There are 3 bags:

1st bag - 1 white,2 red,3 green balls.

2nd bag-2 white,3 red,1 green balls.

3rd bag-3 white,1 red, 2 green balls.

Two balls are drawn from bag chosen at random.These are found to be 1 white, 1 red.

FIND THE PROBABILITY that the balls so drawn is from the second bag?'

Thanks!!!!