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Integers

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nkhalaieff
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Integers

by nkhalaieff Mon Feb 14, 2011 11:24 pm

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!
nkhalaieff
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Re: Integers

by nkhalaieff Tue Feb 15, 2011 1:59 am

Just figured this out, statement was not clear at first.
jnelson0612
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Re: Integers

by jnelson0612 Thu Feb 17, 2011 6:15 pm

Good to hear; thanks for the update.
Jamie Nelson
ManhattanGMAT Instructor
shantascherla
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Re: Integers

by shantascherla Fri Feb 25, 2011 10:36 pm

Jamie - i am still stuck
Would you mind clarifying
RonPurewal
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Re: Integers

by RonPurewal Sat Feb 26, 2011 4:51 am

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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