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प्रश्न
A card is drawn at random from a well-shuffled deck of playing cards. Find the probability that the card drawn is a black king.
उत्तर
Let S be the sample space of drawing a card from a well-shuffled deck.
`n(S)=""^52C_1=52`
There are 2 black king cards in a deck A card of black king can be drawn in `""^2C_1=2`
Probability of drawing a black king =2/52=1/26
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