Answer:
For every 1 inch on the drawing, it's 3 feet in real life.
Explanation:
First, consider the length. The length is 6 inches on the drawing, while in actuality it is 18 feet. So every 6 inches represents 18 feet. Let's make a ratio; 6 : 18. To simplify it, divide both sides by 6; 6 : 18 = 1 : 3.
For every 1 inch on the drawing, it's 3 feet in real life.