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

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Intern
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Is x < y? (1) z < y (2) z < x [#permalink]

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New post 30 Jan 2012, 17:24
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

95% (01:32) correct 5% (00:18) wrong based on 102 sessions

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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]

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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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Intern
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Joined: 23 Dec 2011
Posts: 9
GMAT 1: 620 Q47 V28
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Kudos [?]: 5 [0], given: 9

Re: Is x < y? [#permalink]

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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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Re: Is x < y? [#permalink]

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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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Is x < y? [#permalink]

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New post 26 May 2016, 02:02
Is x < y?

(1) z < y
(2) z < x
Expert Post
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Posts: 33491
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Re: Is x < y? (1) z < y (2) z < x [#permalink]

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New post 26 May 2016, 02:17
Expert's post
Re: Is x < y? (1) z < y (2) z < x   [#permalink] 26 May 2016, 02:17
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