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Guidebook writer: I have visited hotels throughout the country and hav

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 11 Mar 2013, 15:13
hi Sauravdas,

D does definitely weaken, because it says that buildings built with high quality are more likely to remain in use.

SO

The buildings from pre 1930 are likely to only be a small section of all buildings that were ever built pre 1930 and only the good ones survive. So not all pre 1930 buildings would have had such high quality work.

Hope that helps.

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vaivish1723 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 significantly 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 significantly since 1930.


I dont know the answer, Kindly explain along with the right answer



A - comparison is not between hotels and houses
B- we are not talking about guests
C- irrelevant
D- correct
E- in a way strenthens the argument

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 21 Mar 2013, 08:28
Why E is not correct?

E says that length of apprenticeship has declined after 1930 and so we can infer that if every other thing remain same, then the care, skill and effort must be enhanced after 1930 for the same quality of hotel.

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 02 Apr 2013, 12:37
sauravdas wrote:
The only reason I can select D is because all other options are either irrelevant or strengthening the argument. So its only by elimination. I see no explanation valid enough for D to be an option.


Although it's true that by POE you can eliminate all other answers quite easily, IMO, D has very strong logic.

The stem:

Author visits hotels built BEFORE 1930 and AFTER 1930, and sees that carpentry is of higher quality in MORE hotels built before 1930 than built after.

Author CONCLUDES that masters who made carpets for hotels before 1930 were more skillful than those who made carpets for hotels after 1930.

Weaken the conclusion:

D. If carpentry is of WORSE quality in a hotel, then the odds that the hotel will be abandoned and, ultimately, demolished are HIGHER.

THEREFORE: The author cannot objectively CONCLUDE that masters who made carpets for hotels before 1930 were more skillful, BECAUSE he is most probably comparing the residual number of hotels built before 1930 (that were not demolished because they had good carpentry) with the hotels built after 1930, which include hotels that have bad carpentry, but weren't yet demolished because not enough time has elapsed for that to happen.


I hope the answer is exhaustively comprehensive and I'm sorry if my grammar is a bit odd (not english native). I've been reading this forum for a while and decided to register today:) GMAT in 1 week! Good luck everyone.

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 20 May 2013, 06:22
The writer assumes that 'All the carpentry done during 1930...or during a certain era...was good'....he writes with a 'those good old days...' sense.

Whatever 'Retro' he finds he assumes to be good and unique (perhaps.)

He lives no room for the facts that

1. There could be many buildings in the 1930's which used low quality material and wre eventually demolished.

2. Thr could be many buildings with good carpentry work in present era, which he might have never visited.

The 'samples' he took on which he assumes a certain conclusion are not sufficient.............D highlights the same.

It mentions that only those buildings with good carpentry survived......thus highlighting point 1.

Let me know it was helpful.

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 30 May 2013, 23:50
ANS D- I need to find a reason to weaken this conclusion. Maybe only slightly or indirectly.

Say there are 100 such pre-1930 old hotels. 90 of them have been demolished because the carpentry was bad

say there are 40 new hotels. Out of the 40 may be 35 hotels have a inferior quality carpentry.

So there are 10 old hotels.....> good carpentry
There are 35 new ones.........> Bad carpentry

Can I conclude that the old hotel is better than the new??
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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 01 Jun 2013, 11:40
reasons to eliminate A B C & E are convincing :-)

Though a tough que to choose "D" as correct choice

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 17 Sep 2013, 00:17
TehJay wrote:
vaivish1723 wrote:
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?

We want to weaken the argument that carpenters before 1930 were better than carpenters after 1930.

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. The writer isn't comparing hotels to other buildings - irrelevant.

B. Hotels built since 1930 can generally accommodate more guests than those built before 1930. Irrelevant

C. The materials available to carpenters working before 1930 were not significantly different in quality from the materials available to carpenters working after 1930. STRENGTHENS the argument - if both sets of carpenters have the same quality tools, then the pre-1930's carpenters were probably doing better work with those tools

D. The better the quality of original carpentry in a building, the less likely that building is to fall into disuse and be demolished. Makes sense - it's not that every single hotel built before 1930 was better than the ones built after, but instead that the VERY BEST hotels are still around, while the lesser ones have long since been demolished. The proportion of badly built hotels before 1930 could have been much higher than it is now, but all of the bad ones have been demolished and replaced with modern buildings, so the writer is only seeing the best of the best that were built.

E. The average length of apprenticeship for carpenters has declined significantly since 1930. Would strengthen the argument - carpenters train less now than they used to.


I dont know the answer, Kindly explain along with the right answer


Why it is now E ? why is E irrelevant .. its telling the bad quality work after 1930 is cause of length of apprenticeship .. not because carpenters lack in skill or cared less ..

consider it a cause and effect .. more care and skill >>>>> good furniture ... now I introduce something else, hence it should weaken it .. isnt it ?
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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 20 Dec 2013, 05:58
scthakur wrote:
To me, it looks like option B for the reason that if the hotel can accommodate more guests, chances are that more guests usually got accommodated and resulted into more use of carpentry work and faster deterioration of quality.


I also thought in the same way. B seems the correct one.

