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A treasure is found in a random box on a 3 3 board. A seeker starts in the top left corner of the board and

A treasure is found in a random box on a 3 3 board. A seeker starts in the top left corner of the board and checks if there is any treasure in it. Then, at each stage the seeker takes a step right or down at random and searches for the treasure in the slot he has reached, until he exits the board. what The probability that he will find the treasure during his wanderings?

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