Question

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 1

You would have to multiply 2 feet by 10 to get 20 feet, so multiply 1/4 by 10 to get 5/2 inches. The length of a 20 ft. room on a blueprint would be 5/2 or 2.5 inches.

Answer 2

Answer: Option 'd' is correct.

Step-by-step explanation:

Since we have given that

In the scale used on a blueprint,

$\dfrac{1}{4}\ inch=2\ feet$

Length of a room = 20 feet

We need to find the  Length of room in a blue print.

We will use "Unitary method":

$2\ feet=\dfrac{1}{4}\ inch$

$1\ feet=\dfrac{1}{8}\ inch$

So,  $20\ feet=\dfrac{1}{8}\times 20=2.5\ inches$

Hence, Option 'd' is correct.