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How is A related to B? Statement I: A's mother is the wife of B's father. Statement II: A is the brother of B. Which statement(s) is/are sufficient to answer?

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

Step-by-Step Solution

From I, A and B share parents so they are siblings, but A's gender is unknown (brother or sister). From II, A is directly the brother of B.
Answer: B) Statement II alone is sufficient but Statement I alone is not

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