Answer:
The actual size of the kitchen is 14 feet by 20 feet.
Explanation:
We are given scale factor of blueprints of a house as 1/4 in : 1 ft.
That is 1 inch = 1×4 feet = 4 feet.
The measure of kitchen 3.5 in by 5 in on the blueprints.
Therefore, actual length of the 3.5 inches kitchen on the blueprint = 3.5 × 4 = 14 feet.
And actual width of the 5 inches kitchen on the blueprint = 5 × 4 = 20 feet.
Therefore, the actual size of the kitchen is 14 feet by 20 feet.