ₹)?
13. 13.Find the compound interest on ₹60000 at 4% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹10400 at 25% per year for 2 years (in ₹)?
15. 15.Find the compound interest on ₹44500 at 20% per year for 3 years, compounded every year (in ₹).
16. 16.What amount will ₹38000 grow to in 1 year at 5% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹41300 at 10% per year for 1 year, compounded every year (in ₹).
18. 18.A town has 5000 people. The population grows by 4% every year. What will the population be after 2 years?
19. 19.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
20. 20.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
21. 21.What amount will ₹20000 grow to in 2 years at 8% per year compound interest (in ₹)?
22. 22.A town has 22500 people. The population grows by 12% every year. What will the population be after 2 years?
23. 23.What amount will ₹45000 grow to in 2 years at 8% per year compound interest (in ₹)?
24. 24.Find the compound interest on ₹22900 at 10% per year for 1 year, compounded every year (in ₹).
25. 25.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
26. 26.Find the compound interest on ₹53200 at 5% per year for 2 years, compounded every year (in ₹).
27. 27.What amount will ₹4500 grow to in 1 year at 15% per year compound interest (in ₹)?
28. 28.What amount will ₹19900 grow to in 1 year at 20% per year compound interest (in ₹)?
29. 29.What amount will ₹56100 grow to in 1 year at 8% per year compound interest (in ₹)?
30. 30.A scooter is worth ₹29400. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
31. 31.Find the compound interest on ₹43600 at 10% per year for 1 year, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹55200 at 10% per year for 2 years (in ₹)?
33. 33.What amount will ₹17900 grow to in 1 year at 10% per year compound interest (in ₹)?
34. 34.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
35. 35.Find the compound interest on ₹2100 at 15% per year for 1 year, compounded every year (in ₹).
36. 36.What amount will ₹35700 grow to in 1 year at 10% per year compound interest (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹52500 at 12% per year for 2 years (in ₹)?
38. 38.What amount will ₹9800 grow to in 1 year at 4% per year compound interest (in ₹)?
39. 39.What amount will ₹18000 grow to in 2 years at 20% per year compound interest (in ₹)?
40. 40.Find the compound interest on ₹15300 at 10% per year for 2 years, compounded every year (in ₹).

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