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The total number of GPSs in stock last month in Stores R and

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The total number of GPSs in stock last month in Stores R and [#permalink] New post 05 Mar 2017, 09:19
Expert's post
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A
B
C
D
E

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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions


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The total number of GPSs in stock last month in Stores R and T was what fraction of the total number of GPSs in stock last month in all three stores?

A) \frac{1}{2}

B) \frac{2}{3}

C) \frac{7}{9}

D) \frac{4}{5}

e) \frac{8}{9}
[Reveal] Spoiler: OA

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GRE 1: 323 Q167 V156
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Re: The total number of GPSs in stock last month in Stores R and [#permalink] New post 11 Mar 2017, 20:25
Expert's post
Explanation

Find the total number of GPS units in stock in Stores R and T:

R: 55
T: 25
R + T = 80

Find the total number of GPS units in all three stores:

R: 55
S: 40
T: 25
R + S + T = 120

Hence the fraction:

\frac{80}{120} = \frac{8}{12} = \frac{2}{3}.

Hence option B is correct.
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The total number of GPSs in stock last month in Stores R and

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