Six dice are thrown simultaneously. find the probability that exactly 3 of them show the same face and the remaining three show different faces

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visit this link also. https://gateoverflow.in/52664/probability?show=55810

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visit this link. https://math.stackexchange.com/questions/2781961/probability-that-exactly-three-of-them-shows-the-same-face-and-remaining-three-s

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