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How is Kunal related to Nisha? Statement I: Nisha is the only daughter of Kunal's mother. Statement II: Kunal's father has only two children, Kunal and Nisha.

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, Nisha is the only daughter of Kunal's mother, so if Kunal were female the mother would have two daughters — hence Kunal is male and is Nisha's brother (sufficient). Statement II makes them siblings but leaves Kunal's gender open, so it is not sufficient.
Answer: C) Statement I alone is sufficient but Statement II alone is not

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