Question 15048
let length of rectangle be L and width be W.
  area = L*W=13.5..........(1)
  perimeter = 2*(L+W)
  length of one side =L = 0.2 times perimeter=0.2*2*(L+W)
       L=0.4*L+0.4*W
       0.6*L=0.4*W
       1.5*L = W....substituting in (1)we get
      1.5*L*L=13.5
      L*L= 13.5/1.5 =9
        L=3
 hence  W = 13.5/3 = 4.5