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How is T related to S? Statement I: T is the son of the only child of S's father's father. Statement II: T is the only brother of S.

Competition practiceData Sufficiency
  • AStatement I alone is sufficient but Statement II alone is not
  • BBoth statements together are needed (neither alone is sufficient)
  • CStatement II alone is sufficient but Statement I alone is not
  • DEither statement alone is sufficient

Step-by-Step Solution

By I, the only child of S's paternal grandfather is S's father, so T (a son) is S's brother. By II, T is directly S's brother. Each alone suffices.
Answer: D) Either statement alone is sufficient

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