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How is B related to A? Statement I: B studies in the same class as A. Statement II: B is the daughter of the only son of A.

Competition practiceData Sufficiency
  • ABoth statements together are needed (neither alone is sufficient)
  • BStatement II alone is sufficient but Statement I alone is not
  • CEither statement alone is sufficient
  • DStatement I alone is sufficient but Statement II alone is not

Step-by-Step Solution

I gives no family link. By II, B is the daughter of A's son, so B is A's granddaughter; II alone suffices.
Answer: B) Statement II alone is sufficient but Statement I alone is not

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