Probability......
there are two urns..U1 and U2... In U1 there are three white balls and two red balls. In urn U2 there is only one white ball. now a coin is tossed.if head appears..then only one ball is taken out of U1 randomly and put into U2. if tail appears..then 2 balls are taken out of U1 and put into U2 randomly.
now after doing this...a ball is randomly chosen from U1..what is the probability that the ball is white???
The answer is 0.7666.
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This question is wrong.
Although i was able to give correct answer after 3 attempts.. i could also figure out the mistake..
The question should ask the Probability of drawing a white ball out of U2 in the end..instead of U1.
Please correct..!!