Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 777 · 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 ₹34300 grow to in 1 year at 8% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹30900 at 25% per year for 1 year, compounded every year (in ₹).
3. 3.What amount will ₹31700 grow to in 1 year at 12% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹54400 at 5% per year for 2 years, compounded every year (in ₹).
5. 5.What is the difference between the compound interest and the simple interest on ₹24400 at 5% per year for 2 years (in ₹)?
6. 6.A town has 34900 people. The population grows by 25% every year. What will the population be after 1 year?
7. 7.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
8. 8.A town has 39000 people. The population grows by 10% every year. What will the population be after 3 years?
9. 9.A town has 12100 people. The population grows by 4% every year. What will the population be after 1 year?
10. 10.What amount will ₹31200 grow to in 1 year at 10% per year compound interest (in ₹)?
11. 11.A town has 2900 people. The population grows by 8% every year. What will the population be after 1 year?
12. 12.A scooter is worth ₹21800. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
13. 13.Find the compound interest on ₹54400 at 25% per year for 3 years, compounded every year (in ₹).
14. 14.A scooter is worth ₹26000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
15. 15.A town has 18000 people. The population grows by 5% every year. What will the population be after 2 years?
16. 16.What amount will ₹12500 grow to in 2 years at 12% per year compound interest (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
18. 18.A scooter is worth ₹6000. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹6900 at 10% per year for 2 years (in ₹)?
20. 20.A town has 22000 people. The population grows by 5% every year. What will the population be after 2 years?
21. 21.Find the compound interest on ₹40000 at 25% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹22500 at 8% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹40800 at 15% per year for 2 years (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹47500 at 4% per year for 2 years (in ₹)?
25. 25.What amount will ₹3100 grow to in 1 year at 4% per year compound interest (in ₹)?
26. 26.Find the compound interest on ₹35200 at 25% per year for 3 years, compounded every year (in ₹).
27. 27.Find the compound interest on ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹45600 at 25% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹48300 at 10% per year for 2 years, compounded every year (in ₹).
30. 30.What is the difference between the compound interest and the simple interest on ₹51600 at 10% per year for 2 years (in ₹)?
31. 31.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
32. 32.What amount will ₹32000 grow to in 3 years at 15% per year compound interest (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹56400 at 15% per year for 2 years (in ₹)?
34. 34.A scooter is worth ₹22000. Its value falls by 25% every year. What will it be worth after 2 years (in ₹)?
35. 35.What amount will ₹37300 grow to in 1 year at 15% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹41200 at 15% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹55900 grow to in 1 year at 12% per year compound interest (in ₹)?
38. 38.A town has 56000 people. The population grows by 5% every year. What will the population be after 3 years?
39. 39.A scooter is worth ₹57500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
40. 40.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).

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