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# Dr. A: The new influenza vaccine is useless at best and

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Director
Joined: 25 Oct 2008
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Location: Kolkata,India
Re: The new influenza vaccine  [#permalink]

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29 Oct 2009, 17:00

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Senior Manager
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Re: The new influenza vaccine  [#permalink]

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31 Oct 2009, 03:20
I've seen this before and remember the answer as C.
reason was that both Dr's analysis and the analysis in C has messed-up cause-affect
Manager
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Re: The new influenza vaccine  [#permalink]

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31 Oct 2009, 14:42
C-the premise is what we seek to establish
Manager
Joined: 11 Jul 2009
Posts: 50
Re: The new influenza vaccine  [#permalink]

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02 Nov 2009, 10:33
The OA is C. C is the only answer with no backing and is only based on an opinion.
Manager
Joined: 08 Sep 2010
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Location: India
WE 1: 6 Year, Telecom(GSM)

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13 Oct 2010, 11:24
I also got it wrong.Good one.
Intern
Joined: 18 Aug 2010
Posts: 21
Concentration: Entrepreneurship, Finance
GPA: 3.6
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13 Oct 2010, 13:32
Good Q. I never considered circular reasoning.
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13 Oct 2010, 14:07
Difficult to spot, but I like circular reasoning questions.
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Intern
Joined: 13 Oct 2010
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13 Oct 2010, 22:09
I have no clue..I would guess with B probably..Can someone explain?
Manager
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14 Oct 2010, 00:50
1
this is circular reasoning, i.e., someone is stating something is effective because he thinks it's effective. That someone didn't mention why it's good or effective, and his only reasoning for it is because he thinks it's good. In this questions we need to look for reasoning similar to that. In C there is no mentioning why he thinks the balls are good; he just thinks they are effective.
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Manager
Joined: 22 Jun 2010
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14 Oct 2010, 01:01
I picked B, but came to know B is wrong.
Manager
Joined: 29 Sep 2008
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14 Oct 2010, 05:47
can someone give any other example of circular reasoning
Senior Manager
Joined: 05 Jul 2010
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23 Oct 2010, 08:01
Thanks. Very good one. I got it wrong too.

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Senior Manager
Joined: 29 Oct 2008
Posts: 397
Location: United States
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Re: The new influenza vaccine  [#permalink]

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20 May 2011, 17:08
1
raven678 wrote:
The OA is C. C is the only answer with no backing and is only based on an opinion.

A good explanation is available at this link with proper reasoning.
http://www.beatthegmat.com/dr-a-dr-b-tr ... html#48255

HTH
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Intern
Joined: 06 Aug 2011
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14 Oct 2011, 05:20
Do we get Circular reasoning questions..?? 'vent encountered any in gmat prep s/w.
Senior Manager
Joined: 01 Nov 2010
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GMAT Date: 08-27-2012
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15 Oct 2011, 04:18
i don't know what circular reasoning is..i choose C on basis that..
there is no clear reasoning of Dr A statement. and similar case happens with Tennis ball.
so, its C.
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Director
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15 Oct 2011, 15:11
monikaagr wrote:
Do we get Circular reasoning questions..?? 'vent encountered any in gmat prep s/w.

Thinking along the same line: do we get circular reasoning questions in the actual exam recent times? Even, I doubt whether there is any on the GmatPrep.
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Re: Dr. A: The new influenza vaccine is useless at best and  [#permalink]

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10 Jan 2012, 23:35
I chose B but now understand why it is C.
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Re: Dr. A: The new influenza vaccine is useless at best and  [#permalink]

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10 Jan 2012, 23:43
i think i got it right for right reason (very rare!!). C. personal opinion is used w/o any evidence.
Intern
Joined: 04 Oct 2012
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Re: Dr. A: The new influenza vaccine is useless at best and  [#permalink]

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16 Oct 2012, 06:59
interesting question - thanks for the feedback - i will be looking into circular reasoning more tonight when i study!
Intern
Joined: 29 Sep 2013
Posts: 2
Schools: NUS '15
Re: Dr. A: The new influenza vaccine is useless at best and  [#permalink]

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15 Oct 2013, 07:10
Ans c.
Cause there is no reason given for the conclusion drawn which is similar to Dr a's line of reasoning.

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Re: Dr. A: The new influenza vaccine is useless at best and &nbs [#permalink] 15 Oct 2013, 07:10

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