Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 977 · 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 ₹55600. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
2. 2.Find the compound interest on ₹32000 at 25% per year for 3 years, compounded every year (in ₹).
3. 3.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
4. 4.What amount will ₹10000 grow to in 2 years at 8% per year compound interest (in ₹)?
5. 5.What amount will ₹33000 grow to in 3 years at 20% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹15000 at 8% per year for 2 years (in ₹)?
7. 7.What amount will ₹57600 grow to in 2 years at 20% per year compound interest (in ₹)?
8. 8.What amount will ₹30900 grow to in 1 year at 8% per year compound interest (in ₹)?
9. 9.What amount will ₹27000 grow to in 3 years at 10% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
11. 11.What amount will ₹55000 grow to in 2 years at 8% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹15800 at 5% per year for 1 year, compounded every year (in ₹).
13. 13.A town has 12800 people. The population grows by 5% every year. What will the population be after 2 years?
14. 14.A scooter is worth ₹7400. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹14200 at 10% per year for 2 years (in ₹)?
16. 16.What amount will ₹24000 grow to in 3 years at 5% per year compound interest (in ₹)?
17. 17.A town has 52500 people. The population grows by 4% every year. What will the population be after 2 years?
18. 18.A town has 31400 people. The population grows by 12% every year. What will the population be after 1 year?
19. 19.A town has 15200 people. The population grows by 5% every year. What will the population be after 2 years?
20. 20.What amount will ₹32000 grow to in 2 years at 25% per year compound interest (in ₹)?
21. 21.What amount will ₹16000 grow to in 3 years at 15% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹2000 at 15% per year for 2 years (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹18400 at 15% per year for 2 years (in ₹)?
24. 24.What amount will ₹48000 grow to in 3 years at 5% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹32500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
26. 26.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
27. 27.A scooter is worth ₹32000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
28. 28.Find the compound interest on ₹12500 at 4% per year for 2 years, compounded every year (in ₹).
29. 29.What is the difference between the compound interest and the simple interest on ₹49000 at 10% per year for 2 years (in ₹)?
30. 30.What is the difference between the compound interest and the simple interest on ₹2000 at 5% per year for 2 years (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹23800 at 20% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹53200 at 10% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹23500 at 10% per year for 2 years (in ₹)?
34. 34.What amount will ₹27500 grow to in 2 years at 8% per year compound interest (in ₹)?
35. 35.What amount will ₹6900 grow to in 1 year at 20% per year compound interest (in ₹)?
36. 36.A scooter is worth ₹34400. Its value falls by 5% every year. What will it be worth after 2 years (in ₹)?
37. 37.Find the compound interest on ₹10400 at 12% per year for 1 year, compounded every year (in ₹).
38. 38.Find the compound interest on ₹51900 at 20% per year for 2 years, compounded every year (in ₹).
39. 39.Find the compound interest on ₹49900 at 15% per year for 1 year, compounded every year (in ₹).
40. 40.What amount will ₹25600 grow to in 2 years at 5% per year compound interest (in ₹)?

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