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uniform width surrounds the pool

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by sanju09 » Mon Oct 24, 2011 2:10 am
A rectangular swimming pool is 20 feet by 28 feet. A deck that has uniform width surrounds the pool. The total area of the pool and deck is 884 square feet. What is the width of the deck?
a. 2 feet
b. 2.5 feet
c. 3 feet
d. 4 feet
e. 5 feet


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Source: — Problem Solving |

by vaibhavgupta » Mon Oct 24, 2011 3:21 am
sanju09 wrote:A rectangular swimming pool is 20 feet by 28 feet. A deck that has uniform width surrounds the pool. The total area of the pool and deck is 884 square feet. What is the width of the deck?
a. 2 feet
b. 2.5 feet
c. 3 feet
d. 4 feet
e. 5 feet


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Since the combined area = 884
area= (20+2x)(28+2x)
26*34=884

IMO

C
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by neelgandham » Mon Oct 24, 2011 3:44 am
From the diagram

Area of the pool + path = (20+2x)*(28*2x) = 884 => [spoiler]x=3, Option C[/spoiler]
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by mankey » Mon Oct 24, 2011 6:29 am
C. What is the OA?
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