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2 Comments

  1. From the lesson GMAT:Punch of the Week(06-April-09)

    Sat, 11 Apr 2009 11:37:50 -0000

    5 places r dare and two 4 so 5p2/2 as two 4s are alike so ans iz 10!!!!!!

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  2. From the lesson CAT Question: Last two digits of 3^999 - (Learn the Concept)

    Sat, 07 Feb 2009 21:31:43 -0000

    at last u r dividing by 4 .if i will divide N by 2 then i will get 1.den if i will divide p+1 by 2 iam getting p =0,2….... so if we take 0 it will be 17 .. so ............den what ......... u may be lucky too divide it by 4…. then wat is the way

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