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How is Q related to P? Statement I: Q is a sibling of P. Statement II: Q is the son of P's mother. Which statement(s) is/are sufficient to answer the question?

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

Step-by-Step Solution

From I, Q is a sibling but the gender is unknown (brother or sister). From II, Q is the son of P's mother, so Q is P's brother.
Answer: C) Statement II alone is sufficient but Statement I alone is not

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