Question

There are 3 bags : first containing 1 white, 2 red, 3 green balls; second 2 white, 3 red, 1 green balls and third contains 3 white, 1 red and 2 green balls. two balls are drawn from a bag chosen at random. these are found to be 1 white and 1 red. find the probability that the ball so drawn came from the second bag

Answer 1

total no.of balls are 6
the probability of getting a white ball from second bag is 2/6=1/3
the probability of getting a red ball = 3 / 6=1/2