Problema Solution
Fred,Ashey,Monica and James are the first four batters on a basketball team. The coach is still deciding the order in which to have them bat. How many different ways can the coach moarrange them?
Answer provided by our tutors
Since tho reder of the batters counts we need to find the number of permutations of 4 elements.
The number of permutations of n distinct objects is n×(n − 1)×(n − 2)×⋯×1, which is commonly denoted as "n factorial" and written "n!".
In our case n = 4.
So there are 4! = 1*2*3*4 = 64 ways or arranging them.