In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is: Choose the correct choice from the following answers:
A) 21/46
B) 25/117
C) 1/50
D) 3/25
E) 6/25
Let S be the sample space and E be the event of selecting 1 girl and 2 boys.   Then, n(S)	= Number ways of selecting 3 students out of 25   = 25C3 `   =	(25 x 24 x 23)   (3 x 2 x 1)   = 2300.   n(E)	= (10C1 x 15C2)   = 10 x	(15 x 14)   (2 x 1)   = 1050.   P(E) =	n(E)/n(S)	=	1050	/2300=	21/46	.   21/46nswer : 21/46.
<result>A</result>
In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is: