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3ed, Q17, p. 38, NP Guide #1

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NP
 Post subject: 3ed, Q17, p. 38, NP Guide #1
 Post Posted: Thu Nov 27, 2008 2:14 pm 
The answer says that a, b and c must be > 1. However, nowhere in the text is it stated that the three integers must be prime or > 1. So is there an omission in the problem?
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Caveman
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 Post Posted: Sat Nov 29, 2008 7:56 am 
Can you post the problem, please?
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NP
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 Post Posted: Mon Dec 01, 2008 2:29 pm 
Hi,

Here's the problem:

a, b and c are positive integers. If a < b < c and abc = 286, what is c - b?
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NP
 Post subject:
 Post Posted: Tue Dec 02, 2008 12:10 pm 
I just noticed that the same question has already been answered here - http://www.manhattangmat.com/forums/num ... t5303.html
Sorry for the duplicate thread.
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JonathanSchneider
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 Post Posted: Sun Dec 07, 2008 11:53 am 
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ManhattanGMAT Staff


Posts: 380
First of all, nice work on catching our mistake. We'll be sure to update that for the next edition.
Second of all, nice work on finding the previous thread. FYI to everyone who reads this: this is the benefit of typing out the question source in the subject line: it makes it easy for others to search for previous posts.
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