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OG114

by nafiul9090 » Sat Apr 23, 2011 6:13 pm
Guidebook writer: I have visited hotels throughout the
country and have noticed that in those built before
1930 the quality of the original carpentry work is
generally superior to that in hotels built afterward.
Clearly carpenters working on hotels before 1930
typically worked with more skill, care, and effort than
carpenters who have worked on hotels built
subsequently.
Which of the following, if true, most seriously weakens
the guidebook writer's argument?
(A) The quality of original carpentry in hotels is
generally far superior to the quality of original
carpentry in other structures, such as houses
and stores.
(B) Hotels built since 1930 can generally
accommodate more guests than those built
before 1930.
(C) The materials available to carpenters working
before 1930 were not signifi cantly different in
quality from the materials available to
carpenters working after 1930.
(D) The better the quality of original carpentry in a
building, the less likely that building is to fall into
disuse and be demolished.
(E) The average length of apprenticeship for
carpenters has declined signifi cantly since 1930.

i jst dont understand the reasoning here....wht m i missing???

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by nafiul9090 » Sun Apr 24, 2011 12:38 am
@jaymw for sharing the link. i just got it right because other options are substantially wrong but i dont know why option D is right.......

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by GMATGuruNY » Sun Apr 24, 2011 3:09 am
nafiul9090 wrote:Guidebook writer: I have visited hotels throughout the
country and have noticed that in those built before
1930 the quality of the original carpentry work is
generally superior to that in hotels built afterward.
Clearly carpenters working on hotels before 1930
typically worked with more skill, care, and effort than
carpenters who have worked on hotels built
subsequently.
Which of the following, if true, most seriously weakens
the guidebook writer's argument?
(A) The quality of original carpentry in hotels is
generally far superior to the quality of original
carpentry in other structures, such as houses
and stores.
(B) Hotels built since 1930 can generally
accommodate more guests than those built
before 1930.
(C) The materials available to carpenters working
before 1930 were not signifi cantly different in
quality from the materials available to
carpenters working after 1930.
(D) The better the quality of original carpentry in a
building, the less likely that building is to fall into
disuse and be demolished.
(E) The average length of apprenticeship for
carpenters has declined signifi cantly since 1930.

i jst dont understand the reasoning here....wht m i missing???
Learn to recognize the common flaws.
This argument exhibits a change in scope.
The premise is about a very limited sampling: the hotels that the guidebook writer has visited.
The conclusion is about the whole: all hotels built before 1930.

When an argument exhibits a change in scope, look for an answer choice that shows that sample ≠ whole.

Answer choice D indicates that only the well-constructed hotels are still in existence, implying that the hotels that were poorly constructed have been demolished. The guidebook writer could not have visited the hotels that have been demolished. Thus, the sampling (the hotels that the writer has visited) ≠ the whole (all hotels built before 1930).

The correct answer is D.
Last edited by GMATGuruNY on Sun Apr 24, 2011 7:38 am, edited 1 time in total.
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by nafiul9090 » Sun Apr 24, 2011 7:31 am
@mitch now tht makes sense to me......

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Re: OG114

by oliver12 » Fri Apr 02, 2021 7:55 am
Nice post..