Question 1190633
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A = P(1st is a boy) = (number of boys)/(number of students total)
A = P(1st is a boy) = 3/9
A = P(1st is a boy) = 1/3


B = P(2nd is a girl, given 1st is a boy) = (number of girls)/(number of students left)
B = P(2nd is a girl, given 1st is a boy) = (6)/(9-1)
B = P(2nd is a girl, given 1st is a boy) = 6/8
B = P(2nd is a girl, given 1st is a boy) = 3/4


P(1st is a boy, 2nd is a girl) = A*B = (1/3)*(3/4) = 1/4


Answer: <font color=red>1/4</font>
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