00:01
So we have a room full of politicians, and we want to pick 17 for a committee.
00:05
How can we do that? well, the order which we do, it doesn't matter.
00:08
So we're going to take however many people are in the room, which we don't know how many there are, and pick 17.
00:14
So that's going to be our first answer.
00:16
So now i want to know if you have to have at least two of each party.
00:20
So that means i want to take a combination of in democrats.
00:25
So we're just going to say the democrats picking two at a time.
00:27
And then we'll have the combination of the republicans taking two at a time, a combination of the independence taking two at a time.
00:36
So now we've taken care of six seats.
00:38
It says at least two.
00:40
So that means i can take the remainder of the seats and pick them any way i want.
00:44
So i have a combination of the other end minus those six that we've already chosen, and how many more do we need? we need 11 more to make 17...