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# If m is an integer, is m odd? (1) m/2 is Not an even integer

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Intern
Joined: 26 Feb 2008
Posts: 37
If m is an integer, is m odd? (1) m/2 is Not an even integer [#permalink]

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06 Mar 2008, 16:41
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If m is an integer, is m odd?

(1) m/2 is Not an even integer

(2) m-3 is an even integer
Director
Joined: 10 Sep 2007
Posts: 938

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06 Mar 2008, 16:46
Statement 1:
Take m = 6, so m/2 =3 not an even integer, in fact any value divided by 2 if it gives a odd result, then initial number must be multiple of even. Because either Even/Even or Odd/Odd can result in odd number and as 2 is even so numerator should be even as well. So this can answer that m is not odd.

Statement 2:
Take m = 7, so m - 3 = 4. Infact any number is substracted by 3 resulting in even number should be odd. Because odd - odd = even. So this can also answer m is odd.

Intern
Joined: 26 Feb 2008
Posts: 37

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06 Mar 2008, 17:25
That's how I did it, but D is not the answer.
Director
Joined: 14 Jan 2007
Posts: 774

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06 Mar 2008, 18:25
1
KUDOS
It should be 'B'.

Stmt1: m/2 not an even int
m=7, m is odd
m=14, m is even
So not Suff

Stmt2:m-3 =even
m = 3+even = odd
Suff

Hence 'B'
VP
Joined: 03 Apr 2007
Posts: 1342

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06 Mar 2008, 18:37
shils01 wrote:
That's how I did it, but D is not the answer.

Stat 1 says m/2 is not an even int.
That implies m/2 could be an odd int or not an int.
Most of us assume m/2 to be an odd int and hence end up with D as an answer
Intern
Joined: 26 Feb 2008
Posts: 37

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06 Mar 2008, 20:01
goalsnr wrote:
shils01 wrote:
That's how I did it, but D is not the answer.

Stat 1 says m/2 is not an even int.
That implies m/2 could be an odd int or not an int.
Most of us assume m/2 to be an odd int and hence end up with D as an answer

Senior Manager
Joined: 20 Dec 2004
Posts: 251

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07 Mar 2008, 05:26
goalsnr wrote:
shils01 wrote:
Most of us assume m/2 to be an odd int and hence end up with D as an answer

I fell for it...
_________________

Stay Hungry, Stay Foolish

Re: DS   [#permalink] 07 Mar 2008, 05:26
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