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# Reading skills among high school students in Gotham have

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Manager
Joined: 12 Jul 2003
Posts: 198

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24 May 2005, 22:44
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Reading skills among high school students in Gotham have been steadily declining, which can only be the result of overcrowding in schools.

Which of the following weakens the conclusion?
a)the high schools system in gotham succeeds in giving students a good education at considerably less cost than do most systems.
b)several cities have found that overcrowding in the schools is not always associated with lower reading scores
c)gotham schools have greater teacher student ratio than most other school systems
d)students reading skills have not declined in other cities where high schools are just as crowded as those of gotham
e)schools are not overcrowded in many cities where high school reading scores have declined more than they have in gotham.

Best.

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Manager
Joined: 27 Jan 2005
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Location: San Jose,USA- India

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24 May 2005, 22:58
D.

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SVP
Joined: 05 Apr 2005
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24 May 2005, 23:06
yup D it is.

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Director
Joined: 18 Apr 2005
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25 May 2005, 04:23
D.

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Manager
Joined: 12 Jul 2003
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25 May 2005, 06:33
Guys guess what ,the OA is E.

explanations anyone?

Best.

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Intern
Joined: 30 Mar 2005
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25 May 2005, 07:24
An explanation to OA (E) is - E strongly communicates that there is an another cause by saying that reading skill has declined in schools despite the schools are not crowded. D is not as strong as E in weakening the argument.

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Senior Manager
Joined: 13 Jan 2005
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25 May 2005, 07:34
I agree with Arikshanda. Its E

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Manager
Joined: 27 Jan 2005
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Location: San Jose,USA- India

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25 May 2005, 17:29
But still, D is right on the point.
In other cities where high schools are just as crowded as those of gotham,reading skills have not declined.

Any official explanation?

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Director
Joined: 18 Feb 2005
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25 May 2005, 20:41
Negate the premise then you would land up in choice E

X->Y when negated we get
Not Y ->Not X

Refer to HongHu's masterpiece

http://www.gmatclub.com/phpbb/viewtopic.php?t=14547

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Manager
Joined: 27 Jan 2005
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26 May 2005, 00:23
still confusing.
Tough to figure how to apply these rules...

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26 May 2005, 00:23
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