Introducing a man to her husband, a woman said, "His brother's father is the only son of my grandfather." How is the woman related to this man?

A. Mother

B. Aunt

C. Sister

D. uncle

E. Nephew

Answer: Option C

Solution(By Examveda Team)

Only son of woman's grandfather---Woman's father; Man's brother's sister---Man's father.
So, man's father is woman's father i.e. woman is the man's sister.