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# When people experience throbbing in their teeth or gums,

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Director
Joined: 20 Apr 2005
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When people experience throbbing in their teeth or gums, [#permalink]

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20 Jun 2005, 11:31
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Difficulty:

(N/A)

Question Stats:

20% (02:32) correct 80% (03:53) wrong based on 5 sessions

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23. When people experience throbbing in their teeth or gums, they have serious dental problems, and if a dental problem is serious, it will be a problem either of tooth decay or of gum disease. Therefore, since throbbing in the teeth or gums is a sign of serious dental problems, and neither Sabinaâ€™s teeth nor her gums are throbbing, Sabina can be suffering from neither tooth decay nor gum disease.

Which one of the following contains an error of reasoning most similar to that made in the argument above?

(A) People who drink a lot of coffee are said to have jittery nerves. Therefore, medical students who drink a lot of coffee should not become neonatologists or surgeons since neither neonatology nor surgery should be practiced by people with jittery nerves.
(B) A legally practicing psychiatrist must have both a medical degree and psychiatric training. Thus, since Emmett has not undergone psychiatric training, if he is practicing as a psychiatrist, he is not doing so legally.
(C) Someone with severe nasal congestion has a sinus infection or else is suffering from an allergy. Therefore, if Barton does not have a sinus infection, Barton probably does not have severe nasal congestion.
(D) If a person is interested in either physics or chemistry, then that person would be wise to consider a career in medicine. Yolanda, however, is interested in neither physics nor chemistry, so it would not be wise for her to consider a career in medicine.
(E) Someone who is neither an ophthalmologist nor an optometrist lacks specialized training for diagnosing defects of the eye. Therefore, Kim must have been trained in ophthalmology or optometry, given that she accurately diagnosed Johnâ€™s eye defect
VP
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20 Jun 2005, 13:00
arg is if x then b or c and if not x then not b or c. D) is the same.
_________________

If your mind can conceive it and your heart can believe it, have faith that you can achieve it.

Senior Manager
Joined: 07 Nov 2009
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Re: CR: error of reasoning [#permalink]

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10 Aug 2010, 06:55
How would you negate E in this one?
Manager
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Re: CR: error of reasoning [#permalink]

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10 Aug 2010, 11:32
D for me as well.
Manager
Joined: 11 May 2010
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Re: CR: error of reasoning [#permalink]

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10 Aug 2010, 21:18
I pick D.

Want to know the OA so bad.
Senior Manager
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Re: CR: error of reasoning [#permalink]

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11 Aug 2010, 08:59
I go for D as well!
Manager
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Re: CR: error of reasoning [#permalink]

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11 Aug 2010, 09:23
D is my choice...but this kind of queastions take around 3 to 4 min....how to reduce
SVP
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Re: CR: error of reasoning [#permalink]

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11 Aug 2010, 11:48
The argument is in the form

X --> Y

not X --> not Y

D satisfies this.

I agree it takes easy 3 to 4 mins....makes me nervous and dont know how to reduce...
Manager
Joined: 11 May 2010
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Kudos [?]: 128 [0], given: 11

Re: CR: error of reasoning [#permalink]

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11 Aug 2010, 19:50
This is an LSAT question and a very tough one, I think 3 min and get is correct is ok. Just have to compensate on SC.
Senior Manager
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Re: CR: error of reasoning [#permalink]

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12 Aug 2010, 07:23
d
Senior Manager
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Re: CR: error of reasoning [#permalink]

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12 Aug 2010, 07:26
smoehow I find LSAT very weird ..
Re: CR: error of reasoning   [#permalink] 12 Aug 2010, 07:26
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