Task: Question Answering
Input (English): Problem: 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 ? 
Options: a ) 15 , b ) 16 , c ) 17 , d ) 18 , e ) 19
Output (English): a