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CR Question

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tim
 Post subject: Re: CR Question
 Post Posted: Fri Aug 05, 2011 10:31 pm 
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ManhattanGMAT Staff


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Location: Southwest Airlines, seat 21C
If I’m understanding your reasoning correctly, you are suggesting that A should be the answer because you think A strengthens the argument. I won’t repeat what I wrote to the previous poster, but your fatal flaw is that you are confusing an assumptions question with a strengthen question. If I have misinterpreted your line of reasoning, you are going to have to be more clear about what you are trying to say..

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Tim Sanders
Manhattan GMAT Instructor
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ssajjan03
 Post subject: Re: CR Question
 Post Posted: Sun Aug 07, 2011 9:19 am 
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Students


Posts: 3
I think I found the error in my reasoning..
assumption means: fill the gap between evidence and conclusion

when evidence says that the usage of pigment was stopped, it is immaterial as to why the usage was stopped. hence not A

If it were strengthen question, option A would have strengthened the premise " why abandoned pigment can not be used"
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tim
 Post subject: Re: CR Question
 Post Posted: Fri Aug 12, 2011 10:33 pm 
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ManhattanGMAT Staff


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Location: Southwest Airlines, seat 21C
yeah, you definitely want to pay close attention to the difference between strengthen questions and assumption questions; as you've seen, sometimes that makes all the difference..

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Tim Sanders
Manhattan GMAT Instructor
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otavioveras
 Post subject: Re: CR Question
 Post Posted: Sun Dec 18, 2011 4:08 pm 
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Students


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Ok, Tim. So I'll revert the question:

Why would I assume that "Michelangelo did not work on the painting over the course of several years" if the argument leaves open the possibility that he could have started the painting in 1508 and finished it in the same year?
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tim
 Post subject: Re: CR Question
 Post Posted: Sun Jan 15, 2012 2:54 pm 
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ManhattanGMAT Staff


Posts: 2206
Location: Southwest Airlines, seat 21C
Exactly. If we assume that he completed the work all in a single year, then 1508 is definitely one of the years this could have happened, which is entirely consistent with the argument. Assuming he did everything in a single year restricts the dates in such a way that the conclusion is sound. If on the other hand we allowed him to to work for several years, he could have started before 1507 and/or ended after 1509. This is why we need the assumption in order to be sure of the conclusion..

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Tim Sanders
Manhattan GMAT Instructor
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