Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 464 · 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 is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
2. 2.A town has 10000 people. The population grows by 5% every year. What will the population be after 1 year?
3. 3.What amount will ₹26000 grow to in 1 year at 8% per year compound interest (in ₹)?
4. 4.What is the difference between the compound interest and the simple interest on ₹25800 at 10% per year for 2 years (in ₹)?
5. 5.What amount will ₹37500 grow to in 2 years at 8% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹30500 at 15% per year for 1 year, compounded every year (in ₹).
7. 7.Find the compound interest on ₹52100 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 ₹52800 at 5% per year for 2 years (in ₹)?
9. 9.What amount will ₹42500 grow to in 2 years at 12% per year compound interest (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹34000 at 5% per year for 2 years (in ₹)?
11. 11.What amount will ₹28400 grow to in 2 years at 15% per year compound interest (in ₹)?
12. 12.A town has 26000 people. The population grows by 5% every year. What will the population be after 2 years?
13. 13.What is the difference between the compound interest and the simple interest on ₹25000 at 4% per year for 2 years (in ₹)?
14. 14.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
15. 15.A town has 54400 people. The population grows by 25% every year. What will the population be after 3 years?
16. 16.Find the compound interest on ₹11200 at 25% per year for 3 years, compounded every year (in ₹).
17. 17.Find the compound interest on ₹5700 at 25% per year for 1 year, compounded every year (in ₹).
18. 18.A scooter is worth ₹14000. Its value falls by 5% every year. What will it be worth after 1 year (in ₹)?
19. 19.Find the compound interest on ₹9900 at 5% per year for 1 year, compounded every year (in ₹).
20. 20.What amount will ₹2500 grow to in 2 years at 12% per year compound interest (in ₹)?
21. 21.A town has 59000 people. The population grows by 4% every year. What will the population be after 1 year?
22. 22.Find the compound interest on ₹9500 at 8% per year for 1 year, compounded every year (in ₹).
23. 23.What amount will ₹22600 grow to in 1 year at 12% per year compound interest (in ₹)?
24. 24.What amount will ₹4000 grow to in 3 years at 20% per year compound interest (in ₹)?
25. 25.A scooter is worth ₹57500. Its value falls by 8% every year. What will it be worth after 2 years (in ₹)?
26. 26.What amount will ₹17900 grow to in 1 year at 20% per year compound interest (in ₹)?
27. 27.What amount will ₹53200 grow to in 1 year at 10% per year compound interest (in ₹)?
28. 28.What amount will ₹14200 grow to in 1 year at 15% per year compound interest (in ₹)?
29. 29.A town has 19200 people. The population grows by 15% every year. What will the population be after 2 years?
30. 30.What amount will ₹43300 grow to in 1 year at 20% per year compound interest (in ₹)?
31. 31.A scooter is worth ₹31000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
32. 32.Find the compound interest on ₹60000 at 12% per year for 2 years, compounded every year (in ₹).
33. 33.What is the difference between the compound interest and the simple interest on ₹24800 at 20% per year for 2 years (in ₹)?
34. 34.What amount will ₹11900 grow to in 1 year at 25% per year compound interest (in ₹)?
35. 35.What amount will ₹39000 grow to in 3 years at 10% per year compound interest (in ₹)?
36. 36.A town has 14400 people. The population grows by 4% every year. What will the population be after 1 year?
37. 37.What is the difference between the compound interest and the simple interest on ₹50200 at 20% per year for 2 years (in ₹)?
38. 38.Find the compound interest on ₹29600 at 10% per year for 1 year, compounded every year (in ₹).
39. 39.What amount will ₹6000 grow to in 3 years at 10% per year compound interest (in ₹)?
40. 40.What amount will ₹19000 grow to in 3 years at 10% per year compound interest (in ₹)?

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