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Question: How is Tanya related to the man in the photograph? Statements: Man in the photograph is the only son of Tanya's grandfather. The man in the photograph has no brothers or sisters and his father is Tanya's grandfather.

I alone is sufficient while II alone is not sufficient
II alone is sufficient while I alone is not sufficient
Either I or II is sufficient
Neither I nor II is sufficient
Both I and II are sufficient

Correct Answer: II alone is sufficient while I alone is not sufficient

Explanation:

From I, we conclude that the man is the only son of Tanya's grandfather i.e. he is Tanya's father or Tanya is the man's daughter.

From II, we conclude that the man's father is Tanya's grandfather. Since the man has no brothers or sisters, so he is Tanya's father or Tanya is the man's daughter.

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