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Gennadiy

Post subject: Re: GMAT Number Theory Posted: Wed Oct 31, 2012 5:15 pm 

Joined: Sun May 30, 2010 2:23 am Posts: 498


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questioner

Post subject: Re: GMAT Number Theory Posted: Wed May 22, 2013 11:27 am 

Joined: Sun May 30, 2010 3:15 am Posts: 424

Wrong answer, suppose n = 6, a = 1, m = 9.


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Gennadiy

Post subject: Re: GMAT Number Theory Posted: Wed May 22, 2013 11:33 am 

Joined: Sun May 30, 2010 2:23 am Posts: 498


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questioner

Post subject: Re: GMAT Number Theory Posted: Wed May 22, 2013 12:09 pm 

Joined: Sun May 30, 2010 3:15 am Posts: 424

n = 2m × k (given) , if k = 1 and m = 2, then n = 4. m is NOT divisible by m. So, it is not sufficient as well.


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Gennadiy

Post subject: Re: GMAT Number Theory Posted: Wed May 22, 2013 12:21 pm 

Joined: Sun May 30, 2010 2:23 am Posts: 498


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questioner

Post subject: Re: GMAT Number Theory Posted: Thu Aug 15, 2013 2:57 pm 

Joined: Sun May 30, 2010 3:15 am Posts: 424

I think statement 2 is insufficient as well: if 2m is divisor of n then let's say that m = n = 3 > 6/3 = 2 let's say, in addition, that a = 1 then 3 is not divisor of 9 (3²).


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Gennadiy

Post subject: Re: GMAT Number Theory Posted: Thu Aug 15, 2013 3:02 pm 

Joined: Sun May 30, 2010 2:23 am Posts: 498


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