A man could buy a certain number of notebooks for Tk. 300. If each notebook cost is Tk. 5 more, he could have bought 10 notebook less for the same amount .Find the price of each notebook ?
Created: 5 years ago |
Updated: 2 years ago
best des
Let,
Cost of 1 Note book = x tk.
ATQ,
300/x = {300/(x + 5)} + 10
Or, (300/x) – 300/(x + 5) = 10
Or, (300x + 1500 - 300x)/{x(x + 5)} = 10
Or, x(x + 5)10 = 1500
Or, x2 + 5x - 150 = 0
Or, (x + 15)(x - 10) = 0
Or, x≠ - 15, x = 10
ans: 10 tk
Md Azizur Rahman
Founder of Satt
Related Question
View More
Created: 6 years ago |
Updated: 5 days ago
Created: 6 years ago |
Updated: 1 week ago
Created: 6 years ago |
Updated: 1 week ago
Created: 6 years ago |
Updated: 1 week ago
Created: 6 years ago |
Updated: 1 week ago
Promotion
Download Our Mobile Apps
