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All the jacks, queens, kings, and aces o...

All the jacks, queens, kings, and aces of a regular 52 cards deck are taken out. The 16 cards are throughly shuffled and may opponent, a person who always tells the truth, simultaneously draws two cards at random and says, "I hold at least one ace". The probability that he holds two aces is (a)2/8 (b)4/9 (c)2/3 (d)1/9

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