AP EAMCET Engineering 21 Apr 2019 Shift 1 Paper

There are 3 bags A. B and C. Bag A contains 2 white and 3 black balls, bag B contains 4 white and 2 black balls and Bag C 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