There are
15 technicians and 11 chemists working in
a research laboratory. In how many ways
could they form a 5-member safety
committee if the committee must have exactly one technician?

Question

There are
15 technicians and 11 chemists working in
a research laboratory. In how many ways
could they form a 5-member safety
committee if the committee must have exactly one technician?

anonymous · Answer

25C5

anonymous · Answer

11+15 = 26
(-1) technician = 26-1 = 25
(25)! / [(25-4)! (4)!

anonymous · Answer

12650

anonymous · Answer

that is not right.

anonymous · Answer

I realized i have not learned this part of the lesson yet, and my teacher is going to be going over it tomorrow

anonymous · Answer

btw the answer is 15C1*11C4=4950

anonymous · Answer

Oh my bad . I was thinking permutation and applied combination. 
Thanks for pointing out.

anonymous · Answer

No problem, we all make mistakes ;)