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प्रश्न
From a pack of 52 cards, two cards are drawn at random. Find the probability that one is a king and the other is a queen.
उत्तर
The number of kings is 4
The number of queens is 4
Two cards are drawn.
The probability of one king and one queen is, = `(4"C"_1 xx 4"C"_1)/(52"C"_2)`
= `(4 xx 4 xx 2)/(52 xx 51)`
= `8/(13 xx 51)`
= `8/663`
= 0.012
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