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If x, y, and z are positive integers, is x  y  z positive ? [#permalink]
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14 Sep 2014, 23:42
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If x, y, and z are positive integers, is x  y  z positive ? (1) x > y (2) y > z
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Re: If x, y, and z are positive integers, is x  y  z positive ? [#permalink]
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15 Sep 2014, 00:40
clipea12 wrote: If x, y, and z are positive integers, is x  y  z positive ?
(1) x > y
(2) y > z It's straight E. When we combine the statements we get that x > y > z but this does not mean that x is greater than the sum of y and z: If x = 100, y = 2 and z = 1, then x  y  z is positive. If x = 3, y = 2 and z = 1, then x  y  z is NOT positive. Answer: E.
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Re: If x, y, and z are positive integers, is x  y  z positive ? [#permalink]
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18 Sep 2014, 11:43
hahaha.. nice trap!!!



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Re: If x, y, and z are positive integers, is x  y  z positive ? [#permalink]
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27 Jan 2015, 13:09
E.....3,2,1 not possible



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Re: If x, y, and z are positive integers, is x  y  z positive ? [#permalink]
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27 Jan 2015, 21:05
Algebraic approach
In order for X  Y  Z to happen you need the following condition to be met.
X  (Y + Z). You factor out the negative in Y and Z to make (Y + Z)
The statement does not give you anything related to this.
It does give you X > Y > Z however this still has nothing to do with the above requirement.



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Re: If x, y, and z are positive integers, is x  y  z positive ? [#permalink]
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31 Aug 2017, 05:31
Is xyz>0?
means, Is x>y+z OR xy>z OR xz>y?
St1 Or St2 not suff.
St1 And St2 means x>y>z. None of above. INSUFF
E




Re: If x, y, and z are positive integers, is x  y  z positive ?
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31 Aug 2017, 05:31






