How is T related to S? Statement I: T and S have the same parents. Statement II: T is the son of S's mother, is older than S, and there are no other siblings. Which statement(s) is/are sufficient to answer?

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Accepted Answer

Statement II alone is sufficient but Statement I alone is not. I makes them siblings but leaves T's gender open. II makes T a son of S's mother, hence T is S's brother.

How is T related to S? Statement I: T and S have the same parents. Statement II: T is the son of S's mother, is older than S, and there are no other siblings. Which statement(s) is/are sufficient to answer?

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