Question

A wall is covered with wallpaper except for 2 feet on each of its four sides. Find the area of the wall covered with wallpaper.

• A. 384 sq ft
• B. 300 sq ft
• C. 250 sq ft
• D. 308 sq ft

Answer 1

The correct option is D 308 sq ft

Area of the wall = length × width
= 26 × 18
= 468 sq ft

Length of the wall covered with wallpaper = length of wall – 4 ft
(An area of width 2 ft is left uncovered on both sides)
= 26 - 4 = 22 ft

Width of the wall covered with wallpaper = width of the wall – 4 ft
(An area of width 2 ft is left uncovered on both sides)
= 18 - 4 = 14 ft

Area of the wall covered with wallpaper = length of the wall covered with wallpaper × width of the wall covered with wallpaper
= 22 × 14 = 308 sq ft