Question

Eleven high school students on student council are now eligible to run for the positions of president, vice president, treasurer, and secretary. How many unique permutations of these 11 students filling the 4 positions are possible?

Answer 1

11P4

to get the answer us nPa = n!/(n-a)!

Answer 2

how do you get the answer from that

Answer 3

in general.. when you need a permutation of (r) elements from (n) elements the possibilities are

nPr = n!/(n-r)!