Question

Introducing a boy, a girl said, "He is the son of the daughter of the father of my uncle." How is the boy related to the girl?​

Answer 1

Explanation:

He seems to be either her brother or her cousin.

• “Mother of my uncle” will probably be her grandmother. Well, depending on how simple the family tree is – sometimes there is a stepmother or stepfather somewhere.

• But at least the uncle’s mother is the mother of both the uncle and the boy’s mother. So the boy’s mother is the uncle’s sister or half-sister.

• Her uncle’s sister will either be her aunt or her mother.

So, the boy is either her cousin or her brother.

Answer 2

Answer:

BROTHER

The father of the boy's uncle → the grandfather of the boy and daughter of the grandfather → sister of father.