Answer:
1320
Explanation:
There are 12 hordes, so any one of the 12 can come in first.
12 ×
After one horse comes in first, there are 11 horses left to choose from.
12 × 11 ×
After the second horse finishes, there are 10 horses left to choose from.
12 × 11 × 10 =
= 1320