A man said, "This girl is the daughter of my father's only son's wife." How is the girl related to him?

Question

A man said, "This girl is the daughter of my father's only son's wife." How is the girl related to him?

1. A. Sister
2. B. Niece
3. C. Daughter (Correct answer)
4. D. Mother

Correct Answer

Option C — C

Detailed Solution & Explanation

The correct answer is Option C.

Key Points

• Work inward: 'my father's only son' — the speaker is his father's only son, so this is the man himself.
• Then 'my father's only son's wife' is the man's own wife.
• The girl is 'the daughter of ... his wife' — i.e. the man's daughter.
• So the girl is his daughter.

Exam Tip

• in relation puzzles, resolve the innermost phrase first ('father's only son' = the speaker), then substitute outward step by step.

Additional Information

• Unpack these relations from the innermost phrase outwards: "my father's only son" must be the speaker himself, since an only son has no brother.
• So "my father's only son's wife" is the speaker's wife, and her daughter is the speaker's daughter.
• The word only is the load-bearing element; without it the phrase could refer to a brother, which is exactly the distractor these questions rely on.