In the scale used on a blueprint,1/4 inch represents 2 feet.On the blueprint,what is the length of a room with an actual length of 20 feet?

Answer: Option 'd' is correct.
Step-by-step explanation:
Since we have given that
In the scale used on a blueprint,
[tex]\dfrac{1}{4}\ inch=2\ feet[/tex]
Length of a room = 20 feet
We need to find the Length of room in a blue print.
We will use "Unitary method":
[tex]2\ feet=\dfrac{1}{4}\ inch[/tex]
[tex]1\ feet=\dfrac{1}{8}\ inch[/tex]
So, [tex]20\ feet=\dfrac{1}{8}\times 20=2.5\ inches[/tex]
Hence, Option 'd' is correct.