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How is P related to Q? I. P is the brother of R.
II. R is the son of Q.

Competition practiceData Sufficiency
  • ABoth statements together are needed (neither alone is sufficient)
  • BEither statement 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

Statement I alone links P only to R, and statement II alone links R only to Q. Together, P is R's brother and R is Q's son, so P is also Q's son.
Answer: A) Both statements together are needed (neither alone is sufficient)

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