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Blood Relation Reasoning Questions

In this article we will discuss about Blood Relation Reasoning Questions, tricks, types of Blood Relation, Family Tree and more.

A blood relationship is defined as any relationship formed by birth or marriage. Ex: Any birth relation will be mother, father, son, daughter, etc., and any marriage relation will be father-in-law, mother-in-law, etc. Most competitive exams include a section on blood relations as part of the reasoning section. You must determine the relationship between specific family members depending on the information provided.

Meaning & Definition of Blood Relation in Verbal Reasoning:

Blood Relation

Blood relations refer to any relationship formed between two or more people as a result of their birth. It is classified as a relationship formed between two people as a result of their birth rather than their marriage or other factors.

This is a biological connection. Remember that while a wife and husband are biologically related, they are also biological parents of their own children.

In the same way, our blood relatives include our brother, sister, paternal grandfather, paternal grandmother, maternal grandfather, maternal grandmother, grandson, granddaughter, niece, cousin, and so on.

Types of Blood Relation in Verbal Reasoning

There are two categories of blood relatives:

  • Paternal blood relation

  • Maternal blood relation

Paternal blood relation

This type of blood relationship can be divided into three categories:

Father’s previous generations include great grandfather, great grandmother, grandfather, grandmother, and so on.

Father’s parallel generations include uncles (brothers), aunts (sisters), and so on.

Future generations of fathers, sons, daughters, grandsons, granddaughters

Maternal blood relation

This category of blood relations can be further divided into three categories:

Maternal great grandfather, maternal great grandmother, maternal grandfather, maternal grandmother, and other maternal generations

Maternal uncles, maternal aunts, and other relatives of the mother.

Sons, daughters, grandson’s, granddaughter’s, and other future generations of mothers

Family Tree

A tree has roots that are firmly planted, and then it has a stem that branches out and bears leaves.

The same can be said of a family tree, in which our forefathers and mothers serve as the roots, followed by their children and grandchildren, etc.

A family tree is a visual depiction of our ancestors. A family tree not only helps us better understand our lineage, but it also helps us to understand our relationships with other people who share common ancestors.

Type of Questions from CAT Blood Relations

The question types can be divided into the following categories based on previous years’ papers:

  1. Direct questions
  2. Questions based on puzzles
  3. Questions based on codes
  4. One-person blood relationship
  5. Relationship of mixed blood 

Puzzle Relation 

In this type of question, the candidate is required to evaluate the provided information, create a family chart, and then respond to the question.

Coded Relation 

In these types of questions, relationships are represented by specialised codes or representations such as +,-,*,$, percent, and so on. After that, the candidate must examine some provided codes in order to identify the relationship between a group of people or to demonstrate a given relationship in coded form.

Deciphering Jumbled up Descriptions

A roundabout explanation is given in the form of certain small relationships in this type of question, and you must evaluate the entire chain of relations and decipher direct relationship between the people involved.

A Short Note On Blood Relation Reasoning Questions

Blood relation questions with answers

Q-1. A man points to a photograph and says, “Such a lady in the picture is my nephew’s maternal grandmother”. What is the relationship between the lady in the photo and the man’s sister, who is the only sister the man has?

  1. Cousin
  2. Sister-in-law
  3. Mother
  4. Mother-in-law

Answer- Mother

Because the man is referring to his nephew, the nephew’s parents must be one of the man’s siblings. Now, the last section says that the man’s sister has no other sisters, so the man and his nephew’s mother have a brother-sister relationship. The woman in photo is mother of the man’s sister and the grandmother of his nephew.

Q-2. Raja pointed to a lady and said, “She is daughter of the woman who is the mother of the husband of my mother.” Who is the lady, Raja?

  1. Aunt
  2. Grand daughter
  3. Daughter
  4. Sister

Answer- Aunt

My father is the husband of my mother.

My Father’s mother is my Grandmother.

My Father’s sister is my Grandmother’s daughter.

My father’s sister is my aunt.

Q-3.” A man pointed to a woman and said, “His mother is your father’s only daughter.” What is the woman’s connection to that person?

  1. Daughter
  2. Sister
  3. Mother
  4. Wife


She is the only daughter of the woman’s father. As a result, the individual is the woman’s son, and the woman is the individual’s mother.

Q-4. Anil introduces Rohit as the only son of his father’s wife’s brother. What’s Rohit’s connection to Anil?

  1. Cousin
  2. Son
  3. Uncle
  4. Son-in-law

Answer- Cousin

My father’s wife is my mother, my mother’s brother is my maternal uncle, and my uncle’s son is my cousin, according to the breakdown of the relationship. As a result, Rohit is Anil’s cousin.

Blood Relations Questions Tricks

It is critical to improve speed and accuracy when answering blood relations questions on competitive exams. Here are some methods for determining the relationships mentioned in the question:

  • To represent a female member, use the ‘+’ symbol.
  • To represent a male member, use the ‘-‘ symbol.
  • To represent couples, use the symbol ‘=’.
  • To represent siblings, draw a single line.
  • To depict intergenerational relationships, use vertical lines.
  • Use ‘?’ for easier understanding if the statements don’t establish a relationship between the members.


Our daily lives are impacted by questions about blood relations. In the questions, the examiner identifies a simple relationship using a complex set of definitions, which candidates must quickly understand. You’ll need to have a decent knowledge of ‘blood relations’ to answer such questions.’ One of the most difficult topics in logical reasoning is blood relations. However, if studied properly and solved using a family tree, it becomes quite simple to solve.

The relationship between any two things or people is recognised as a relationship. If we talk about blood relations, we’re talking about a relation between two people that is based on blood or, more simply, birth.


Frequently asked questions

Get answers to the most common queries related to the CAT Examination Preparation.

What is Blood relation reasoning?

Ans. Blood relations play an important role in the reasoning section of most c...Read full

How do you answer blood relation questions?

Ans:  Think about your own situation. It is the most effective way to answer questions about blood relations...Read full

He is my sister's brother's father's only son," Anju explained, referring to a figure in the photograph. What is that individual's connection to Anju? Mother Father Maternal Uncle None of these

Ans. To name a few examples, my Sister’s brother is my Brother, my Broth...Read full

"I am the daughter of his grandfather's only son," Nalni says, pointing to Gopi. What is Nalni's relationship with Gopi? Niece Daughter Sister Cannot be determined


.Gopi's grandfather's only son has a daughter named Nalni. As a consequence, this is definite that Nalni is Gopi's sister. Sister Daughter-in-law Sister-in-law Cousin

Ans. Daughter-in-law Because E is...Read full