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[Post New]6 Jan 2007 12:52:44 IST
    Subject: Permutation & Combinations
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ace (24)

Cool goIITian

Olaaa!! Perrrfect answer. 4  [6 rates]
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sir but what if they move in 2,2,2,3 thats four floors then wont ur logic be incorrect.
ace of knaves
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