# 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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