Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 166 · 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 ₹38400 at 5% per year for 2 years (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹36400 at 5% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹12000 at 20% per year for 2 years (in ₹)?
5. 5.What is the difference between the compound interest and the simple interest on ₹6800 at 15% per year for 2 years (in ₹)?
6. 6.Find the compound interest on ₹10500 at 20% per year for 3 years, compounded every year (in ₹).
7. 7.Find the compound interest on ₹43200 at 25% per year for 3 years, compounded every year (in ₹).
8. 8.A town has 44700 people. The population grows by 8% every year. What will the population be after 1 year?
9. 9.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
10. 10.What amount will ₹11200 grow to in 3 years at 25% per year compound interest (in ₹)?
11. 11.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
12. 12.A scooter is worth ₹2500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
13. 13.What amount will ₹39200 grow to in 2 years at 5% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹48600 at 5% per year for 1 year, compounded every year (in ₹).
15. 15.What amount will ₹6800 grow to in 1 year at 15% per year compound interest (in ₹)?
16. 16.A scooter is worth ₹12500. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹34800 at 5% per year for 2 years (in ₹)?
18. 18.What amount will ₹25000 grow to in 2 years at 4% per year compound interest (in ₹)?
19. 19.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
20. 20.What amount will ₹49500 grow to in 1 year at 10% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹36000 at 10% per year for 3 years, compounded every year (in ₹).
22. 22.What amount will ₹22600 grow to in 1 year at 25% per year compound interest (in ₹)?
23. 23.What amount will ₹60000 grow to in 2 years at 8% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹60000 at 8% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹50500 at 15% per year for 1 year, compounded every year (in ₹).
26. 26.What is the difference between the compound interest and the simple interest on ₹28100 at 20% per year for 2 years (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹32000 at 5% per year for 2 years (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹24800 at 15% per year for 2 years (in ₹)?
29. 29.A town has 12500 people. The population grows by 4% every year. What will the population be after 2 years?
30. 30.A scooter is worth ₹49200. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹35000 at 10% per year for 2 years (in ₹)?
32. 32.A scooter is worth ₹22500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
33. 33.A town has 49600 people. The population grows by 5% every year. What will the population be after 2 years?
34. 34.A scooter is worth ₹52800. Its value falls by 15% every year. What will it be worth after 2 years (in ₹)?
35. 35.Find the compound interest on ₹40000 at 15% per year for 3 years, compounded every year (in ₹).
36. 36.A scooter is worth ₹5000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
37. 37.What amount will ₹35800 grow to in 1 year at 10% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹54000 at 25% per year for 2 years (in ₹)?
40. 40.What amount will ₹18800 grow to in 2 years at 20% per year compound interest (in ₹)?

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