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# Is x < y?

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Manager
Joined: 04 Feb 2011
Posts: 63
Location: US

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08 Mar 2011, 23:56
00:00

Difficulty:

25% (medium)

Question Stats:

64% (01:18) correct 36% (00:21) wrong based on 33 sessions

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

Last edited by chetan2u on 16 May 2016, 19:34, edited 1 time in total.
updated OA
Director
Status: Impossible is not a fact. It's an opinion. It's a dare. Impossible is nothing.
Affiliations: University of Chicago Booth School of Business
Joined: 03 Feb 2011
Posts: 900
Re: Is x < y? [#permalink]

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09 Mar 2011, 04:49
I think its E. There is no useful relationship between x and y that can be setup with z.

Lolaergasheva wrote:
Is x < y?
(1) z < y
(2) z < x
Math Expert
Joined: 02 Sep 2009
Posts: 39609
Re: Is x < y? [#permalink]

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09 Mar 2011, 04:53
Lolaergasheva wrote:
Is x < y?
(1) z < y
(2) z < x

The answer to the above question is clearly E, not A: y and x are more than some number z, we can not say from this info whether x<y or not.
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Manager
Joined: 10 Feb 2011
Posts: 113
Re: Is x < y? [#permalink]

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15 Mar 2011, 09:31
Is x < y?
(1) z < y
(2) z < x
Math Forum Moderator
Joined: 20 Dec 2010
Posts: 2010
Re: Is x < y? [#permalink]

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15 Mar 2011, 09:37
banksy wrote:
Is x < y?
(1) z < y
(2) z < x

Combining both;

z=0; x=1; y=2
Z is less than x and y
x<y
OR
z=0; x=2; y=1
Z is less than x and y
x>y
OR
z=0; x=2; y=2
Z is less than x and y
x=y

NS.

Ans: "E"
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Intern
Joined: 03 Apr 2016
Posts: 20
Re: Is x < y? [#permalink]

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16 May 2016, 19:28
please edit the ans its e but question stem says a.
Re: Is x < y?   [#permalink] 16 May 2016, 19:28
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