asked 192k views
1 vote
How many ways can 5 sopranos and 4 altos be selected from 7 sopranos and 9 altos?

1 Answer

4 votes
They can be selected in 2646 ways.


_7C_5*_9C_4=(7!)/(5!2!)*(9!)/(4!5!)=21*126=2646
answered
User Sam Coles
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