Question

There were 11 students running in a race how many different arrangements of first second and third place are possible

Answer 1

990

Step-by-step explanation:

For first place, we have 11 choices

11 × __ × __

For second place, we have 10 choices

11 × 10 × __

And for third place, we have 9 choices

11 x 10 x 9 = 990 ways

This is also a permutation

11! / (11-3)! = 990

Hope it helps