Question:
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 what is the probability that he will get a matching pair ?
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 what is the probability that he will get a matching pair ?
Updated On: Oct 3, 2024
- (29C29C1)/18C3
- (9C29C1)/18C3
- 1
- None of these
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The Correct Option is C
Solution and Explanation
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.
\(\rightarrow\)Required probability = 1
The correct answer is (C) :1
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