There are 13 boys and 10 girls in a class. If three students are selected at random, in how many ways that 1 girl & 2 boys are selected ?	Choose the correct choice from the following answers:	A) 120	B) 480	C) 780	D) 720	E) 800
n(s) = sample space = 237803 = 1771   E = event that 1 girl and 2 boys are selected   n(E) = we have to select 2 boys from 13 and 1 girl from 10   = 137802 * 107801   = 780   Ans - 780
<result>C</result>
There are 13 boys and 10 girls in a class. If three students are selected at random, in how many ways that 1 girl & 2 boys are selected ?