The probability of drawing to marbles then a white one without replacement will be as follows;
total number of marbles=16
total number of black marbles=7
total number of white marbles=9
probability of drawing a black marble on first=7/16
probability of drawing a black marble on second draw=6/15
probability of drawing a white marble on the 3rd draw=9/14
thus the P(B and B and W)
=7/16*6/15*9/14
=9/80
the answer is 9/80
