Width of the rectangle is 5 units
Explanation:
Let length (l) = l units
Given,
width (b) = l-3 units
Area of rectangle = 40 units
We know,
Area of rectangle = l X b
[tex]40= l(l-3)\\40=l^{2} - 3l\\l^{2} - 3l -40=0\\l=8units[/tex]
If l = 8 units then, b = 8-3 units
b = 5 units
Therefore, width of the rectangle is 5 units.
