Discussion :: Data Sufficiency
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How many brothers does Rahul have?
I. Rahul's father has three children.
II. Rahul has one sister.
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A.
Statement I alone is sufficient, but statement II alone is not sufficient
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B.
Statement II alone is sufficient, but statement I alone is not sufficient
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C.
Either I or II is sufficient
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D.
Data in both the statements together are not sufficient
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E.
Both I and II are needed
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Answer : Option E
Explanation :
From both the statements, we conclude that Rahul's father has three children and Rahul has one sister. It means Rahul has one brother. Thus, both I and II are needed to answer the question.
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