Question 639535
Perimeter of rectangle = 2(l+b)
so according to question  length of  rectangle is 3 feet less than twice the width of the rectangle
so
let the width of rectangle=x
then the length of rectangle= 2x-3

2[(2x-3)+x]=414 
4x-6+2x=414
6x=414+6
x=420/6 

x=70 

then,

length of rectangle= 2x-3=140-3=137 feets. 

Widt of rectangle= 70 feets.