Question

Jones is the Chairman of a committee. In how many ways can a committee of 5 be chosen from 10 people given that Jones must be one of them?

Answer 1

Pick Jones first.
Then you make a committee of 4 from 9 people.

Answer 2

ok

Answer 3

and then should i multiply

Answer 4

Well, then you have 9C4 as they say.
And Jones position is irrelevant.

Answer 5

so it is 9^c4

Answer 6

so it can't be determine