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Question

Introducing Rukmani, Vijay said, “She is my wife’s only brother’s son’s mother.” How is Rukmani’s husband related to Vijay?

The correct answer is

Brother-in-law

Solving Blood Relation Puzzles

Blood relation questions require you to carefully trace the relationship between individuals based on the statements given. Let's break down the statement provided by Vijay to determine how Rukmani's husband is related to him.

Analyzing Vijay's Statement Step-by-Step

Vijay says, “She is my wife’s only brother’s son’s mother.” Let's analyze this statement piece by piece, starting from Vijay's perspective:

  • "my wife's only brother": This refers to Vijay's brother-in-law. Since he is the 'only' brother, this relationship is specific.
  • "my wife's only brother's son": This refers to the son of Vijay's brother-in-law. The son of your brother-in-law is your nephew. So, this is Vijay's nephew.
  • "my wife's only brother's son's mother": This refers to the mother of Vijay's nephew (the son of his brother-in-law). Who is the mother of a child? It's the wife of the child's father. The child's father is Vijay's brother-in-law. Therefore, the mother of this child is the wife of Vijay's brother-in-law.

So, according to Vijay's statement, Rukmani is the wife of his brother-in-law.

Determining the Relation of Rukmani's Husband

We established that Rukmani is the wife of Vijay's brother-in-law. The question asks how Rukmani's husband is related to Vijay.

  • Rukmani's husband is the person whose wife is Rukmani.
  • We know Rukmani is the wife of Vijay's brother-in-law.
  • Therefore, Rukmani's husband is Vijay's brother-in-law.

Comparing with the Options

Based on our analysis, Rukmani's husband is Vijay's brother-in-law. Let's look at the options provided:

  1. Brother-in-law
  2. Son
  3. Father
  4. Father-in-law

Our conclusion matches option 1.

Step-by-Step Derivation:

  1. Vijay's wife's only brother = Vijay's Brother-in-law.
  2. Vijay's wife's only brother's son = Son of Vijay's Brother-in-law = Vijay's Nephew.
  3. Vijay's wife's only brother's son's mother = Mother of Vijay's Nephew.
  4. The mother of a nephew is the wife of the nephew's father. The nephew's father is Vijay's Brother-in-law.
  5. So, Rukmani is the wife of Vijay's Brother-in-law.
  6. Rukmani's husband is the person whose wife is Rukmani.
  7. Therefore, Rukmani's husband is Vijay's Brother-in-law.

Revision Table: Common Blood Relations

Relation Description
Father's father Grandfather
Mother's mother Grandmother
Father's son Brother or Self
Father's daughter Sister or Self
Mother's son Brother or Self
Mother's daughter Sister or Self
Son's wife Daughter-in-law
Daughter's husband Son-in-law
Brother's son Nephew
Brother's daughter Niece
Sister's son Nephew
Sister's daughter Niece
Uncle or Aunt's son/daughter Cousin
Spouse's brother Brother-in-law
Spouse's sister Sister-in-law
Brother's wife Sister-in-law
Sister's husband Brother-in-law
Father's brother Uncle
Father's sister Aunt
Mother's brother Uncle
Mother's sister Aunt

Additional Information on Blood Relation Puzzles

Blood relation puzzles test your ability to interpret complex statements about family connections. It's helpful to visualize or draw a family tree as you decode the relationships step by step, usually working backward from the end of the statement to the beginning relative to the speaker. Pay close attention to words like "only" as they restrict possibilities. Practice with various types of relation descriptions to improve speed and accuracy in solving these logical reasoning questions.

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Important Questions from General Blood Relation Problems

  1. Pointing to a girl in a college poster, Deepika said, "She is my mother-in-law's only son’s niece". How is that girl's mother related to Deepika?

  2. Pointing to the photograph of a girl, Raghav said, "She is my father's mother's daughter's only brother's daughter". How is Raghav's father related to that girl's mother?

  3. Pointing towards a woman, Reena said, “She is the only daughter of my father-in-law.” How is the woman related to Reena?

  4. Pointing towards Sumit, Anuj said, “He is my mother’s father’s son’s brother’s son”. If Vinita who is married to Kartik, is the mother of Anuj, then how is Vinita related to Sumit?

  5. Introducing Reshma to a guest, a lady, Karishma, said, “She is the daughter of my father-in-law’s daughter”. How is Reshma related to Karishma?

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