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JEE Advanced Mathematics question

MathematicsProbabilityJEE Advanced

Five horses are in a race. A man selects two of them at random and bets on them. All the horses have equal chances of winning. The probability that the man selected the winning horse is

Answer: (C)

Solution

Selections of 2 horses from 5: . Selections containing the (one) winning horse: choose the winner and any one of the other 4:

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Question ID VK-110355