Reasoning & Mental Ability : Blood relations

By Asha Gupta|Updated : March 30th, 2022

BLOOD RELATION: Problems on Blood Relation involve analysis of certain blood relations. In these types of problem, you should give proper attention to find out the correct relation.

Some of the blood relations which is generally used in the question are given below in the tabular form: 

                                                                                                                                                                                                               

BLOOD RELATION: Problems on Blood Relation involve analysis of certain blood relations. In these types of problem, you should give proper attention to find out the correct relation.

Some of the blood relations which is generally used in the question are given below in the tabular form: 

 

Mother’s or father’s son

Brother

Mother’s or father’s daughter

Sister

Father’s brother

Uncle

Father’s sister

Aunt

Father’s Father

Grandfather

Father’s mother

Grandmother

Mother’s brother

Maternal Uncle

Mother’s Sister

Maternal Aunt

Son’s wife

Daughter in law 

Daughter’s Husband

Son-in-law 

Husband’s or wife’s brother

Brother-in-law 

Husband’s or wife’s sister

Sister-in-law 

Brother’s son

Nephew

Brother’s daughter

Niece

Sister’s husband

Brother in law 

Brother’s wife

Sister in law Great Grand Daughter

Grandson’s daughter

Great Grand Daughter 

Granddaughter’s daughter

Great Grand Daughter 

Mother’s father

Maternal Grand Father

Mother’s Mother

Maternal Grand Mother

 Note:

  • If in a question if is not mention about paternal or maternal. By default, we consider the paternal type.
  • We cannot determine the gender of a person by name.
  • Male are represented by (square) or + (plus) sign and female are represented by (cycle) or 0 (minus) sign.

GENERATION TREE:

Example 1.

Pointing to a lady in the photograph, Shalu said, “Her son’s father is the son–in–law of my mother.” How is Shalu related to the lady?

Solution: Lady’s son’s father is the lady’s husband. So, the lady’s husband is the son–in–law of Shalu mother, i.e. the lady is the daughter of Shalu mother. Thus, Shalu is the lady’s sister.

Example 2.

A is the father of C and D is the son B. E is the brother of A. If C sister of D, how is B related to E?

Solution: For these types of question, we can use a generation tree.

So, B is a sister in the law of E.

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Posted by:

Asha GuptaAsha GuptaMember since Mar 2021
Associate Content Developer - AE/JE Non-technical
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