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At 7 o'clock how many people are on line to buy tickets at a theatre

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Joined: 21 Jun 2014
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Concentration: General Management, Technology
GMAT 1: 540 Q45 V20
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WE: Information Technology (Computer Software)
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At 7 o'clock how many people are on line to buy tickets at a theatre [#permalink]

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New post 01 Apr 2017, 21:42
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E

Difficulty:

  15% (low)

Question Stats:

90% (00:40) correct 10% (00:08) wrong based on 28 sessions

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At 7 o'clock how many people are on line to buy tickets at a theatre box office?

(1) People are getting on the line at the rate of 2 people per minute at 7 o'clock.

(2) People are buying tickets and leaving the line at the rate of 4 people every 2 minutes at 7 o'clock.
[Reveal] Spoiler: OA

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Re: At 7 o'clock how many people are on line to buy tickets at a theatre [#permalink]

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New post 03 Apr 2017, 11:21
We don't know how many people were already in line at 6:59pm. It could have been 0 or 1 billion people. We have the rates of people coming in and out at 7pm, but we don't know how many were already there as a baseline. Both statements give rates and no baseline. So the answer is E, both statements are insufficient.
Re: At 7 o'clock how many people are on line to buy tickets at a theatre   [#permalink] 03 Apr 2017, 11:21
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At 7 o'clock how many people are on line to buy tickets at a theatre

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