There are 15 members of the show choir. In how many ways can you arrange 4 members in the front row when order does not matter?

asked May 18, 2017 77.5k views

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32760 ways. Because it is a permutation it would be 15!. Which is 15*14*13*12*11*10*9*8*7*6*5*4*3*2*1

Risingtiger answered May 18, 2017

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We need to find the number of combinations of the 15 members taken 4 at a time:

15C4=(15!)/(4!11!)=(15*14*13*12)/(4*3*2*1)=1365

Kantal answered May 22, 2017

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