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Question 145
Badri has 9 pairs of dark blue socks and 9 pairs of black socks. He keeps them all in the same bag. If he picks out three socks at random, then whatis the probability that he will get a matching pair ?
Solution
Since, there are only two types of socks in the bag. So, if Badri pick up 3 socks then certainly two of them are of same type. Thus this is a certain event.
=> Required probability = 1
=> Ans - (C)
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