Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 378 · 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 12% per year for 2 years (in ₹)?
2. 2.Find the compound interest on ₹55000 at 8% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹7700 at 15% per year for 1 year, compounded every year (in ₹).
4. 4.Find the compound interest on ₹11200 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹38000 at 10% per year for 3 years, compounded every year (in ₹).
6. 6.Find the compound interest on ₹11300 at 5% per year for 1 year, compounded every year (in ₹).
7. 7.Find the compound interest on ₹46000 at 10% per year for 1 year, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹16400 at 25% per year for 2 years (in ₹)?
9. 9.What amount will ₹53200 grow to in 2 years at 15% per year compound interest (in ₹)?
10. 10.What amount will ₹42500 grow to in 2 years at 8% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹57500. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
12. 12.Find the compound interest on ₹44500 at 5% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹13200 at 15% per year for 2 years (in ₹)?
14. 14.What amount will ₹8000 grow to in 2 years at 15% per year compound interest (in ₹)?
15. 15.A scooter is worth ₹14800. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
16. 16.A town has 43500 people. The population grows by 25% every year. What will the population be after 1 year?
17. 17.What is the difference between the compound interest and the simple interest on ₹43700 at 10% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹7600 at 10% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹43400 at 10% per year for 2 years (in ₹)?
20. 20.Find the compound interest on ₹17600 at 25% per year for 3 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹55000 at 8% per year for 2 years (in ₹)?
22. 22.A town has 32500 people. The population grows by 12% every year. What will the population be after 2 years?
23. 23.Find the compound interest on ₹58100 at 10% per year for 1 year, compounded every year (in ₹).
24. 24.What amount will ₹21600 grow to in 2 years at 25% per year compound interest (in ₹)?
25. 25.Find the compound interest on ₹21800 at 20% per year for 1 year, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹7900 at 10% per year for 2 years (in ₹)?
27. 27.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
28. 28.What amount will ₹47700 grow to in 1 year at 15% per year compound interest (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹32100 at 20% per year for 2 years (in ₹)?
30. 30.Find the compound interest on ₹30000 at 12% per year for 2 years, compounded every year (in ₹).
31. 31.Find the compound interest on ₹10800 at 5% per year for 1 year, compounded every year (in ₹).
32. 32.Find the compound interest on ₹48000 at 5% per year for 3 years, compounded every year (in ₹).
33. 33.A town has 12500 people. The population grows by 10% every year. What will the population be after 2 years?
34. 34.Find the compound interest on ₹20400 at 10% per year for 2 years, compounded every year (in ₹).
35. 35.What amount will ₹39400 grow to in 1 year at 4% per year compound interest (in ₹)?
36. 36.What amount will ₹10700 grow to in 1 year at 10% per year compound interest (in ₹)?
37. 37.What amount will ₹19600 grow to in 1 year at 8% per year compound interest (in ₹)?
38. 38.A scooter is worth ₹24400. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
39. 39.A town has 42500 people. The population grows by 4% every year. What will the population be after 2 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?

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