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प्रश्न
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
either a black card or a king
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उत्तर
There are 26 black cards and 4 kings, but two kings are already black. Hence, we only need to count the red kings. Thus, the probability is: (26+2)/52 = 7/13
संबंधित प्रश्न
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the ace of spades
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is:
red?
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H T T H T H H H T T H T H T T. The chance of occurrence of a head is 50 per cent.
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