Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 501 · 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 amount will ₹16200 grow to in 1 year at 12% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹14400 at 20% per year for 2 years, compounded every year (in ₹).
3. 3.Find the compound interest on ₹3500 at 10% per year for 1 year, compounded every year (in ₹).
4. 4.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹46500 at 20% per year for 3 years, compounded every year (in ₹).
6. 6.What amount will ₹49200 grow to in 2 years at 5% per year compound interest (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹18400 at 5% per year for 2 years (in ₹)?
8. 8.What is the difference between the compound interest and the simple interest on ₹40000 at 12% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹29300 at 10% per year for 2 years (in ₹)?
10. 10.What amount will ₹36400 grow to in 2 years at 10% per year compound interest (in ₹)?
11. 11.A scooter is worth ₹26000. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
12. 12.Find the compound interest on ₹37000 at 20% per year for 3 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
14. 14.A scooter is worth ₹8000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
15. 15.A town has 12500 people. The population grows by 8% every year. What will the population be after 2 years?
16. 16.Find the compound interest on ₹56000 at 5% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹10700 at 20% per year for 2 years, compounded every year (in ₹).
18. 18.Find the compound interest on ₹3800 at 8% per year for 1 year, compounded every year (in ₹).
19. 19.What is the difference between the compound interest and the simple interest on ₹35000 at 4% per year for 2 years (in ₹)?
20. 20.A town has 23000 people. The population grows by 20% every year. What will the population be after 2 years?
21. 21.Find the compound interest on ₹3000 at 20% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹5200 at 20% per year for 2 years (in ₹)?
23. 23.A town has 25000 people. The population grows by 12% every year. What will the population be after 1 year?
24. 24.A town has 22000 people. The population grows by 25% every year. What will the population be after 2 years?
25. 25.Find the compound interest on ₹28000 at 5% per year for 2 years, compounded every year (in ₹).
26. 26.What amount will ₹7200 grow to in 2 years at 5% per year compound interest (in ₹)?
27. 27.What amount will ₹60000 grow to in 2 years at 12% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹41600 at 25% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹32000 at 5% per year for 3 years, compounded every year (in ₹).
30. 30.What amount will ₹43400 grow to in 1 year at 5% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹19000 at 20% per year for 2 years (in ₹)?
32. 32.Find the compound interest on ₹9100 at 10% per year for 2 years, compounded every year (in ₹).
33. 33.What amount will ₹27200 grow to in 3 years at 25% per year compound interest (in ₹)?
34. 34.Find the compound interest on ₹2100 at 20% per year for 1 year, compounded every year (in ₹).
35. 35.What amount will ₹48000 grow to in 2 years at 15% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹37600 at 25% per year for 1 year, compounded every year (in ₹).
37. 37.A scooter is worth ₹25700. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
38. 38.Find the compound interest on ₹40000 at 25% per year for 3 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹50400 at 25% per year for 2 years (in ₹)?
40. 40.What amount will ₹9200 grow to in 2 years at 5% per year compound interest (in ₹)?

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