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How is Q related to P, given that Q is a female? Statement I: P is the brother of Q. Statement II: Q's mother is also P's mother. Which statement(s) are sufficient to answer the question?

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

Step-by-Step Solution

Both statements make Q and P siblings, and since Q is female, Q is P's sister either way.
Answer: B) Either statement alone is sufficient

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