Question

A rectangular room is 2 times as long as it is wide, and its perimeter is 48 meters. Find the dimension of the room.

Answer 1

=16cm

Explanation:

Let's read the problem carefully:

it says that one side of the rectangular room (let's call it b) is twice as long as the other (let's call it a), which in mathematical terms would be b = 2*a

It also says that the perimeter of the room is 48 meters, which means that (a + b)*2 = 48 => a + 2*a = 48/2 =>

3*a = 24 => a = 8, b = 16