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Math SET-1, Q18(value of Integer K)

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by iikarthik » Mon Jul 19, 2010 10:09 am
Q18:
What is the value of the integer k?
(1) k + 3 > 0
(2) k^4 <= 0

Hi,

Would be of great assistance if someone can solve and explain this problem for me.

Apologies,

Have edited the post .... k^4 <= 0
The OA is B
Thanks
karthik
Last edited by iikarthik on Mon Jul 19, 2010 11:46 am, edited 1 time in total.
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Source: — Data Sufficiency |
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by kvcpk » Mon Jul 19, 2010 10:49 am
What is the value of the integer k?
(1) k + 3 > 0

k>-3

Now let us say k=0
Is 0>-3 . It is.
What is the answer for the problem now? 0 [because, we want value of k].

Now let us say k=1
Is 1>-3? Yes.

What is the answer in this case? K=1.

If we get 2 different results for the given question, then the statement provided is INSUFFICIENT.
Hence INSUFF

(2) k^4 < 0

k^4<0

Given k is an integer. I believe k^4 can never be less than 0.

I would suggest you to check your source.
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by aloneontheedge » Mon Jul 19, 2010 10:52 am
iikarthik wrote:Q18:
What is the value of the integer k?
(1) k + 3 > 0
(2) k^4 < 0

Hi,

Would be of great assistance if someone can solve and explain this problem for me.

The OA is B
Thanks
karthik
Please chk the source,as kvpck mentioned it cannot be < 0
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by adi_800 » Fri Jul 23, 2010 9:14 am
kvcpk wrote:What is the value of the integer k?
(1) k + 3 > 0

k>-3

Now let us say k=0
Is 0>-3 . It is.
What is the answer for the problem now? 0 [because, we want value of k].

Now let us say k=1
Is 1>-3? Yes.

What is the answer in this case? K=1.

If we get 2 different results for the given question, then the statement provided is INSUFFICIENT.
Hence INSUFF

(2) k^4 < 0

k^4<0

Given k is an integer. I believe k^4 can never be less than 0.

I would suggest you to check your source.
The second statement says that k^4<= 0. So k^4 does not have to be greater than zero.
it can simply be 0. So, K^4 = 0. So, when it is possible to have this. When k = 0.
So, the value of K is zero and the option B is the answer..
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by adi_800 » Fri Jul 23, 2010 9:16 am
It seems that original poster later corrected the problem...dats y kvcpk got wrong..
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by kvcpk » Fri Jul 23, 2010 2:25 pm
adi_800 wrote:It seems that original poster later corrected the problem...dats y kvcpk got wrong..
Thanks Adi..
Original post had wrong details. So stopped it in mid.
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by iikarthik » Sun Jul 25, 2010 7:39 am
Hi all,

Apologies,

It was my mistake..

& i had edited the post.

Thanks,
karthik
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