Respuesta :
It's a question of Permutation; = nPr = n!/(n-r)!
A.T.Q,
n=8, r=4
8!/(8-4)! =8!/4! = 8*7*6*5
=1680
OPTION C IS YOUR ANSWER.
It's a question of Permutation; = nPr = n!/(n-r)!
A.T.Q,
n=8, r=4
8!/(8-4)! =8!/4! = 8*7*6*5
=1680
OPTION C IS YOUR ANSWER.