The wall is covered with wallpaper, leaving 2 feet from all the 4 sides. Find the area of the wall covered with wallpaper.

300 square feet

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308 square feet

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200 square feet

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250 square feet

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Solution

The correct option is B 308 square feet
Area of the entire wall
= Length × Width
= $26 \times 18$
= 468 square feet

Length of the wall covered with wallpaper = Length of wall - 4 feet
( $∵$ 2 feet is to be left out from both sides)
= 26 - 4 = 22 feet

Width of wall covered with wallpaper
= Width of the wall - 4 feet
( $∵$ 2 feet is to be left out from both the sides)
= 18 - 4 = 14 feet

Area of the wall covered with wallpaper = Length of the wall covered with wallpaper × Width of the wall covered with wallpaper
= $22 \times 14$ = 308 square feet

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