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Question
How many tiles each of 1 square foot are necessary to form a 1 foot border around the inside of a 24 feet by 14 feet room?
36
37
72
74
None of these
ANSWER : 3
Descrption
<p>Area of the total room = 24 x 14 = 336 sq ft</p> <p>Measurements of the room without the border will be (24 - 1x2) = 22 ft by (14 - 1x2) = 12 ft.</p> <p>Therefore, Area of the room without the border = 22 x 12 = 264 sq ft</p> <p>So, the area of the border = 336 - 264 = 72 sq ft.</p> <p>Then, the number of tiles required = 72/1 = <strong> 72.</strong></p>
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