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What is the probability of getting two black socks from a drawer containing only black and red socks?
Statement I: There are total 36 socks in the drawer.
Statement II: The probability of the first sock being black is 1/6.
If the data in statement I alone is sufficient to answer the question.
If the data in statement II alone is sufficient to answer the question.
If the data either in statement I alone or statement II alone are sufficient to answer the question.
If the data given in both I and II together are not sufficient to answer the question.
If the data in both the statements I and II together are necessary to answer the question.
From statement II, prob of second sock being black cannot be known. If we use both statements: Since total 36 socks are there and prob of first being black is 1/6,
it can happen only when there are 6 black socks in the drawer to make the first prob as 6/36 = 1/36.
So we can know that prob of second sock being black is 5/35. And then the prob. can be found.
Hence, opiton 5 is the correct answer.
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