Question

one bag contains 6 white and 5 black balls. another bag contains 5 white and 3 black balls one ball at random is transferred from first bag to the second bag. and then a ball is selected from second bag then find the probability that the ball drawn is white

Answer 1

there are two cases formed .
1st ,
If the ball transferred will be a black ball then , then the probability of getting a white ball will be => 5/9
2nd ,
If the ball transferred will be a white ball then , the probability of getting a white ball will be =>
6/9 which is equal to 2/3 .