Question

in a race there are 15 runners. trophies for the race are rewarded to the runners finishing in first through fourth place. in how many ways can first through fourth place be determined?

Answer 1

Explanation:

And for 4th place, you can have any one of the 12 runners who haven't finished finish there. So, you take all of the possibilities, and times them together, 15x14x13x12 = 37,260 different possibilities.

(sorry if it wrong)