Problema Solution
The length of a queen-size mattress is 20 inches longer than the width, and the perimeter is 280 inches. Find the dimensions of the queen-size mattress.
Answer provided by our tutors
let the length be x
width be = x - 20
2 (x + x -20) = 280 (given)
=> 4x -80 = 280
=> x = 60 inches
then width = 40 inches