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Is x < y? (1) z < y (2) z < x

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Is x < y? (1) z < y (2) z < x [#permalink] New post 30 Jan 2012, 17:24
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Is x < y?

(1) z < y
(2) z < x
[Reveal] Spoiler: OA

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Re: Is x < y? [#permalink] New post 30 Jan 2012, 17:30
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DesecratoR wrote:
Is x < y?
(1) z < y
(2) z < x

Well, I don't agree with answer given, and I 'm little bit frustrated because I think this is an easy question. Need your opinion and help if I 'm wrong. Thank you!

My reasoning:

Stmt 1:
z<y, ok. Doesn't provide information about relation between x and y. If z>x then x<z<y. But if z<x, we don't know anything about relation between x and y. So, not sufficient.

Stmt 2:
z<x, ok. z could be also less than y, hence no information about relation between x and y. Not sufficient.

Taken together, still not sufficient.

Answer: E


You are right for (1)+(2) we just have that x and y are more than some number z, we clearly cannot say whether x<y. So, the answer is E.

Notice that if (2) were x<z then the answer would be C, as for (1)+(2) we would have x<z<y --> x<y.

Hope it helps.
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Re: Is x < y? [#permalink] New post 30 Jan 2012, 17:34
Bunuel wrote:
DesecratoR wrote:
Is x < y?
(1) z < y
(2) z < x

Well, I don't agree with answer given, and I 'm little bit frustrated because I think this is an easy question. Need your opinion and help if I 'm wrong. Thank you!

My reasoning:

Stmt 1:
z<y, ok. Doesn't provide information about relation between x and y. If z>x then x<z<y. But if z<x, we don't know anything about relation between x and y. So, not sufficient.

Stmt 2:
z<x, ok. z could be also less than y, hence no information about relation between x and y. Not sufficient.


Taken together, still not sufficient.

Answer: E


You are right for (1)+(2) we just have that x and y are more than some number z, we clearly cannot say whether x<y. So, the answer is E.

Notice that if (2) were x<z then the answer would be C, as for (1)+(2) we would have x<z<y --> x<y.

Hope it helps.


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Is x < y? [#permalink] New post 28 Apr 2012, 21:19
Is x < y?
(1) z < y
(2) z < x

I feel that the question or the OA is incorrect.... I choose E as the answer however the OA is something else
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Re: Is x < y? [#permalink] New post 28 Apr 2012, 23:52
i agree with you. Dont know how A can alone give the answer :shock:
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Re: Is x < y? [#permalink] New post 29 Apr 2012, 00:06
A is surely not the answer ... does not make any sense .

1.z<y does not say anything about x so insufff...
2.plotting number line

z--------x------y
z--------y------x
Both can be true so insufficient .

E
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Re: Is x < y? [#permalink] New post 29 Apr 2012, 03:09
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Re: Is x < y? (1) z < y (2) z < x [#permalink] New post 06 Jan 2013, 03:18
agreed ... E it is ..
Re: Is x < y? (1) z < y (2) z < x   [#permalink] 06 Jan 2013, 03:18
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