SOLUTION: In a race in which twelve automobiles are entered and there are no​ ties, in how many ways can the first three finishers come​ in?

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Question 1131125: In a race in which twelve automobiles are entered and there are no​ ties, in how many ways can the first three finishers come​ in?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Order matters here because 1-3-6 is different
from 1-6-3
That means you use permutations and not combinations
P( 12,3 ) = +n%21%2F%28+n+-+r+%29%21+
+12%21%2F9%21+=+12%2A11%2A10+
+12%2A11%2A10+=+1320+ different ways