An architectural drawing lists the scale as 1/4" = 1'. if a bedroom measures 1.5" by 2.25" on the drawing, how large is the bedroom?

Given that the house representation is given by 1/44"=1', then the house who dimension is 1.5" by 2.25" has an actual length of:
(2.25)/(1/4)*1
=2.25*4
=9'
and actual width of:
(1.5)/(1/4)*1
=1.5*4
=6'
therefore the size of the room will be:
Area=length*width
=9*6
=36 square inches 

Ithink at 36 mins, because the smallest multiple of these numbers adding together is 36 so yeah..may be wrong but let me know