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# What is the value of the integer k? (1) k + 3 > 0 (2) k^4

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Manager
Joined: 12 Oct 2008
Posts: 103
What is the value of the integer k? (1) k + 3 > 0 (2) k^4 [#permalink]

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28 Dec 2008, 15:53
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What is the value of the integer k?
(1) k + 3 > 0
(2) k^4 <= 0

I'm so sorry, 2nd stat should be < or =

--== Message from GMAT Club Team ==--

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Last edited by linau1982 on 28 Dec 2008, 16:06, edited 1 time in total.
VP
Joined: 05 Jul 2008
Posts: 1367

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28 Dec 2008, 16:04
linau1982 wrote:
What is the value of the integer k?
(1) k + 3 > 0
(2) k^4 >= 0

K is integer

K+3 > 0 k ={ -2, -1, ... infinity }, Insuff

K ^4 > =0 k = {-infinity to infinity } Positive power of 4 makes k ^4 positive >0 for any value of k. Insuff

Together, we have many values for k.

Hence E
SVP
Joined: 17 Jun 2008
Posts: 1502

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29 Dec 2008, 00:53
In the edited question, from stmt2: k^4 <=0. This is true only if k = 0 as otherwise, k^4 cannot be negative.

Hence, B should be the answer.
Intern
Joined: 30 Sep 2008
Posts: 31

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04 Jan 2009, 21:44
Zero is an integer
so i think it's B
Senior Manager
Joined: 23 May 2008
Posts: 393

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04 Jan 2009, 23:13
evevn i go for B
bcoz k^4 = 0 can only be true if k=0 and 0 is an integer

therfore B
Intern
Joined: 22 Nov 2006
Posts: 12

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10 Jan 2009, 11:42
k^4 cannot be negative. so k has to be zero

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: DS no properties   [#permalink] 10 Jan 2009, 11:42
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