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A card is drawn from a deck of card.Find the probability that chosen card is ace, king or queen.

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52 prob. to get one ace out of 52 cards

= 4C1/52C1 = 4/25 = 1/13

Prob. to get one king out of 52 cards

= 4C1/52C1 = 4/52 = 1/13

Similarly, prob. to get one queen out of 52 cards

= 4C1/52C1 = 4/52 = 1/13

Thus, probability to get ace, king or queen.

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