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How is P related to Q? Statement I: P is the son of R, and R is the mother of Q. Statement II: Q is the daughter of R.

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

Step-by-Step Solution

From I, P is a son of R and Q is R's child, so P is the brother of Q; this fixes the relation. II mentions only Q and R, giving nothing about P.
Answer: B) Statement I alone is sufficient but Statement II alone is not

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