Given:
The ratio of the length to the width of a rectangle is 10:6.
Perimeter = 160 meters
To find:
The measure of the width.
Solution:
Let the length and width of the rectangle be 10x and 6x respectively.
Perimeter of a rectangle is

where, l is length and w is width.
Putting P=160, l=10x and w=6x, we get



Divide both sides by 32.


Now,



Therefore, the width of the rectangle is 30 meters.