Questions on Blood Relations focus on testing the ability of a student to identify different family relationships. It is very important that one has a clear understanding of various terms used to describe family relationships. The test-taker is expected to work out a relationship between people from the information given in the question.

Typical terms used in Blood Relations

The relations can be classified in the following way:

Classification according to generation

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Additionally, all relatives on one’s father’s side are paternal relatives and all relatives on one’s mother’s side are maternal relatives.

Typical blood relations questions

1.The relationship between two people is given through a roundabout route, relating them to other people. One has to go through a series of relationships between the two people in the question. The relationships can just be as a simple statement or as a statement made by another person.

2.Certain codes are used to describe different relationships and then a “statement” is given relating people using these codes. On the basis of the interpretation of the codes, the relationship between the people should be established.

Sample Questions

Example 1) Pointing to a lady, a man said, “His father is the only son of my mother”. How is the lady related to the man?

1. Mother
2. Father
3. Daughter
4. aunt

Solution- (c) Daughter

The lady is the daughter of the man as he is the only son of his mother. Hence, the lady is the man’s daughter.

Example 2) Introducing a photo, Anita said, “He is the son of the daughter of the father of my father.” How is the boy related to Anita?

1. Nephew
2. Brother
3. Uncle
4. Son-in-law

Solution- (b) Brother

The father of Anita’s father is her grandfather, who is the grandfather of the boy too. Hence, he is Anita’s brother.

Example 3) If Vimal says, “Savi’s mother is the only daughter of my mother”, how is Vimal related to Ravi?

Solution- Only daughter of my mother = Vimal Sister

Vimal sister is Savi’s Mother

So Vimal is the maternal uncle of Savi

Example 4) Pointing to a gentleman, Satya said, “His only brother is the father of my son’s father.” How is the gentleman related to Satya ?.

Solution- Father of my son’s father -> Satya’s Father in law

Satya’s Father-in-law brother -> Satya’s Uncle

Hence the gentleman is Satya’s uncle

Example 5)  A woman pointing to a photograph says, “The lady in the photograph is my nephew’s maternal grandmother.” How is the lady in the photograph related to the woman’s sister who has no other sister?

Solution- Woman’s Nephew maternal grandmother will be the woman’s mother.

Example 6) If P + Q means P is the mother of Q; P – Q means P is the brother Q; P % Q means P is the father of Q and P x Q means P is the sister of Q, what shows that A is the maternal uncle of B?

Solution- A – M + N x B

P – M → P is the brother of M

M + N → M is the mother of N

N x Q → N is the sister of Q

Therefore, P is the maternal uncle of Q.

Example 7) If W is the brother of X; X is the sister of Y, and Y is the father of Z, how Z is related to W?

Solution- If Z is Male, the answer is Nephew.

If Z is Female, the answer is Niece.

As the sex of Z is not known, hence, the relation between Z and W cannot be determined.

Example 8) Introducing a boy, a girl said, “He is the son of the daughter of the father of my uncle.” How is the boy related to the girl?

Solution- The father of the boy’s uncle → the grandfather of the boy and daughter of the grandfather → sister of father. Therefore the boy is brother to the girl.

Example 9) Pointing to a photograph Bata says, “He is the son of the only son of my grandfather.” How is the man in the photograph related to Bata?

Solution- The man in the photograph is the son of the only son of Bata’s grandfather i.e., the man is the son of Bata’s father. Hence, the man is the brother of Bata.

Example 10) Pointing to a photograph. Vinay said, “He is the son of the only daughter of the father of my brother.” How Vinay is related to the man in the photograph?

Solution- The man in the photo is the son of the sister of Vinay. Hence, Vinay is the maternal uncle of the man in the photograph.

Example 11) Pointing to Varun, Mani said, “I am the only son of one of the sons of his father.” How is Varun related to Mani?

Solution- Mani is the only son of one of the sons of Varun’s father → Either Varun is the father or uncle of Mani.

For more solved examples visit Blood Relation MCQs | Solved Examples

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