Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 900 · 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 ₹31600 at 8% per year for 1 year, compounded every year (in ₹).
2. 2.A scooter is worth ₹25400. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
3. 3.Find the compound interest on ₹46000 at 5% per year for 2 years, compounded every year (in ₹).
4. 4.What is the difference between the compound interest and the simple interest on ₹59600 at 15% per year for 2 years (in ₹)?
5. 5.What amount will ₹4800 grow to in 2 years at 25% per year compound interest (in ₹)?
6. 6.What amount will ₹30200 grow to in 2 years at 20% per year compound interest (in ₹)?
7. 7.What amount will ₹48600 grow to in 2 years at 20% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹56000 at 15% per year for 2 years, compounded every year (in ₹).
9. 9.What amount will ₹51400 grow to in 1 year at 25% per year compound interest (in ₹)?
10. 10.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
11. 11.A town has 36300 people. The population grows by 10% every year. What will the population be after 2 years?
12. 12.Find the compound interest on ₹57600 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹12000 at 15% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹20000 at 12% per year for 2 years, compounded every year (in ₹).
15. 15.Find the compound interest on ₹8700 at 15% per year for 1 year, compounded every year (in ₹).
16. 16.Find the compound interest on ₹18500 at 25% per year for 1 year, compounded every year (in ₹).
17. 17.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹33200 at 5% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹30000 at 8% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹9600 at 5% per year for 2 years (in ₹)?
21. 21.What amount will ₹60000 grow to in 2 years at 4% per year compound interest (in ₹)?
22. 22.Find the compound interest on ₹7600 at 20% per year for 2 years, compounded every year (in ₹).
23. 23.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
24. 24.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹17600. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
26. 26.What amount will ₹25200 grow to in 2 years at 5% per year compound interest (in ₹)?
27. 27.What amount will ₹45700 grow to in 1 year at 5% per year compound interest (in ₹)?
28. 28.A town has 12200 people. The population grows by 15% every year. What will the population be after 1 year?
29. 29.What amount will ₹4800 grow to in 3 years at 25% per year compound interest (in ₹)?
30. 30.A town has 3900 people. The population grows by 25% every year. What will the population be after 1 year?
31. 31.Find the compound interest on ₹55000 at 20% per year for 3 years, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹47200 at 25% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
34. 34.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
35. 35.What amount will ₹5000 grow to in 2 years at 12% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹39300 at 4% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹59600 grow to in 2 years at 25% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹45800 at 20% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹48600 at 4% per year for 1 year, compounded every year (in ₹).
40. 40.Find the compound interest on ₹8400 at 15% per year for 2 years, compounded every year (in ₹).

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