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Integers

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nkhalaieff
 Post subject: Integers
 Post Posted: Mon Feb 14, 2011 11:24 pm 
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Students


Posts: 3
A list consists of several integers. Is the product of all the integers positive?

1.The product of the greatest and smallest integers in the list is positive.

2.There is an even amount of integers.

The correct answer is C, and I cannot see how this works. Just because you have an even amount of integers and the first and last integer's product is positive, does not mean we know that the product is positive or negative. For example:

NPPPPN=positive
PNPPPP=negative

Please Help!
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nkhalaieff
 Post subject: Re: Integers
 Post Posted: Tue Feb 15, 2011 1:59 am 
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Students


Posts: 3
Just figured this out, statement was not clear at first.
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jnelson0612
 Post subject: Re: Integers
 Post Posted: Thu Feb 17, 2011 6:15 pm 
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ManhattanGMAT Staff


Posts: 1857
Good to hear; thanks for the update.

_________________
Jamie Nelson
ManhattanGMAT Instructor
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shantascherla
 Post subject: Re: Integers
 Post Posted: Fri Feb 25, 2011 10:36 pm 
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Course Students


Posts: 21
Jamie - i am still stuck
Would you mind clarifying
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RonPurewal
 Post subject: Re: Integers
 Post Posted: Sat Feb 26, 2011 4:51 am 
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ManhattanGMAT Staff


Posts: 7146
shantascherla wrote:
Jamie - i am still stuck
Would you mind clarifying


read here:
post16163.html

also, post there (NOT here) if you have any questions.
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