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Re: how many ways to pick two teams of 10 out of a group of 20 people
Posted:
Feb 5, 2013 2:11 PM
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"G Patel" <gaya.patel@gmail.com> wrote in message news:13ae8675-030d-4087-94e6-4490d6b7662c@googlegroups.com... > Is it 20 choose 10 or do I have to divide by 2? > >
are each of the people, unique ?
are there any biological twins dressed alike ?
are any of these people identical to each other ?
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