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Level pending

Let U1 and U2 be two urns such that U1 contains 3 white and 2 red balls, and U2 contains only 1 white ball. A fair coin is tossed. If head appears then 1 ball is drawn at random from U1 and put into U2. However, if tail appears then 2 balls are drawn at random from U1 and put into U2. Now 1 ball is drawn at random from U2. The probability of the drawn ball from U2 being white is what?

HELP IN ANSWER:- IF SUPPOSE THE ANSWER IS 14/40, THEN IT MEANS 14 DIVIDED (UPON) 40.

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