00:01
Okay, so for part a, we have that there are 10 choices for the secretary.
00:09
And after selecting the secretary, there are nine remaining choices for the treasurer.
00:14
And after selecting the treasurer, there are eight choices left for the social convener.
00:24
And after selecting the social convener, there are seven choices left for the fundraising chair.
00:30
So, what we're gonna do is to multiply those numbers to get the total number of ways to fill this position, which turns out to be 50 -40 ways.
00:50
Now, as for b, we need a specific information about the console described on page 223, but i'll give you a general guidance as to how to solve this kind of problem.
01:03
So, the council must consist of a president and vice president who are grade 12 students and grade representatives that represent their current grade level...