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A rectangular floor that measures

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boomgoesthegmat Senior | Next Rank: 100 Posts Default Avatar
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A rectangular floor that measures

Post Thu Apr 28, 2016 1:27 pm
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $ 12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?
A) $200
B) $240
C) $480
D) $960
E) $1920

B

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Matt@VeritasPrep GMAT Instructor
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Post Thu Apr 28, 2016 2:11 pm
8/2 = 4, so we need 4 squares for the width.

10/2 = 5, so we need 5 squares for the length.

That means we need 4 * 5 => 20 squares. They're each $12, so the cost is 20*$12 => $240.

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