Nine actors audition for four different parts in a play.
In how many ways can the play director fill these roles?
A) 368,880
B) 15,120
C) 3024
D) 126
2 answers
What is your choice and why ?
C
9P4 = C
There are 9 slots, in which 4 parts can be placed in. Order also matters for each part/role. Therefore, 9P4
9P4 = C
There are 9 slots, in which 4 parts can be placed in. Order also matters for each part/role. Therefore, 9P4