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Advanced Staregy - Chapter 11 Odds & Even

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charbit.benjamin
 Post subject: Advanced Staregy - Chapter 11 Odds & Even
 Post Posted: Mon Apr 11, 2011 12:56 pm 
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Course Students


Posts: 2
Hello,

P.148, there is a data sufficiency "what is the remainder when a is divided by 4?"
For (1) we have : a is the square of an odd integer.
My question is easy : is "1" a possible value for a ? Because the explanation does not consider that scenario.

Thanks a lot

Ben
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srcc25.anu
 Post subject: Re: Advanced Staregy - Chapter 11 Odds & Even
 Post Posted: Tue Apr 12, 2011 5:18 am 
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Students


Posts: 1
Even if we consider 1, square of 1 = 1 and 1 divided by 4 leaves a remainder of 1 (same as square of any other odd integer). hence there is no apparent discrepancy in the final answer but in my view, yes we should consider 1 also.

charbit.benjamin wrote:
Hello,

P.148, there is a data sufficiency "what is the remainder when a is divided by 4?"
For (1) we have : a is the square of an odd integer.
My question is easy : is "1" a possible value for a ? Because the explanation does not consider that scenario.

Thanks a lot

Ben
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tim
 Post subject: Re: Advanced Staregy - Chapter 11 Odds & Even
 Post Posted: Fri Apr 15, 2011 9:38 pm 
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ManhattanGMAT Staff


Posts: 2183
Location: Southwest Airlines, seat 21C
i'm totally confused. of course they didn't consider 1 as a scenario. they didn't consider ANY specific numbers as a scenario. why did you single out 1 and ask about it?

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Tim Sanders
Manhattan GMAT Instructor
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