Question

7 The length of a rectangular hallway is 3 times its breadth. If the perimeter of the hallway is
48 m, find its length and breadth.​

Answer 1

P=2(l+b)
l= 3b
Therefore, 48= 2(3b+b)
48=2*4b
48/2=4b
24/4=b
6=b
l=3*b
l=3*6
l=18m