There is a class consisting of 12 CS majors, 10 math majors, and 9 stats majors. How
many ways are there to make a 4-person committee of CS majors? How many ways are
there of making a committee with 4 CS majors, 4 math majors, and 3 stats majors?

Question

There is a class consisting of 12 CS majors, 10 math majors, and 9 stats majors. How 
many ways are there to make a 4-person committee of CS majors? How many ways are 
there of making a committee with 4 CS majors, 4 math majors, and 3 stats majors?

anonymous · Answer

I got 12*11*10*9= 11,880 ways for the CS committee but I am not sure how to approach the second part.