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Question

Pointing to a photograph of a boy, Aditya said, “He is the only son of my mother-in-law’s only daughter.” How is the boy related to Aditya?

The correct answer is

Son

Analyzing the Blood Relation Puzzle

This question asks us to determine the relationship between a boy in a photograph and Aditya, based on Aditya's statement. Let's break down the statement step by step to understand the blood relation involved.

Step-by-Step Blood Relation Analysis

Aditya says, “He is the only son of my mother-in-law’s only daughter.”

  1. Start from the end of the relation given by Aditya: "my mother-in-law".
  2. Aditya's mother-in-law is the mother of Aditya's wife.
  3. Next part: "my mother-in-law’s only daughter". Aditya's mother-in-law has an only daughter. Since Aditya's mother-in-law is his wife's mother, her only daughter must be Aditya's wife herself.
  4. Now, consider the beginning of the statement: "He is the only son of...". The "only son" is of "my mother-in-law's only daughter", which we found is Aditya's wife.
  5. So, the boy in the photograph is the only son of Aditya's wife.
  6. The only son of a wife is her husband's son. Therefore, the boy is Aditya's son.

By carefully following the chain of relations described by Aditya, we conclude that the boy in the photograph is Aditya's son.

Evaluating the Options for Aditya's Relation to the Boy

Let's look at the given options and see which one matches our conclusion:

  • Nephew: A nephew is the son of one's sibling (brother or sister). This does not fit our conclusion.
  • Brother-in-law: A brother-in-law is the brother of one's spouse or the husband of one's sibling. This does not fit our conclusion.
  • Son: A son is a male offspring. Our analysis shows the boy is the only son of Aditya's wife, making him Aditya's son. This fits our conclusion.
  • Father-in-law: A father-in-law is the father of one's spouse. This describes a relation *to* Aditya, not the relation *of the boy to* Aditya, and it doesn't match the description anyway.

Based on the step-by-step breakdown of Aditya's statement, the boy in the photograph is Aditya's son.

Revision Table: Common Blood Relations

Relation Described Meaning
Mother's or Father's son Brother
Mother's or Father's daughter Sister
Mother's brother Maternal Uncle
Father's brother Paternal Uncle
Mother's sister Maternal Aunt
Father's sister Paternal Aunt
Son's wife Daughter-in-law
Daughter's husband Son-in-law
Spouse's mother Mother-in-law
Spouse's father Father-in-law

Additional Information on Solving Blood Relation Problems

Blood relation questions test your ability to understand familial relationships from given information. They often involve multiple steps in the relation chain.

Tips for solving these puzzles:

  • Start from the perspective of the speaker (Aditya in this case) and break down the statement piece by piece.
  • Work backwards from the end of the relation or forwards from the speaker, depending on the statement structure.
  • Identify the core relationships (e.g., mother-in-law, daughter) and translate them into direct family members (e.g., wife's mother, wife).
  • For complex relations, you can sometimes draw a simple family tree diagram to visualize the connections.
  • Pay close attention to words like "only," which restrict the possibilities (like "only daughter").
  • Once you determine the relationship, check it against the options provided.
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Important Questions from General Blood Relation Problems

  1. A man said to a lady, "your mother's husband's sister is my Aunt". How is lady related to the man?

  2. Sadhana introduces Ramu as “The son of the brother of her father’s wife”. How is Ramu related to Sadhana?

  3. Preeti is Harish's only daughter. Lakhan is Birendra's only son. Lakhan's sister Neeti is married to Manas. Preeti has only one brother, Manas. How is Manas related to Birendra?

  4. Introducing Asha to guests, Bhaskar said, "her father is the only son of my father". How is Asha related to Bhaskar?

  5. A is father of B. B is sister of C. C is sister of D. D is the son of E. How many women are there?

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