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Finding of a survey of Systems magazine subscribers: Thirty

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Manager
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Finding of a survey of Systems magazine subscribers: Thirty [#permalink] New post 26 Oct 2011, 14:55
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A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

66% (02:27) correct 33% (02:05) wrong based on 128 sessions
Finding of a survey of Systems magazine subscribers: Thirty percent of all merchandise orders placed by subscribers in response to advertisements in the magazine last year were placed by subscribers under age thirty-five.
Finding of a survey of advertisers in Systems magazine: Most of the merchandise orders placed in response to advertisements in Systems last year were placed by people under age thirty-five.
For both of the findings to be accurate, which of the following must be true?

(A) More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five.
(B) Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.
(C) Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five.
(D) Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over.
(E) Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine.
[Reveal] Spoiler: OA
Manager
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Re: survey of system magazine [#permalink] New post 26 Oct 2011, 17:09
Can anyone explain it? I kind of get lost when reading the question. Complex...
why E is right? I chose C instead.
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Intern
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Re: survey of system magazine [#permalink] New post 27 Oct 2011, 10:15
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miaojunmaggie wrote:
Can anyone explain it? I kind of get lost when reading the question. Complex...
why E is right? I chose C instead.


Let's assume
1. A total of 100 merchandise orders were placed last year by the subscribers in response to the advertisement.
2. A total of 200 merchandise orders were received by Systems in response to the advertisement (place by non-subscribers, or in the survey's terminology - people)

Therefore, total non-subscriber (people) orders = 100

It follows from #1 that
Subscribers under 35 years old = 30 orders
Subscribers equal-to/more than 35 years old = 70 orders

Since, From stimulus: Most of the merchandise orders
placed in response to advertisements in Systems last year were placed by people under age thirty-five
,

Subscribers + Non-subscribers (people) less than 35 years old = 101 and above

Hence, the OA is "E"
Manager
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Re: survey of system magazine [#permalink] New post 27 Oct 2011, 12:24
Haha, I understand why C is wrong now. It says most of the merchandise orders are placed by people over 35, and it contradicts with the stimulus which says most of the orders placed are by people under 35.

It demonstrates how important reading comprehension is in critical reasoning. :)
Senior Manager
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Joined: 24 Jun 2011
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Location: United States (FL)
Concentration: Finance, Real Estate
GPA: 3.65
WE: Project Management (Real Estate)
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Kudos [?]: 43 [0], given: 56

GMAT Tests User
Re: survey of system magazine [#permalink] New post 27 Oct 2011, 14:27
I picked E...by POE it's very hard to understand the argument....I like gummybear explanation

Premise 1: Subscribers...... 35 years old or younger...... accounted for 30% of the orders
Premise 2: 35 years old or younger..... accounted for most of the orders
Therefore many orders were placed by non subscribers.
Senior Manager
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GMAT Tests User
Re: survey of system magazine [#permalink] New post 03 Nov 2011, 00:51
it is hard to understand argument. I do not see the similar questions in OG and gmatprep or from other sources. Anyone see the similar questions.
Manager
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Re: survey of system magazine [#permalink] New post 03 Nov 2011, 01:13
Tough one!!
I found it a bit confusing.Chose B first but now understand why it is E after reading gummybear's explanation.

E is correct.
Intern
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Schools: Booth '16, ISB '15
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Re: Finding of a survey of Systems magazine subscribers: Thirty [#permalink] New post 13 Oct 2012, 05:17
What would be the difficulty level of this one
Re: Finding of a survey of Systems magazine subscribers: Thirty   [#permalink] 13 Oct 2012, 05:17
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