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A question is given, followed by two statements labelled I and II. Identify which of the statements is/are sufficient/necessary to answer the question.

Question:
How is Mahesh related to Bipin?

Statements:
I. Mahesh is the son of Devika.
II. Devika is the only daughter of Bipin's father.

  • A.Statement I alone is sufficient to answer the question, while statement II alone is not sufficient to answer the question
  • B.Statement II alone is sufficient to answer the question, while statement I alone is not sufficient to answer the question
  • C.Either statement I alone or statement II alone is sufficient to answer the question
  • D.Both statements I and II are necessary to answer the question

Answer: D

Both statements together are needed, so statements I and II are both necessary. Statement I alone says Mahesh is the son of Devika, which does not connect him to Bipin. Statement II alone says Devika is the only daughter of Bipin's father, which makes Devika Bipin's sister but names nothing about Mahesh. Taken together, Mahesh is the son of Bipin's sister, so Mahesh is Bipin's nephew. Neither statement alone answers the question, so the options that call one statement sufficient, or either one sufficient, are wrong.

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