Question: There are three boxes, each with two drawers. Box P contains one gold coin in each drawer, Box Q contains one silver coin in each

There are three boxes, each with two drawers. Box P contains one gold coin in each drawer, Box Q contains one silver coin in each drawer, and Box R contains one gold coin in one drawer and one silver coin in the other. A box is chosen at random.

(i) What is the probability that it is Box R?

(ii) A drawer from the chosen box is opened and a gold coin is revealed. What is the probability that the box chosen is Box R?

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