Question : How is Tanya related to the man in the photograph ?

Statements :
I. Man in the photograph is the only son of Tanya's grandfather.
II. The man in the photograph has no brothers or sisters and his father is Tanya's grandfather.

Question : How is Tanya related to the man in the photograph ?

Statements :
I. Man in the photograph is the only son of Tanya's grandfather.
II. The man in the photograph has no brothers or sisters and his father is Tanya's grandfather. Correct Answer Either I or II is sufficient

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.

Related Questions

The question below consists of two statements numbered I and II. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give the answer: How is Tanya related to the man in the photograph? (I) Man in the photograph is the only son of Tanya's grandfather. (II) The man in the photograph has no brothers or sisters and his father is Tanya's grandfather.
How is Tanya related to the man in the photograph ? Statements : I. Man in the photograph is the only son of Tanya's grandfather. II. The man in the photograph has no brothers or sisters and his father is Tanya's grandfather.