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Question: How is T related to W? Statement I: T is the father of W's mother. Statement II: W's mother is the only child of T. Which statement(s) is/are sufficient to answer the question?

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

Step-by-Step Solution

I fixes T as father (male) of W's mother, i.e. W's maternal grandfather. II only says T is a parent of W's mother, so T could be grandfather or grandmother.
Answer: B) Statement I alone is sufficient but Statement II alone is not

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