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gmat prep

by robzoc » Fri Oct 03, 2008 12:40 pm
can any one tell me if this question has been posted ? I just wanted to find out the right answer so I can go on on "dissecting" all the possible quesitons... woudl apreciate if it comes with resolution..

ciao
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by raju232007 » Fri Oct 03, 2008 1:11 pm
[m]=3m ( if m is odd)
[m] =0.5m ( if m is even)

[9]*[6]=3(9)*0.5(6)=81

Nos scan the ans choices nd look for the answer choice when evaluated gives 81...You will find that choice D gives 81

[27]=3(27)=81

Therefore the ans is D...[27]
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by afterhours » Fri Oct 03, 2008 2:22 pm
simple question about the writing of the question:

what is [m]? function of m?
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