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

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Joined: 18 Apr 2015
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The total number of GPSs in stock last month in Stores R and [#permalink]  05 Mar 2017, 09:19
Expert's post
00:00

Question Stats:

100% (00:44) correct 0% (00:00) wrong based on 11 sessions

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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Joined: 07 Jun 2014
Posts: 4702
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
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Kudos [?]: 1596 [0], given: 373

Re: The total number of GPSs in stock last month in Stores R and [#permalink]  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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Sandy
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