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Placement | Reasoning | Blood Relationship

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While solving the questions on blood relationship, one should be familiar with basic concepts like various relations.

Mother's or Father's Brother - Uncle
Mother's or Father's Sister - Aunt
Mother's or Father's Father - Grand Father 
Mother's or Father's Mother - Grand Mother
Grand Father's or Grand Mother's Brother - Grand Uncle
Grand Father's or Grand Mother's Sister - Grand Aunt
Children's Children(Grand Son, Grand Daughter) - Grand Children
Uncle or Aunt's Son/Daughter - Cousin
Son's Wife - Daughter-in-law
Daughter Husband - Son-in-law
Sister's or Brother's Son - Nephew
Sister's or Brother's Daughter - Niece
Husband's or Wife's Brother or Sister's Husband - Brother-in-law
Husband's or Wife's Sister or Brother Wife - Sister-in-law

Important Terms:

Children of the same parent - Siblings
Paternal relatives - Father side relations
Maternal relatives - Mother side relations
One's husband/wife - Spouse

The easiest and non-confusing way to solve blood relationship problems would be to draw a family tree diagram and increase the levels in the generation wise as shown below-
Generation 1 : Grand Parents-Grand father, Grandmother, Granduncle, Grand aunt.
Generation 2 : Parents & in laws-Father, Mother, Uncle, Aunt, Father-in-law, Mother-in-law
Generation 3 : Siblings, spouse & in laws-Brother, Sister, Cousin, Wife, Husband, Brother-in-law, Sister-in-law.
Generation 4 : Children & in laws-Son, Daughter, Niece, Nephew, Son-in-law, Daughter-in-law
Generation 5 : Grand children-Grand son, Grand daughter.

Below Examples illustrate the process for solving this kind of problems:

Example 1:
Pointing to a man in the photograph a woman said, “He is the brother of the daughter of the wife of my husband” How is the man related to the woman?


My husband means woman’s husband, wife of my husband means again women itself, daughter of the wife of my husband means woman’s daughter and brother of the daughter means woman’s son. So, the woman is the mother of the man in the photograph.
Example 2:
Introducing Sanghoti to guests, Dinabandhu said, “Her father is the only son of my father”.How is Sanghoti related to Dinabandhu?
(a) Daughter
(b) Mother
(c) Sister
(d) Niece


Hence, Sanghoti is Dinabandhu’s daughter.
Answer: (a) Daughter.
Example 3:
A woman introduces a man as the son of the brother of her mother. How is a man related to the woman?
(a) Nephew
(b) Son
(c) Cousin
(d) Uncle


Hence, man is woman’s Cousin.
Answer: (c) Cousin.

Last Updated : 09 Aug, 2018
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