Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 310 · 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 ₹14200 grow to in 1 year at 10% per year compound interest (in ₹)?
2. 2.What is the difference between the compound interest and the simple interest on ₹50000 at 4% per year for 2 years (in ₹)?
3. 3.A scooter is worth ₹42000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
4. 4.Find the compound interest on ₹25300 at 10% per year for 1 year, compounded every year (in ₹).
5. 5.What amount will ₹55900 grow to in 1 year at 5% per year compound interest (in ₹)?
6. 6.Find the compound interest on ₹50000 at 10% per year for 3 years, compounded every year (in ₹).
7. 7.What amount will ₹11800 grow to in 1 year at 4% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹14900 at 10% per year for 2 years, compounded every year (in ₹).
9. 9.A town has 26100 people. The population grows by 20% every year. What will the population be after 1 year?
10. 10.Find the compound interest on ₹50800 at 10% per year for 1 year, compounded every year (in ₹).
11. 11.What is the difference between the compound interest and the simple interest on ₹60000 at 4% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹37200 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹30700 at 5% per year for 1 year, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹27200 at 25% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹40000 at 5% per year for 3 years, compounded every year (in ₹).
17. 17.A town has 53000 people. The population grows by 10% every year. What will the population be after 2 years?
18. 18.A scooter is worth ₹34300. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹58000 at 15% per year for 2 years (in ₹)?
20. 20.A town has 58000 people. The population grows by 10% every year. What will the population be after 1 year?
21. 21.Find the compound interest on ₹53700 at 8% per year for 1 year, compounded every year (in ₹).
22. 22.What is the difference between the compound interest and the simple interest on ₹44700 at 10% per year for 2 years (in ₹)?
23. 23.Find the compound interest on ₹40000 at 4% per year for 2 years, compounded every year (in ₹).
24. 24.What is the difference between the compound interest and the simple interest on ₹12500 at 12% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
26. 26.What amount will ₹20100 grow to in 1 year at 8% per year compound interest (in ₹)?
27. 27.Find the compound interest on ₹44900 at 10% per year for 1 year, compounded every year (in ₹).
28. 28.A scooter is worth ₹16000. Its value falls by 5% every year. What will it be worth after 3 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹8800 at 25% per year for 2 years (in ₹)?
30. 30.A town has 16000 people. The population grows by 5% every year. What will the population be after 3 years?
31. 31.What is the difference between the compound interest and the simple interest on ₹32000 at 10% per year for 2 years (in ₹)?
32. 32.What is the difference between the compound interest and the simple interest on ₹33000 at 20% per year for 2 years (in ₹)?
33. 33.Find the compound interest on ₹19000 at 5% per year for 1 year, compounded every year (in ₹).
34. 34.What is the difference between the compound interest and the simple interest on ₹25600 at 25% per year for 2 years (in ₹)?
35. 35.What is the difference between the compound interest and the simple interest on ₹52400 at 15% per year for 2 years (in ₹)?
36. 36.What amount will ₹12500 grow to in 1 year at 10% per year compound interest (in ₹)?
37. 37.What amount will ₹10000 grow to in 2 years at 8% per year compound interest (in ₹)?
38. 38.Find the compound interest on ₹27600 at 5% per year for 2 years, compounded every year (in ₹).
39. 39.A town has 12800 people. The population grows by 25% every year. What will the population be after 3 years?
40. 40.What is the difference between the compound interest and the simple interest on ₹42500 at 4% per year for 2 years (in ₹)?

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