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# If 0<=x<=4 and y<12, which of the following

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Manager
Joined: 01 Dec 2011
Posts: 69
Followers: 0

Kudos [?]: 20 [3] , given: 12

If 0<=x<=4 and y<12, which of the following [#permalink]  06 Feb 2012, 02:57
3
KUDOS
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Difficulty:

5% (low)

Question Stats:

87% (01:34) correct 13% (00:34) wrong based on 129 sessions
If $$0 \leq x \leq 4$$ and $$y < 12$$, which of the following CANNOT be the value of xy?

A. -2
B. 0
C. 6
D. 24
E. 48
[Reveal] Spoiler: OA

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http://en.wikipedia.org/wiki/Kudos

Math Expert
Joined: 02 Sep 2009
Posts: 28272
Followers: 4471

Kudos [?]: 45157 [0], given: 6646

Re: if o<=x<=4 and y<12, which of the following [#permalink]  06 Feb 2012, 03:01
Expert's post
fiendex wrote:
If $$0 \leq x \leq 4$$ and $$y < 12$$, which of the following CANNOT be the value of xy?

A) -2
B) 0
C) 6
D) 24
E) 48

The maximum value of x is 4 and the maximum value of y is less than 12 hence xy cannot be 4*12=48, notice that (-4)*(-12)=48 is also impossible as x cannot be less than 0.

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Manager
Joined: 10 Jan 2010
Posts: 192
Location: Germany
Concentration: Strategy, General Management
Schools: IE '15 (M)
GMAT 1: Q V
GPA: 3
WE: Consulting (Telecommunications)
Followers: 2

Kudos [?]: 23 [0], given: 7

Re: if 0<=x<=4 and y<12, which of the following [#permalink]  06 Feb 2012, 05:52
E = 48

48 = XY or -x*-y; as x is not negativ it is would be only possible if xy = 48

AS x<=4 --> y MUST be >=12

Not possible
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 5367
Followers: 310

Kudos [?]: 60 [0], given: 0

Re: If 0<=x<=4 and y<12, which of the following [#permalink]  09 Oct 2013, 17:41
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Re: If 0<=x<=4 and y<12, which of the following   [#permalink] 09 Oct 2013, 17:41
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# If 0<=x<=4 and y<12, which of the following

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