Posted by corey on Monday, May 23, 2011 at 7:37pm.
There are 6 boys and 8 girls in a group of students. Calculate the number of ways that a committee of 3 students which has at least 1 girl can be selected from the group.
Please show your work.

math  MathMate, Monday, May 23, 2011 at 8:07pm
Number of ways to choose 3 students from 14 = C(14,3) = 14!/((143)!3!)
Number of ways to choose 3 students from 8 boys = C(8,3) = 8!/((83)!3!)
Number of ways to choose 3 students with at least one girl
= C(14,3)C(8,3) 
math  corey, Monday, May 23, 2011 at 8:15pm
thank you!

math :)  MathMate, Monday, May 23, 2011 at 9:03pm
You're welcome!