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प्रश्न
All kings, queens and aces are removed from a pack of 52 cards. The remaining cards are well-shuffled and then a card is drawn from it. Find the probability that the drawn card is a red card.
उत्तर
There are 4 kings, 4 queens and 4 aces. These are removed.
Thus, remaining number of cards = 52 − 4 − 4 − 4 = 40.
Number of red cards now = 26 − 6 = 20.
∴ P(getting a red card) =`("Number of favourable outcomes")/"Number of all possible outcomes"`
`= 20/40 = 1/2`
Thus, the probability that the drawn card is a red card is `1/2`.
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