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If a and b are integers and a is not equal to b, is ab >

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If a and b are integers and a is not equal to b, is ab > [#permalink]

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New post 25 Sep 2010, 04:19
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If a and b are integers and a is not equal to b, is ab > 0?

(1) a^b > 0

(2) a^b is a non-zero integer
[Reveal] Spoiler: OA

Last edited by Bunuel on 03 Jan 2014, 06:34, edited 1 time in total.
Edited the OA.

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Re: The Power of Absolutes - Manhattan Challenge Problem [#permalink]

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New post 25 Sep 2010, 04:35
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sachinrelan wrote:
If a and b are integers and a is not equal to b, is ab > 0?

(1) a^b > 0

(2) a^b is a non-zero integer

I got the answer E is the answer Correct as i dnt have the official answer to this question


Is \(ab>0\)? Question basically asks whether \(a\) and \(b\) are both positive or both negative.

(1) \(a^b>0\) --> both \(a\) and \(b\) could be positive as well as \(a\) could be positive and \(b\) negative. Not sufficient.

(2) a^b is a non-zero integer --> if \(a=1\) and \(b=-1\) answer would be NO but if \(a=1\) and \(b=2\) answer would be YES. Not sufficient.

(1)+(2) Example from (2) is still valid. Not sufficient.

Answer: E.
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Kudos [?]: 129130 [1], given: 12194

Intern
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Joined: 27 Jun 2010
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Kudos [?]: 166 [0], given: 7

Re: The Power of Absolutes - Manhattan Challenge Problem [#permalink]

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New post 25 Sep 2010, 04:48
Bunuel wrote:
sachinrelan wrote:
If a and b are integers and a is not equal to b, is ab > 0?

(1) a^b > 0

(2) a^b is a non-zero integer

I got the answer E is the answer Correct as i dnt have the official answer to this question


Is \(ab>0\)? Question basically asks are \(a\) and \(b\) both positive or both negative.

(1) \(a^b>0\) --> both \(a\) and \(b\) could be positive as well as \(a\) could be positive and \(b\) negative. Not sufficient.

(2) a^b is a non-zero integer --> if \(a=1\) and \(b=-1\) answer would be NO but if \(a=1\) and \(b=2\) answer would be YES. Not sufficient.

(1)+(2) Example from (2) is still valid. Not sufficient.

Answer: E.



Thanks for your explanation !! :)

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Re: If a and b are integers and a is not equal to b, is ab > [#permalink]

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New post 29 May 2017, 07:28
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Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Kudos [?]: 273 [0], given: 0

Re: If a and b are integers and a is not equal to b, is ab >   [#permalink] 29 May 2017, 07:28
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