A man pointing to a photograph says, ‘‘The lady in the photograph is my nephew’s maternal grandmother.’’ How is the lady in the photograph related to the man’s sister who has no other sister?

A man pointing to a photograph says, ‘‘The lady in the photograph is my nephew’s maternal grandmother.’’ How is the lady in the photograph related to the man’s sister who has no other sister? Correct Answer Mother

The family chart is as follows:

Drawing the family tree as per the given information:

As we can see the man has only one sister. And the lady in the photograph is related to her as Mother.                                                                              

Hence, the correct answer is "Mother".