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Among the 9,000 people attending a football game at College

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Among the 9,000 people attending a football game at College [#permalink] New post 12 Dec 2015, 08:00
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Question Stats:

71% (00:39) correct 28% (00:47) wrong based on 313 sessions
Among the 9,000 people attending a football game at College C, there were x students from College C and y students who were not from College C

Quantity A
Quantity B
The number of people attending the game who were not students
9,000 − x − y


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.




Practice Questions
Question: 5
Page: 151
Difficulty: medium
[Reveal] Spoiler: OA

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Re: Among the 9,000 people attending a football game at College [#permalink] New post 12 Dec 2015, 08:08
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Re: Among the 9,000 people attending a football game at College [#permalink] New post 09 Jun 2018, 05:36
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Carcass wrote:
Among the 9,000 people attending a football game atCollege C, there were x students from College C and y students who were not from College C

Quantity A
Quantity B
The number of people
attending the game who
were not students
9,000 − x − y


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.




Practice Questions
Question: 5
Page: 151
Difficulty: medium


Another approach is to use the Double Matrix Method. This technique can be used for most questions featuring a population in which each member has two characteristics associated with it (aka overlapping sets questions).
Here, we have a population of people watching a football game, and the two characteristics are:
- from College C or not from College C
- student or non student

We can set up out diagram as follows:
Image


Since the two columns (student and non-student) must add to 9000, the SUM of the two boxes in the non-student column must = 9000 - (x + y)
= 9000 - x - y

So, we get:
Quantity A: 9000 - x - y
Quantity B: 9000 - x - y

Answer: C

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Re: Among the 9,000 people attending a football game at College [#permalink] New post 09 Jul 2018, 18:33
Carcass wrote:
Among the 9,000 people attending a football game atCollege C, there were x students from College C and y students who were not from College C

Quantity A
Quantity B
The number of people
attending the game who
were not students
9,000 − x − y


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.




Practice Questions
Question: 5
Page: 151
Difficulty: medium



Answer is c
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Re: Among the 9,000 people attending a football game at College [#permalink] New post 25 Oct 2018, 21:41
can B be the answer/
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Re: Among the 9,000 people attending a football game at College [#permalink] New post 17 Nov 2019, 14:55
In a question like this, would it be possible for the number of students not from college C to be 0? (Kind of as a trick question)
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Re: Among the 9,000 people attending a football game at College [#permalink] New post 19 Nov 2019, 07:19
Expert's post
Re: Among the 9,000 people attending a football game at College   [#permalink] 19 Nov 2019, 07:19
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Among the 9,000 people attending a football game at College

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