The ratio between the perimeter and the width of a rectangle is 5:1. If the area of the rectangle is 150 square centimeters, what is the length of the rectangle in centimeters?  Choose the correct answer
A) 15
B) 16
C) 17
D) 18
E) 19
Perimeter = 2(W+L) = 5W   3W = 2L   W = 2L/3   WL = 150   2L^2/3 = 150   L^2 = 225   L = 15 cm   The answer is 15.
<result>A</result>
The ratio between the perimeter and the width of a rectangle is 5:1. If the area of the rectangle is 150 square centimeters, what is the length of the rectangle in centimeters?