Question

A bag contains 8 red, 12 white and 4 blue marbles. If 2 marbles are selected in succession (without replacement), find the probability as a common fraction in simplest form that first is red and second is blue

Answer 1

first red = 8/24
second blue = 4/23
so
(1/3)(4/23) = 4/69

Answer 2

The Answer is The Probality of picking a Black Marble from the Bah is 0.06