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QOTD #6 In a single line of people waiting to purchase

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QOTD #6 In a single line of people waiting to purchase [#permalink] New post 03 Aug 2016, 17:04
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Question Stats:

55% (01:08) correct 44% (01:25) wrong based on 18 sessions
In a single line of people waiting to purchase tickets for a movie, there are currently 10 people behind Shandra. If 3 of the people who are currently in line ahead of Shandra purchase tickets and leave the line, and no one else leaves the line, there will be 8 people ahead of Shandra in line. How many people are in the line currently?

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Question: 20
Page: 154


[Reveal] Spoiler: OA
22

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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post 03 Aug 2016, 17:06
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Explanation

You are given that if 3 people currently ahead of Shandra leave the line and no one else leaves, there will be 8 people ahead of Shandra. This means that currently there are 11 people ahead of Shandra. In addition to the 11 people currently ahead of Shandra in line, Shandra herself is in line, and there are currently 10 people behind Shandra. Therefore the total number of people in line currently is 11 + 1 +10, or 22. The correct answer is 22.
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post 24 Jan 2017, 03:04
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The main important point we have to notice in here is the word "if"
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post 13 May 2018, 11:45
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"If 3 of the people who are currently in line ahead of Shandra purchase tickets and leave the line" here, said that, leave the line, then my question is if 3 people gone then why I add 3 persons at the last? My answer is 19! But here the answer is 22 :( Can you explain, please?
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post 13 May 2018, 12:24
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malihanajia wrote:
"If 3 of the people who are currently in line ahead of Shandra purchase tickets and leave the line" here, said that, leave the line, then my question is if 3 people gone then why I add 3 persons at the last? My answer is 19! But here the answer is 22 :( Can you explain, please?


The issue here is the language. Since there is an 'if' in the question the final answer expected is the total number of people in the line originally. Which is 22.

However you are correct that there are 19 people in the line when three people leave the line (22-3=19).

Since the question is based around 'IF three people leave the line'.


Hope this helps.

PS: This is not the best wording for a GRE question
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post 17 May 2018, 21:42
So are they asking how many people remaining after those 3 people leave or before they leave?
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post 17 May 2018, 23:59
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kruttikaaggarwal wrote:
So are they asking how many people remaining after those 3 people leave or before they leave?


Before

The question says if 3 people leave, i.e. in reality they may or maynot leave
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Re: QOTD #6 In a single line of people waiting to purchase   [#permalink] 17 May 2018, 23:59
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