Question

A scale drawing of Jack's living room is shown below:

Answer 1

Drawing : Actual
Scale
            2 : 10
      2 cm : 10 feet

Length
     6 cm : 30 feet
Width
     4 cm : 20 feet

The actual dimensions of the room are - Length=30 feet, Width=20 feet.
The answer is the second one.

Answer 2

The width is:
$4 \times \frac{10}{2} = \frac{40}{2} = 20$
and the length is :
$6 \times \frac{10}{2} = \frac{60}{2} = 30$
the second one is true