Pointing to a woman, Abhijit said, “Her granddaughter is the only daughter of my brother.” How is the woman related to Abhijit?

The correct answer is: Aunt.

Abhijit’s brother has a daughter. This daughter is the woman’s granddaughter. This means that the woman is the mother of Abhijit’s brother. This makes her Abhijit’s aunt.

The other options are incorrect because:

• Option B is incorrect because the woman is not Abhijit’s grandmother. Abhijit’s grandmother is the mother of his mother or father.
• Option C is incorrect because the woman is not Abhijit’s mother-in-law. Abhijit’s mother-in-law is the mother of his wife.
• Option D is incorrect because the woman is not Abhijit’s mother. Abhijit’s mother is the woman who gave birth to him.