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New post 20 Apr 2014, 08:53
Why can't one infer the following from A: "Original carpentry in hotels is much better than the carpentry in other structures" -- Since there is crappy carpentry in other structures, it shows that the carpenters didn't always have more skill?

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New post 20 Apr 2014, 09:13
russ9 wrote:
Why can't one infer the following from A: "Original carpentry in hotels is much better than the carpentry in other structures" -- Since there is crappy carpentry in other structures, it shows that the carpenters didn't always have more skill?


Yes. One can infer as you mentioned, but doesn't differentiate difference of works between that before 1930 and after 1930. Your inference can be applied in both cases.

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.

Stmnt comparison is between Work before 1930 Vs work afer 1930. (work= Hotel)

Conclusion: Work before 1930 is done with more skill, care.

To weaken the conclusion means 'there is no difference in way carpentry work before 1930 and after 1930'

Statement (A) doesn't hit this conclusion. It compared different kinds of works before 1930. Comparison should be between apple to apple.

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New post 27 Apr 2014, 05:58
adishail wrote:
vaivish, malik, nishant - try using POE and you will narrow down to 1~2 choices.

Irrelevant 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.

Irrelevant. Some ppl might try to relate it - more guests - > more damage. If less damage means better work /quality (but this is stretching it too far in GMAT) B. Hotels built since 1930 can generally accommodate more guests than those built before 1930.

Strengthens coz is material is same, then workmanship has to be better. C. The materials available to carpenters working before 1930 were not significantly 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.

Irrelevant E. The average length of apprenticeship for carpenters has declined significantly since 1930.

Now go back to D. Building still there - > original carpentry is good quality - > it is not the workmanship, but the quality of material. Hence, weakens the claim of high quality of workmanship by the author.



I don't understand how E is the wrong choice. Since the original carpenter spent more time as apprentice then the later ones obviously the original carpentry was of better quality. Please explain

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 23 Aug 2014, 01:21
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.

Conclusion : carpenters before 1930 worked with more skill.
the passage is about work of carpenters in hotels before 1930 and about work of carpenters in hotels after.

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.-- We should compare hotels to hotels.

B. Hotels built since 1930 can generally accommodate more guests than those built before 1930.- OFS
C. The materials available to carpenters working before 1930 were not significantly different in quality from the materials available to carpenters working after 1930.
- OFS
D. The better the quality of original carpentry in a building, the less likely that building is to fall into disuse and be demolished. - Correct. As the sample is not representative. The author is visiting only hotels of good quality.
E. The average length of apprenticeship for carpenters has declined significantly since 1930. OFS

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New post 24 Sep 2014, 09:01
I got confused with B. After reading explanation i understand that why D is right.
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New post 03 Oct 2014, 21:28
D should be it, if you read other options none of them weakens the conclusion, only D is left.
Not 100 % sounds corrects but the best in lot.
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New post 25 Jan 2015, 18:39
(D) This is a self selection bias situation. The hotels which had superior carpentry are the ones that survived. Its not the carpenters that were better than the ones from later period, the buildings with better carpentry stayed and the rest were demolished leading to a larger portion of 1930 or older buildings with good carpentry.

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Option D does not impact the two groups of hotels in the same way: this preservational bias will be stronger the older the hotel. Shoddy buildings that are new are more likely to be standing than are those that are old, as the former will be demolished once they get older.

As for B, how does this difference influence the quality of the original carpentry work.

The lesson to be learned from this question: be wary of studies and surveys; ensure that the sample is representative of the population in question.

Imagine that there were a study of men grouped according to their ages, (A) over 90 , (B) close to 65, (C) close to 30. If it were found that, on average, the blood of the A men contained more a certain protein than did the blood of the B men, who in turn contained more of this protein than did the blood of the C men, would it be safe to conclude that the amount of this protein in a man's blood tends to increase as the man ages ?
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New post 05 Feb 2015, 21:45
I choose D as it clearly states that irrespective of whether the hotel was built before or after 1930. If the carpentry is good there are high chances that building will be in use. Hence, hotel staff will be taking care of its belongings.

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New post 17 Mar 2015, 03:11
Choice D

Type weaken

Conclusion: skill, care and effort of carpenter => superior quality of building prior 1930
Assumption: skill, care and effort are the only cause of the conclusion

Beak the assumption: there are other reason lead to superior quality of building prior 1930 (namedly: all the the building wih inferior carpentry has been demoslished for other uses). Hence choice D is correct

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Re: Guidebook writer: I have visited hotels throughout the country and hav [#permalink]

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New post 04 Apr 2015, 06:44
I don't understand how D works, even though I originally chose it.

I understand that it explains why a lot of hotels built before 1930 of are a high quality, but this also applies to hotels built after 1930's, meaning only buildings with high quality carpentry would be standing, regardless of when they were built.

So to me.... if D were correct, then all the hotels built after 1930 that were less superior to those built before 1930 would have been demolished by electing D, and thus, all hotels would have equal quality carpentry, which goes against the whole premise and advice given in the prompt. Choosing D, to me, seems contradictory to the prompt.

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Re: Guidebook writer: I have visited hotels throughout the country and hav   [#permalink] 04 Apr 2015, 06:44

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