Dr. A: The new influenza vaccine is useless at best and : GMAT Critical Reasoning (CR) - Page 2
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 21 Jan 2017, 13:08

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

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

Author Message
TAGS:

### Hide Tags

Manager
Joined: 06 Jan 2010
Posts: 73
Followers: 2

Kudos [?]: 13 [0], given: 15

Re: Tough CR. PLz look into this one? [#permalink]

### Show Tags

11 Jan 2010, 09:45
i vote B
Intern
Joined: 22 Dec 2009
Posts: 28
Followers: 0

Kudos [?]: 15 [0], given: 6

Re: Tough CR. PLz look into this one? [#permalink]

### Show Tags

20 Jan 2010, 10:04
papillon86 wrote:
14. Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.
In which of the following is the reasoning most similar to that of Dr. A?
(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.

the question stem follows a circular reasoning.

simplify the question stem as follows:
*X is useless
*journal says X is effective
*journal is wrong because X is ineffective(or useless).

(the only reason that Dr. A mentions to support his claim is that "The new influenza vaccine is useless.")

now if we see the answers it is clear that only C follows circular reasoning.

(the only reason Wingzz tennis balls perform better is because they are best.)

B does not follow a circular reasoning, its reasoning is logical,

X recommends Y.
i don't trust Y.

(there is a proper reason to not buy Y)

IMO: C
_________________

Deserve before you Desire

Manager
Joined: 09 Jan 2010
Posts: 128
Followers: 1

Kudos [?]: 27 [0], given: 12

Re: Tough CR. PLz look into this one? [#permalink]

### Show Tags

22 Jan 2010, 11:11
MY TAKE B
Re: Tough CR. PLz look into this one?   [#permalink] 22 Jan 2010, 11:11

Go to page   Previous    1   2   [ 23 posts ]

Similar topics Replies Last post
Similar
Topics:
Dr. A: The new influenza vaccine is useless at best and 3 15 Jun 2007, 10:31
Dr. A: The new influenza vaccine is useless at best and 5 03 Jun 2007, 00:19
Dr. A: The new influenza vaccine is useless at best and 5 02 May 2007, 18:46
Dr. A: The new influenza vaccine is useless at best and 1 15 Mar 2007, 15:48
Dr. A: The new influenza vaccine is useless at best and 4 03 Feb 2007, 07:37
Display posts from previous: Sort by