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Source: — Data Sufficiency |
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by thephoenix » Wed May 26, 2010 3:16 am
gmatmachoman wrote:What is the value of xyz?
(1) y! = 6 and x! > 720
(2) z is the least even integer greater than -1
IMO B

s1) gives us only y , nothing about x and z; x>6 can have any value

s2) z=0 irrespective of x,y x*y*z will be 0

oa ans source pls
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by akondakar » Wed May 26, 2010 3:20 am
The answer is B
Statement 1 alone is not sufficient because we have no information about z
From statement 1, we know z=0, if we consider 0 as an even integer, so the value of the whole expression is xyz = 0
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by frank1 » Wed May 26, 2010 3:20 am
B
I think it tries to test the debate either 0 is odd or even...
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by selango » Wed May 26, 2010 4:30 am
According to OG, 0 is an even integer.
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by Patrick_GMATFix » Wed May 26, 2010 3:17 pm
selango wrote:According to OG, 0 is an even integer.
The OG is right. Definition of even: Even is a # that can be expressed as 2k where k is an integer. Since 0 can be expressed as 2k where k is the integer 0, then 0 is even.
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by indiantiger » Wed May 26, 2010 6:35 pm
What is the value of xyz?
(1) y! = 6 and x! > 720
(2) z is the least even integer greater than -1

Need to find xyz = ?

Of the two statements 2 seems more easy

2) z = 0 which implies xyz = 0

Rule out A,C,E lets check for D

1) y = 3 and x! > 6! but does not say anything about z rule out D
answer (B)
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