Question

Find the area of 4 walls of a room where length of each wall is 16 feet × 12 feet, leaving space for 2 windows and a door of the given dimensions.

• A. 700 square feet
• B. 702 square feet
• C. 600 square feet
• D. 650 square feet

Answer 1

The correct option is B 702 square feet

Area of a wall
= Length × Width
= $16\times 12$
= 192 square feet

Area of the 4 walls
= $192\times 4$
= 768 square feet

Area of a window
= Side × Side
= $5\times 5$
= 25 square feet

Area of the door
= $8\times 2$
= 16 square feet

Area of 2 windows and a door
= 25 + 25 + 16
= 66 square feet

Area of 4 walls leaving 2 windows and 1 door = 768 - 66 = 702 square feet