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When a certain biased die is rolled, a particular face occurs with probability 1 \over 6 - x and its opposite face occurs with probability 1 \over 6 + x. All other faces occur with probability 1 \over 6. Note that opposite faces sum to 7 in any die. If 0 < x < 1 \over 6, and the probability of ob... | Watch the step-by-step video solution for this NIMCET PYQ.