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

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sandy
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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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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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sandy
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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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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] New post   25 Dec 2018, 05:09
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kruttikaaggarwal wrote:
So are they asking how many people remaining after those 3 people leave or before they leave?

Think Simply like this : There are 2000 learners in gre.myprepclub.com. If 3 people leave there will be 1997 people. what is the number of learners now?
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post   02 May 2020, 18:19
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sandy wrote:
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


You are correct. This is not the best wording for a GRE question. I picked up on that right away and sent an email to ETS about this, to which they agreed with me. It needs revision. Whew! Thank God I wasn't the only out there to berate ETS over this question!
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post   30 Jul 2021, 23:40
Total number of persons in a group/class = Rank of a person from top/left + Rank of the person from bottom/right - 1

Question says currently 10 people behind Shandra. So the rank of Shandra from left should be 11

and totally 11 people before her. So the rank of Shandra from the right should be 12.

As per the formula, 12+11-1 = 22 in the group
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post   15 Mar 2022, 04:02
since the question says that ''if 3 people leave the line'' the answer, I think is 19 not 22.
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Re: QOTD #6 In a single line of people waiting to purchase [#permalink] New post   15 Mar 2022, 04:11
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bahradin wrote:
since the question says that ''if 3 people leave the line'' the answer, I think is 19 not 22.


This is an official question sir

Quote:
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   15 Mar 2022, 12:12
Wording is little ambiguous, but question overall is very good.
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