Difficulty: Easy
Correct Answer: Father-in-law
Explanation:
Reasoning
“Grandson of my mother” can be Amit's son (the simplest and most common interpretation in such problems).The girl is the wife of that grandson ⇒ she is Amit's son's wife ⇒ Amit is her father-in-law.
Note
Other interpretations (e.g., nephew's wife) are possible in general, but standard test logic assumes the grandson is the speaker's son.
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