9000139702

SubArea: 
Combinatorics
Level: 
A
Project ID: 
9000139702
Accepted: 
1
Clonable: 
0
Easy: 
1
A race was attended by 12 competitors. Find the number of possible orderings of the competitors on the first three places of the scoreboard.
12!9!=1320
312=531441
12!9!3!=220
12!3!=2874009600