I do not understand how to work this problem out. I have a series of other questions that are similar, and it would really help me out if someone could help me understand how to work this problem.

At the first tri-city meeting, there are 8 people from town A, 7 people from town B, and 5 people from town C. If a council consisting of 5 people is randomly selected, find the probability that 3 are from town A and 2 are from town B.

1 answer

I answered this same question for you in

http://www.jiskha.com/display.cgi?id=1260061099

I was using standard notation and methods for this type of problem.
What part of it don't you understand ?