Question

Five students are lining up to give speeches One student must go first as he has to leave early How many different speech orders are possible?

Answer 1

You have 4 students (ignore the first one that has to go first) and they are arranged in 4 slots

So you have 4 choices for slot 2
you have 3 choices for slot 3
you have 2 choices for slot 4
you have 1 choices for slot 5

multiply these numbers out to get: 4*3*2*1 = 24

Answer 2

thank you :)

Answer 3

np