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What is the relation of K to Z? Statement I: K is the sister of Y. Statement II: Y is the father of Z.

Competition practiceData Sufficiency
  • AStatement I alone is sufficient but Statement II alone is not
  • BStatement II alone is sufficient but Statement I alone is not
  • CBoth statements together are needed (neither alone is sufficient)
  • DEither statement alone is sufficient

Step-by-Step Solution

Neither statement alone links K to Z. Together, K is the sister of Z's father, so K is Z's aunt.
Answer: C) Both statements together are needed (neither alone is sufficient)

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