Question

A room measures 15 ft by 18 ft. A scale drawing of the room measures 10 in by 12 in. A doorway into the room is 3 ft wide. How wide will it be on the drawing?

Answer 1

Given a room is 15 ft by 18 ft

A scale drawing of the room is 10 in by 12 in

So, the scale = 10 in : 15 ft

which mean each 1 in = 1.5 ft

So, if a doorway into the room is 3 ft wide

The wide on the drawing will be = 3/1.5 = 2 in