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# The positive integers x, y, and z are such that x is a

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Status: Stepping into my 10 years long dream
Joined: 18 Jul 2015
Posts: 3626
Re: The positive integers x, y, and z are such that x is a  [#permalink]

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15 Mar 2018, 10:54
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dave13 wrote:
If x, y, and z are 3, 9 and 27 repectivey then how can A be sufficient ?

Hey dave13 ,

Statement 1 says xz is even. That means atleast one of them has to be even. But unfortunately, in the examples you took, both x and z are odd. Hence, invalid values.

Does that make sense?
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Re: The positive integers x, y, and z are such that x is a  [#permalink]

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15 Mar 2018, 11:02
abhimahna wrote:
dave13 wrote:
If x, y, and z are 3, 9 and 27 repectivey then how can A be sufficient ?

Hey dave13 ,

Statement 1 says xz is even. That means atleast one of them has to be even. But unfortunately, in the examples you took, both x and z are odd. Hence, invalid values.

Does that make sense?

YaY! Thank you! yes it does awesome sense of crystal logic and why i make things complicated it seems I dont follow DS rules...
Re: The positive integers x, y, and z are such that x is a &nbs [#permalink] 15 Mar 2018, 11:02

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