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:  A) 21/46  B) 25/117  C) 1/50  D) 3/25  E) 2/25
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: