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How is R related to S? Statement I: R is a child of S's grandfather. Statement II: R is the son of S's father.

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

From I, R could be S's father, uncle or aunt, so it is not decisive. Statement II makes R a son of S's father, i.e. S's brother.
Answer: A) Statement II alone is sufficient but Statement I alone is not

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