Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles, Find the probability of selecting one green marble from bag A and one black marble from bag B.

1/10.

Step-by-step explanation:

There are 12 marbles in bag A and 15 in bag B.

Prob (Selecting green from bag A) = 3/12 = 1/4.

Prob (Selecting black from bag B) = 9/15 = 2/5.

So the required probability = 1/4 * 2/5

= 2/20

= 1/10.

Note that the probabilities are multiplied because the 2 events are independent.