Question

On a house blueprint, $2$ feet is represented by $1$ inch. If a room on the blueprint measures $5$ inches by $6$ inches, what is the area of the actual room?

• A. $30$ square feet
• B. $60$ square feet
• C. $90$ square feet
• D. $120$ square feet

Answer 1

The correct option is D $120$ square feet

If $1$ inch is $2$ feet, then $5$ inches is $10$ feet, while $6$ inches is $12$ feet.

Hence, the actual dimensions of the room is $10$ feet by $12$ feet.

Thus the area is $10\times 12=120$ sq feet.