Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 972 · 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 ₹49800 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 ₹26800 at 25% per year for 2 years (in ₹)?
3. 3.Find the compound interest on ₹19300 at 20% per year for 2 years, compounded every year (in ₹).
4. 4.What amount will ₹33200 grow to in 2 years at 5% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹7800 at 10% per year for 1 year, compounded every year (in ₹).
6. 6.Find the compound interest on ₹11400 at 12% per year for 1 year, compounded every year (in ₹).
7. 7.Find the compound interest on ₹3100 at 20% per year for 2 years, compounded every year (in ₹).
8. 8.What is the difference between the compound interest and the simple interest on ₹12000 at 5% per year for 2 years (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹10800 at 25% per year for 2 years (in ₹)?
10. 10.A scooter is worth ₹14100. Its value falls by 25% every year. What will it be worth after 1 year (in ₹)?
11. 11.What amount will ₹24000 grow to in 3 years at 15% per year compound interest (in ₹)?
12. 12.Find the compound interest on ₹38500 at 5% per year for 1 year, compounded every year (in ₹).
13. 13.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
14. 14.What amount will ₹57500 grow to in 2 years at 8% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹44400 at 15% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹52200 at 10% per year for 1 year, compounded every year (in ₹).
17. 17.What amount will ₹39200 grow to in 1 year at 15% per year compound interest (in ₹)?
18. 18.Find the compound interest on ₹2400 at 25% per year for 2 years, compounded every year (in ₹).
19. 19.Find the compound interest on ₹8000 at 5% per year for 3 years, compounded every year (in ₹).
20. 20.Find the compound interest on ₹19100 at 10% per year for 2 years, compounded every year (in ₹).
21. 21.What is the difference between the compound interest and the simple interest on ₹57500 at 8% per year for 2 years (in ₹)?
22. 22.What amount will ₹44400 grow to in 2 years at 10% per year compound interest (in ₹)?
23. 23.What amount will ₹34800 grow to in 2 years at 15% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹24000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹12500 at 8% per year for 2 years (in ₹)?
26. 26.A town has 2500 people. The population grows by 12% every year. What will the population be after 1 year?
27. 27.What amount will ₹12800 grow to in 1 year at 15% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹30900 at 10% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹16000 at 5% per year for 2 years (in ₹)?
30. 30.What amount will ₹51700 grow to in 1 year at 20% per year compound interest (in ₹)?
31. 31.What is the difference between the compound interest and the simple interest on ₹9800 at 10% per year for 2 years (in ₹)?
32. 32.A town has 35500 people. The population grows by 25% every year. What will the population be after 1 year?
33. 33.Find the compound interest on ₹5600 at 12% per year for 1 year, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹12500 at 4% per year for 2 years (in ₹)?
35. 35.What amount will ₹30000 grow to in 2 years at 12% per year compound interest (in ₹)?
36. 36.A town has 29600 people. The population grows by 15% every year. What will the population be after 2 years?
37. 37.What is the difference between the compound interest and the simple interest on ₹8900 at 20% per year for 2 years (in ₹)?
38. 38.A scooter is worth ₹58300. Its value falls by 10% every year. What will it be worth after 2 years (in ₹)?
39. 39.What amount will ₹40000 grow to in 2 years at 8% per year compound interest (in ₹)?
40. 40.A town has 35000 people. The population grows by 12% every year. What will the population be after 2 years?

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