Question

introducing women a man said her fathers only son is my father how is the man related to the women​

Answer 1

the women is the man's paternal aunt (bua)

Answer 2

Man is the father of that woman.

We can solve the blood relation question by mapping the each relation which is mentioned in the question. To solve such types of question we should always start form the end of a question. In the question it is mentioned that her father is the only son means her father has no male siblings. And only son of my father means, son and speaker can be either brother or sister. Here speaker and son both are male so he must be his father only.