Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 253 · 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.A town has 49000 people. The population grows by 25% every year. What will the population be after 1 year?
2. 2.What amount will ₹33200 grow to in 1 year at 12% per year compound interest (in ₹)?
3. 3.Find the compound interest on ₹12000 at 5% per year for 2 years, compounded every year (in ₹).
4. 4.What amount will ₹26900 grow to in 1 year at 4% per year compound interest (in ₹)?
5. 5.What amount will ₹46500 grow to in 2 years at 20% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹37500 at 4% per year for 2 years (in ₹)?
7. 7.What amount will ₹17200 grow to in 1 year at 25% per year compound interest (in ₹)?
8. 8.What amount will ₹56300 grow to in 1 year at 12% per year compound interest (in ₹)?
9. 9.A scooter is worth ₹40000. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
10. 10.Find the compound interest on ₹32000 at 15% per year for 3 years, compounded every year (in ₹).
11. 11.A town has 41200 people. The population grows by 10% every year. What will the population be after 1 year?
12. 12.Find the compound interest on ₹52700 at 15% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹6800 grow to in 2 years at 5% per year compound interest (in ₹)?
14. 14.Find the compound interest on ₹24000 at 5% per year for 3 years, compounded every year (in ₹).
15. 15.What is the difference between the compound interest and the simple interest on ₹51300 at 20% per year for 2 years (in ₹)?
16. 16.A town has 16400 people. The population grows by 15% every year. What will the population be after 2 years?
17. 17.A scooter is worth ₹40000. Its value falls by 15% every year. What will it be worth after 3 years (in ₹)?
18. 18.Find the compound interest on ₹12400 at 5% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹13000 at 15% per year for 1 year, compounded every year (in ₹).
20. 20.A town has 32800 people. The population grows by 8% every year. What will the population be after 1 year?
21. 21.What amount will ₹13500 grow to in 3 years at 20% per year compound interest (in ₹)?
22. 22.What amount will ₹22500 grow to in 2 years at 8% per year compound interest (in ₹)?
23. 23.Find the compound interest on ₹56000 at 25% per year for 2 years, compounded every year (in ₹).
24. 24.A scooter is worth ₹27500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹20600 at 10% per year for 2 years (in ₹)?
26. 26.A scooter is worth ₹8100. Its value falls by 8% every year. What will it be worth after 1 year (in ₹)?
27. 27.A town has 30300 people. The population grows by 5% every year. What will the population be after 1 year?
28. 28.Find the compound interest on ₹27500 at 8% per year for 2 years, compounded every year (in ₹).
29. 29.What amount will ₹18500 grow to in 1 year at 25% per year compound interest (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹57500 at 4% per year for 2 years (in ₹)?
31. 31.A scooter is worth ₹28000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹6400 at 5% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹2500 at 8% per year for 2 years, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹9200 at 20% per year for 2 years (in ₹)?
35. 35.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹22500 at 12% per year for 2 years (in ₹)?
37. 37.What is the difference between the compound interest and the simple interest on ₹35000 at 8% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
39. 39.What is the difference between the compound interest and the simple interest on ₹17600 at 5% per year for 2 years (in ₹)?
40. 40.Find the compound interest on ₹57000 at 10% per year for 3 years, compounded every year (in ₹).

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