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Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an

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ritula
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Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   Updated on: 31 May 2008, 20:49
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Find the value of x, if x is odd.

(1) x^x =y^2
(2) y is an integer

1. if statement (1) alone is sufficient but statement (2) alone is not
2. if statement (2) alone is sufficient but statement (1) alone is not
3. if both (1) and (2) together are sufficient but none of them alone is sufficient
4. if both independently are sufficient
5. if both statements (1) and (2) together are not sufficient



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Originally posted by ritula on 31 May 2008, 05:19.
Last edited by ritula on 31 May 2008, 20:49, edited 1 time in total.
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 06:17
ritula wrote:
Find the value of x, if x is odd.

(1) x^x =y^2
(2) y is an integer

1. if statement (1) alone is sufficient but statement (2) alone is not
2. if statement (2) alone is sufficient but statement (1) alone is not
3. if both (1) and (2) together are sufficient but none of them alone is sufficient
4. if both independently are sufficient
5. if both statements (1) and (2) together are not sufficient

Answer : ( 4 )

Hi Ritula
Are you sure the question is right?
If 4 is indeed the answer, then option 1 and 2 are independently sufficient to answer the question
If we use the statement 2,
It means "Find the value of x, if x is odd" and y is an integer
Something is amiss. could you clarify
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 06:57
Yeah i also have similar doubts.
zeenie wrote:
ritula wrote:
Find the value of x, if x is odd.

(1) x^x =y^2
(2) y is an integer

1. if statement (1) alone is sufficient but statement (2) alone is not
2. if statement (2) alone is sufficient but statement (1) alone is not
3. if both (1) and (2) together are sufficient but none of them alone is sufficient
4. if both independently are sufficient
5. if both statements (1) and (2) together are not sufficient

Answer : ( 4 )

Hi Ritula
Are you sure the question is right?
If 4 is indeed the answer, then option 1 and 2 are independently sufficient to answer the question
If we use the statement 2,
It means "Find the value of x, if x is odd" and y is an integer
Something is amiss. could you clarify
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 12:02
bkk145 wrote:
E from me.

Could you explain your answer please
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 12:15
zeenie wrote:
bkk145 wrote:
E from me.

Could you explain your answer please


Sure thing..

x=? when x=odd
(1) x^x =y^2
(2) y is an integer

For (1) to be true, x must be an odd number square.
For example,
if x=(3^2) = 9, then (3^2)^9 = (3^9)^2; in this case, y=3^9
Or if x=(5^2)=25, then (5^2)^25 = (5^25)^2; in this case, y=5^25
x can be 9 or 25 or any odd number square for that matter.
INSUFFICIENT

(2) Using the same case as above...
y=5^25 produces x=25
y=3^9 produces x=9
INSUFFICIENT

Together, more of the same.
INSUFFICIENT

Ans = E
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 12:34
bkk145 wrote:
zeenie wrote:
bkk145 wrote:
E from me.

Could you explain your answer please


Sure thing..

x=? when x=odd
(1) x^x =y^2
(2) y is an integer

For (1) to be true, x must be an odd number square.
For example,
if x=(3^2) = 9, then (3^2)^9 = (3^9)^2; in this case, y=3^9
Or if x=(5^2)=25, then (5^2)^25 = (5^25)^2; in this case, y=5^25
x can be 9 or 25 or any odd number square for that matter.
INSUFFICIENT

(2) Using the same case as above...
y=5^25 produces x=25
y=3^9 produces x=9
INSUFFICIENT

Together, more of the same.
INSUFFICIENT

Ans = E

I am still unsure.
The question stem says
x=? when x=odd
and option B says
y is an integer
How do you correlate the two and get an answer. (please dont look at option A,just option B :))

Cheers !
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 12:43
zeenie wrote:
I am still unsure.
The question stem says
x=? when x=odd
and option B says
y is an integer
How do you correlate the two and get an answer. (please dont look at option A,just option B :))

Cheers !


You are absolutely right, there is no relation between the two. I was caught up in the moment and mistakenly used the information from #1. I did that because I saw that what I had for (1) also satisfy (2).

But yes, (2) do not mention anything about x, so it must be insufficient. You are correct.
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 13:13
bkk145 wrote:
zeenie wrote:
I am still unsure.
The question stem says
x=? when x=odd
and option B says
y is an integer
How do you correlate the two and get an answer. (please dont look at option A,just option B :))

Cheers !


You are absolutely right, there is no relation between the two. I was caught up in the moment and mistakenly used the information from #1. I did that because I saw that what I had for (1) also satisfy (2).

But yes, (2) do not mention anything about x, so it must be insufficient. You are correct.


Yes, I almost made the same mistake . Then I read the question again.
I think there s a problem with the framing of this question
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 13:17
zeenie wrote:
Yes, I almost made the same mistake . Then I read the question again.
I think there s a problem with the framing of this question


I think it is common though when there is no relationship between the two. A good example is the other question we both did, and the question did not mention "n" at all.

In any case, the answer I have remains E, and do not agree with the OA.
:|
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 14:57
either a clear E or a DUD question with some missing info which could possibly make 4 the answer. But for all intensive purposes, E.
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   31 May 2008, 21:00
Guys, after going thru all the discussions, i have decided to edit the post and remove the answer as it seems dubious.
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   01 Jun 2008, 06:09
E for me as well .... x can be 1 or -1 ...
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink] New post   02 Jun 2008, 21:27
E. Answer can't be 4 because x is odd.



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This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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Re: Find the value of x, if x is odd. (1) x^x =y^2 (2) y is an [#permalink]
02 Jun 2008, 21:27
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