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M04-23

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New post 16 Sep 2014, 00:23
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  5% (low)

Question Stats:

79% (00:29) correct 21% (00:17) wrong based on 164 sessions

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New post 16 Sep 2014, 00:23
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New post 27 Aug 2015, 10:34
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I think this is a poor-quality question and I don't agree with the explanation. when z=6 in first statment, z/3 odd, but z is even na. how it is sufficient?
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M04-23  [#permalink]

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New post Updated on: 10 Jan 2019, 03:07
What about 3 (1/3)=1

Originally posted by wali786 on 10 Jan 2019, 02:28.
Last edited by wali786 on 10 Jan 2019, 03:07, edited 1 time in total.
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New post 10 Jan 2019, 02:41
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New post 10 Jan 2019, 03:06
Is integer zz odd?
(1) z3 is odd

(2) 3z is odd

Second Statement says 3z is odd. According to statement 2, z could (1/3) then 3z=1, which is still odd.
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New post 10 Jan 2019, 03:11
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New post 10 Jan 2019, 07:01
Bunuel wrote:
Is integer \(z\) odd?


(1) \(\frac{z}{3}\) is odd

(2) \(3z\) is odd


#1 :
z has to be odd sufficeint

#2 :
3z : will give odd integer when z is odd
sufficient

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Re: M04-23   [#permalink] 10 Jan 2019, 07:01
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