SOLUTION
If the width of a pool is 60 ft and the perimeter is 200 ft.
How long is the pool?
Given the perimeter = 200 ft
Width = 60 ft
Length = x
Perimeter = 2 ( L + W )
200 = 2 ( L + 60 )
Divide both sides by 2, we have :
100 = L + 60
L = 100 - 60
L = 40 ft.......................OPTION A
