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Math Expert
Joined: 02 Sep 2009
Posts: 47016

If x, y, and z are positive integers, is xz even? [#permalink]
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20 Nov 2017, 00:07
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84% (00:44) correct 16% (00:11) wrong based on 44 sessions
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Senior Manager
Joined: 05 Dec 2016
Posts: 259
Concentration: Strategy, Finance

Re: If x, y, and z are positive integers, is xz even? [#permalink]
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20 Nov 2017, 00:15
We need to figure out whether either x or z is are even (1) x can be odd (2) z can be odd (1)+(2) x,z can be both odd, so answer E




Re: If x, y, and z are positive integers, is xz even?
[#permalink]
20 Nov 2017, 00:15






