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Question

Niraj is the father of Rinku. Jiya and Tiya are the daughters of Ruby, who is the only sister of Rinku. Vishnu is the son of Rinku and Gita. How is Niraj related to Tiya?

This question was previously asked in
SSC CGL 2020 (Tier-2) Statistics Previous Year Paper 3 (28-Jan-2022)
The correct answer is

Maternal grandfather

Understanding the Blood Relation Puzzle

This question asks us to determine the relationship between two individuals, Niraj and Tiya, based on a series of given blood relations. To solve this type of problem, it is helpful to build a simple family tree or diagram tracing the connections.

Step-by-Step Analysis of Relationships

Let's break down the information provided:

  • "Niraj is the father of Rinku." This means Niraj belongs to an older generation than Rinku.
  • "Jiya and Tiya are the daughters of Ruby." This places Jiya and Tiya in a younger generation compared to Ruby. They are sisters.
  • "Ruby, who is the only sister of Rinku." This is a key connection. Ruby and Rinku are siblings. Since Ruby is the *only* sister of Rinku, Rinku must be male. Also, Niraj, being the father of Rinku, is also the father of Ruby.
  • "Vishnu is the son of Rinku and Gita." This confirms Rinku is a parent in the generation above Vishnu. This information about Vishnu and Gita is not directly needed to find the relationship between Niraj and Tiya, but it reinforces the family structure.

Constructing the Family Tree

Based on the relationships, we can map out the family structure:

  • Niraj is the father of Rinku and Ruby.
  • Rinku and Ruby are siblings (Rinku is male, Ruby is female).
  • Tiya is the daughter of Ruby.

Let's trace the lineage from Niraj to Tiya:

Niraj → Ruby → Tiya

This shows that Tiya is the daughter of Ruby, and Ruby is the daughter of Niraj.

Determining the Relation Between Niraj and Tiya

Tiya's mother is Ruby. Ruby is Niraj's daughter.

Therefore, Niraj is the father of Tiya's mother.

The father of one's mother is called the maternal grandfather.

Hence, Niraj is the maternal grandfather of Tiya.

Verification with Options

Let's check the options against our conclusion:

  • Paternal grandfather: This would be the father of one's father. Niraj is the father of Tiya's mother (Ruby), not Tiya's father. Incorrect.
  • Maternal grandfather: This is the father of one's mother. Niraj is the father of Ruby, who is Tiya's mother. Correct.
  • Maternal uncle: This would be the brother of one's mother. Niraj is Ruby's father, not her brother. Incorrect.
  • Paternal uncle: This would be the brother of one's father. Niraj is Ruby's father, and Ruby is Tiya's mother. Rinku is Tiya's maternal uncle (brother of her mother), and Niraj is Rinku's father. Incorrect.

Our analysis confirms that Niraj is the maternal grandfather of Tiya.

Revision Table: Key Relationships

Relationship Individuals
Father-Daughter Niraj → Ruby
Father-Son Niraj → Rinku
Siblings Rinku ↔ Ruby
Mother-Daughter Ruby → Tiya
Mother-Daughter Ruby → Jiya
Father-Son Rinku → Vishnu
Spouses Rinku ↔ Gita

Additional Information: Understanding Grandparents

In blood relation questions, understanding the terms for relatives on the mother's side versus the father's side is crucial. Grandparents are from the generation before your parents.

  • Paternal Grandfather: Your father's father.
  • Paternal Grandmother: Your father's mother.
  • Maternal Grandfather: Your mother's father.
  • Maternal Grandmother: Your mother's mother.

In this problem, Niraj is the father of Tiya's mother (Ruby), which fits the definition of a maternal grandfather.

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Similar Questions

  1. Pointing to the photograph of Sanchi, Nitin said, “Her mother’s father’s son’s wife is my mother-in-law’s only daughter”.

    How is Nitin related to Sanchi’s mother?
  2. Pointing to the photograph of a girl Akanksha, Rajeev said, “Her daughter’s father’s wife’s mother is my wife’s daughter’s mother’s mother-in-law.” How is Rajeev related to Akanksha?

  3. Arsh is Shivam’s father and Dhruv is the son of Bimla. Eshwar is the father of Arsh. If Shivam is the brother of Dhruv, how is Bhimla related to Eshwar?

  4. Bharat and Sapna are husband and wife. Rohit and Bharat are brothers. Suresh is the father of Rohit. Sapna’s son is Krish. How is Krish related to Suresh?

  5. P is the sister of Q and mother of R. S is the daughter-in-law of W and Wife of Q. W’s grandson M is the nephew of P and brother of V. W has only two children. How is Q related to v?

  6. Poonam told Akshay that "Yesterday she defeated Akshay's only sister's daughter Sneha in a school Taekwondo competition." How is Akshay related to Sneha?

  7. A + B means ‘A is the father of B’;

    A – B means ‘A is the sister of B’;

    A × B means ‘A is the brother of B’;

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Important Questions from General Blood Relation Problems

  1. 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?

  2. Introducing a lady, Varun said, “The son of her only brother is the brother of my wife”. How is the lady related to ‘Varun?

  3. Gopi said to Vivek, "That person is the father of the only brother of my mother."

    What would Gopi call him?

  4. A is the son of C, but C is not the mother of A. B is A’s sister. C and D are a married couple. E is the mother of C. Who is A’s mother?

  5. Vijay is the father of Sanjay’s mother. Sanjay is the son of Vijay’s only son-in-law. How is Vijay’s Son-in-law related to Sanjay?

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