Study Material for Reasoning : Blood Relation


Husband of MotherFather
Wife of FatherMother
Father or Mother’s Son Brother
Father or Mother’s Daughter Sister
Father or Mother’s Brother Uncle
Father or Mother’s Sister Aunt
Father or Mother’s Father Grandfather
Father of Father or Mother Grandfather
Father of Grandfather or Grandmother Great Grandfather
Mother of Father or Mother Grandmother
Father or Mother’s Mother Grandmother
Mother of Grandfather or Grandmother Great Grandmother
Husband’s or Wife’s Sister Sister-in-law
Son’s Wife Daughter-in-law
Brother’s or Sister’s Son Nephew
Brother’s Daughter Niece
Aunt’s or Uncle’s Son or Daughter Cousin
Sister’s Husband Brother-in-Law
Brother’s Wife Sister-in-law
Grandfather’s or Grandmother’s Son Father or Uncle
Uncle’s Wife Aunt
Daughter’s Husband Son-in-Law

Step: 1 Questions may be asked in Deduction Method or Pictorial Method.
Step: 2 Try to draw diagram, for given relationships which help you to understand clear relationship.
Blood RelationsStep: 3 Identify the relationships, but not with names because there are certain names common for both genders.

Lets see some examples
Question: 1
Pointing to men, Sai said that, “His only brother is the father of my daughter’s father. How is the men related to Sai??
A)     Grandfather          B) Uncle                  C) Father              D) Brother-in-Law
Answer: Uncle
My daughter’s father = me (sai)
Father of my daughter’s father = sai’s father
Only brother of sai’s father= Uncle

Question: 2
Introducing a man, a woman said that, his wife is the only daughter of my father”. How is this women related to men?
A)     Husband         B) Brother                C) Father-in-Law              D) Brother-in-Law
 Answer: Husband
Only daughter of my father= me or that women
Then that men is the Husband of that women

Question: 3
Pointing to the women in the photograph, bhavya said, she is the sister of the father of my mother’s son. Then who is the women to bhavya?
A) Sister         B) Aunt               C) Sister-in-Law              D) Mother
Answer: Aunt  
My mother’s son= bhavya’s brother
Father of bhavya’s brother = bhavya’s Father
Sister of bhavya’s Father = Aunt

Question: 4
Pointing towards a boy, a man said that he is the only son of the only son of the husband of the Mother-in-law of my wife. How is the boy related to the man?
B)     Husband         B) Son              C) Father-in-Law              D) Brother-in-Law
Answer: Son
Mother-in-law of my wife = mother of that man= man’s mother
Husband of the man’s mother = man’s father
Only son of man’s father = that person only
only son of that person = his son