Ten people are competing for the title of "Best Singer in the World". There will be a 1st place and

Ten people are competing for the title of "Best Singer in the World". There will be a 1st place and a 2nd place awarded. How many different ways can the 1st and 2nd place be awarded?:


We have a combinations problem of 10 choose 2.

Using our permutations calculator, we see that:
10 P 2 = 90 ways