Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 962 · 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 ₹18900 grow to in 1 year at 5% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹30500 at 10% per year for 2 years (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
5. 5.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
6. 6.A town has 48000 people. The population grows by 20% every year. What will the population be after 3 years?
7. 7.A scooter is worth ₹42200. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
8. 8.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
9. 9.A town has 22000 people. The population grows by 5% every year. What will the population be after 2 years?
10. 10.What amount will ₹7200 grow to in 2 years at 25% per year compound interest (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹30800 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹57300 at 25% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹48000 grow to in 3 years at 15% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹50000 at 12% per year for 2 years (in ₹)?
15. 15.What amount will ₹8000 grow to in 1 year at 12% per year compound interest (in ₹)?
16. 16.Find the compound interest on ₹33800 at 12% per year for 1 year, compounded every year (in ₹).
17. 17.Find the compound interest on ₹29600 at 15% per year for 2 years, compounded every year (in ₹).
18. 18.A town has 2500 people. The population grows by 4% every year. What will the population be after 2 years?
19. 19.Find the compound interest on ₹42500 at 4% per year for 2 years, compounded every year (in ₹).
20. 20.What amount will ₹22800 grow to in 1 year at 4% per year compound interest (in ₹)?
21. 21.Find the compound interest on ₹29100 at 10% per year for 2 years, compounded every year (in ₹).
22. 22.A town has 52000 people. The population grows by 5% every year. What will the population be after 2 years?
23. 23.What is the difference between the compound interest and the simple interest on ₹41600 at 5% per year for 2 years (in ₹)?
24. 24.A town has 40000 people. The population grows by 8% every year. What will the population be after 2 years?
25. 25.A scooter is worth ₹25900. Its value falls by 12% every year. What will it be worth after 1 year (in ₹)?
26. 26.A town has 9600 people. The population grows by 5% every year. What will the population be after 2 years?
27. 27.Find the compound interest on ₹5700 at 12% per year for 1 year, compounded every year (in ₹).
28. 28.A scooter is worth ₹41000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
29. 29.A town has 28800 people. The population grows by 25% every year. What will the population be after 3 years?
30. 30.Find the compound interest on ₹56000 at 15% per year for 3 years, compounded every year (in ₹).
31. 31.What is the difference between the compound interest and the simple interest on ₹36000 at 25% per year for 2 years (in ₹)?
32. 32.What amount will ₹25600 grow to in 3 years at 25% per year compound interest (in ₹)?
33. 33.A scooter is worth ₹6500. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
34. 34.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
35. 35.What amount will ₹58000 grow to in 2 years at 5% per year compound interest (in ₹)?
36. 36.A scooter is worth ₹55000. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
37. 37.Find the compound interest on ₹9000 at 10% per year for 3 years, compounded every year (in ₹).
38. 38.What amount will ₹38800 grow to in 2 years at 15% per year compound interest (in ₹)?
39. 39.Find the compound interest on ₹36900 at 10% per year for 2 years, compounded every year (in ₹).
40. 40.What amount will ₹31000 grow to in 1 year at 4% per year compound interest (in ₹)?

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