There are 3 bags 
and 
. Bag 
contains 2 white and 3 black balls, bag 
contains 4 white and 2 black balls and bag 
contains 3 white and 2 black balls. If a ball is drawn at random from a randomly chosen bag, then the probability that the ball drawn is black, is
Text Solution
Verified by ExpertsB
Given, there are three bags A, B and C and bag 
has 2 white, 3 black balls, 
has 4 white and 2 black balls and bag 
has 3 white and 2 black balls.
Let event of drawing black ball from bags, 
and 
Required probability
Probability of black ball from bag A
Probability of black ball from bag B
Probability of black ball from bag 
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