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Q NO 266 OFFICIAL GUIDE 2017

This topic has 3 expert replies and 0 member replies

Q NO 266 OFFICIAL GUIDE 2017

Post Sun Feb 19, 2017 8:12 am
IN THE QUESTION(ATTACHED HEREWITH), I THINK THE ANSWER SHOULD BE E. THEY HAVE SEEMED TO HAVE OVERLOOKED THE POSSIBILITY OF "ZERO" WHICH ALSO SATISFIES BOTH THE STATEMENTS 1 & 2 AND ZERO IS NOT EVEN. HENCE BOTH STATEMENTS ARE INSUFFICIENT.
PLEASE CLARIFY
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GMAT/MBA Expert

Post Sun Feb 19, 2017 8:21 pm
Hi googly76,

Another way to think of all of this is to consider a Number Line. The integers on a Number Line always alternate... odd, even, odd, even, etc.

For example:
-3 = odd
-2 = even
-1 = odd
0 = even
1 = odd
2 = even
Etc.

GMAT assassins aren't born, they're made,
Rich

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Post Sun Feb 19, 2017 11:04 am
googly76@gmail.com wrote:
IN THE QUESTION(ATTACHED HEREWITH), I THINK THE ANSWER SHOULD BE E. THEY HAVE SEEMED TO HAVE OVERLOOKED THE POSSIBILITY OF "ZERO" WHICH ALSO SATISFIES BOTH THE STATEMENTS 1 & 2 AND ZERO IS NOT EVEN. HENCE BOTH STATEMENTS ARE INSUFFICIENT.
PLEASE CLARIFY
And if you're curious, you can think of the definition of an even number as any 'n' that satisfies n = 2k, where k is an integer. If k = 0, then n = 0, and thus 0 is even.

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Post Sun Feb 19, 2017 10:04 am
googly76@gmail.com wrote:
IN THE QUESTION(ATTACHED HEREWITH), I THINK THE ANSWER SHOULD BE E. THEY HAVE SEEMED TO HAVE OVERLOOKED THE POSSIBILITY OF "ZERO" WHICH ALSO SATISFIES BOTH THE STATEMENTS 1 & 2 AND ZERO IS NOT EVEN. HENCE BOTH STATEMENTS ARE INSUFFICIENT.
PLEASE CLARIFY
Though zero is neither positive nor negative, zero is even - important number property to file away!

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