Question 856105
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Hi,
6P5 = 720 = 6!/(6-5)! = 6*5*4*3*2*1 = 720

Note:  6C5 = 6 = {{{6!/(5!(6-5)!) = 6cross(5*4*3*2*1)/cross(5*4*3*2*1)}}} = 6