A bag contains 5 red, 3 green, 4 blue and 8 yellow marbles.
Total number of marbles = 5+3+4+8 = 20
we have to find probability of randomly selecting a green marble and then a yellow marble if the first marble is replaced..
first probability of selecting green marble is 3/20.
and probability of selecting a yellow marble will be...8/20
but in question ..first marble can be replaced
the required probability will be (3/20) * (8 / 20) = 24/400 = 3/50
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