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#1 BMAD

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Posted 14 March 2014 - 05:45 PM

In an presidential election between Bipa and Viktor, the winning candidate Bipa received n+k votes, whereas Viktor has received n votes. (n and k are positive integers.)  If ballots are counted in a random order, what is the probability that Bipa's accumulating count will always lead his opponent's, and why?


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#2 harey

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Posted 15 March 2014 - 03:58 PM

We already had this problem, something like drawing two different fruits from a handbag. I just cannot locate it.

 

 

Spoiler for Hidden solution:


Edited by bonanova, 15 March 2014 - 04:36 PM.
spolier

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