Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 183 · 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 scooter is worth ₹28400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
2. 2.What amount will ₹25600 grow to in 1 year at 15% per year compound interest (in ₹)?
3. 3.What amount will ₹30500 grow to in 1 year at 8% per year compound interest (in ₹)?
4. 4.Find the compound interest on ₹12000 at 10% per year for 3 years, compounded every year (in ₹).
5. 5.Find the compound interest on ₹55000 at 4% per year for 2 years, compounded every year (in ₹).
6. 6.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
7. 7.What is the difference between the compound interest and the simple interest on ₹28600 at 20% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹50000 at 10% per year for 3 years, compounded every year (in ₹).
9. 9.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹11600 at 5% per year for 2 years (in ₹)?
11. 11.What amount will ₹20500 grow to in 1 year at 5% per year compound interest (in ₹)?
12. 12.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
13. 13.Find the compound interest on ₹40000 at 4% per year for 1 year, compounded every year (in ₹).
14. 14.What amount will ₹33200 grow to in 2 years at 15% per year compound interest (in ₹)?
15. 15.A town has 54400 people. The population grows by 4% every year. What will the population be after 1 year?
16. 16.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
17. 17.A town has 17400 people. The population grows by 12% every year. What will the population be after 1 year?
18. 18.A scooter is worth ₹12000. Its value falls by 10% 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 ₹32500 at 4% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹33200 at 25% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹2500 at 4% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹50000 at 8% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹26800 at 5% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹18400 at 15% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹18000 at 10% per year for 1 year, compounded every year (in ₹).
26. 26.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
27. 27.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
28. 28.A scooter is worth ₹11100. Its value falls by 20% every year. What will it be worth after 1 year (in ₹)?
29. 29.Find the compound interest on ₹6800 at 5% per year for 2 years, compounded every year (in ₹).
30. 30.A scooter is worth ₹46400. Its value falls by 20% every year. What will it be worth after 2 years (in ₹)?
31. 31.A town has 12000 people. The population grows by 10% every year. What will the population be after 3 years?
32. 32.A scooter is worth ₹52800. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
33. 33.What amount will ₹19100 grow to in 1 year at 15% per year compound interest (in ₹)?
34. 34.A town has 46600 people. The population grows by 8% every year. What will the population be after 1 year?
35. 35.What amount will ₹12600 grow to in 1 year at 10% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹46700 at 15% per year for 1 year, compounded every year (in ₹).
37. 37.What is the difference between the compound interest and the simple interest on ₹37200 at 5% per year for 2 years (in ₹)?
38. 38.What amount will ₹13600 grow to in 2 years at 5% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹49200 at 5% per year for 2 years (in ₹)?
40. 40.What amount will ₹9600 grow to in 3 years at 25% per year compound interest (in ₹)?

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