1.

A bag ?A? contains 2 white and 3 red balls and bag ?B? contains 4 white and 5 red balls. One ball is drawn at random from a randomly chosen bag and is found to be red. The probability that it was drawn from bag ?B? was [BIT Ranchi 1988; IIT 1976]

A.        \[\frac{5}{14}\]    
B.        \[\frac{5}{16}\]
C.        \[\frac{5}{18}\]    
D.        \[\frac{25}{52}\]  
Answer» E.


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