Rahul attended a competition, wherein his mother's paternal grandfather's only son's only granddaughter was fighting against the clock. How is the person in the competition related to Rahul?
Sister
Understanding the Blood Relation Puzzle
To solve this blood relation question, we need to carefully trace the relationship described from Rahul's perspective. The person in the competition is described as "Rahul's mother's paternal grandfather's only son's only granddaughter."
Step-by-Step Relation Analysis
Let's break down the description:
- Rahul's mother: This is the starting point relative to Rahul. Let's call her M.
- Mother's paternal grandfather: M's paternal grandfather is M's father's father. This person is Rahul's maternal great-grandfather. Let's call him GG.
- Mother's paternal grandfather's only son: The only son of GG. Since GG is M's father's father, GG's son would be M's father or M's father's brother. The phrase "only son" of GG means that GG had only one son. That only son is M's father. M's father is Rahul's maternal grandfather. Let's call him MG.
- Maternal grandfather's only granddaughter: This refers to the only granddaughter of MG (Rahul's maternal grandfather).
Now, let's think about who the granddaughters of Rahul's maternal grandfather (MG) could be:
- The daughters of MG's children.
- MG's children include Rahul's mother (M) and possibly her siblings (Rahul's maternal uncles and aunts).
- The granddaughters of MG would be the daughters of M (Rahul's sisters) or the daughters of M's siblings (Rahul's maternal cousins).
The description states this person is the "only granddaughter" of MG. This implies that among all the children of MG (Rahul's mother and her siblings, if any), there is only one female grandchild.
Given the options provided, "Sister" is the most plausible relationship. For Rahul's sister to be the "only granddaughter" of his maternal grandfather, it would mean Rahul's mother has one daughter (who is Rahul's sister) and no other female grandchildren are born to Rahul's maternal grandfather's lineage (i.e., Rahul's maternal aunts/uncles have no daughters).
Tracing back:
| Relationship Fragment | Identified Person (relative to Rahul) |
|---|---|
| Rahul's mother | Mother |
| Mother's paternal grandfather | Maternal Great-Grandfather |
| Mother's paternal grandfather's only son | Maternal Grandfather |
| Maternal Grandfather's only granddaughter | Rahul's Sister (under the assumption of "only granddaughter" in a typical puzzle) |
Based on this step-by-step analysis and considering the options, the person who is the only granddaughter of Rahul's maternal grandfather is Rahul's sister.
Conclusion: The Relation to Rahul
The intricate description leads us to conclude that the person competing against the clock is Rahul's sister. The phrase "only granddaughter" specifically points to a single female grandchild from the maternal grandfather's lineage, which aligns with the sister relationship in the context of the options provided.
Revision Table: Common Blood Relations
| Relation Term | Meaning |
|---|---|
| Paternal | Related through the father's side of the family. |
| Maternal | Related through the mother's side of the family. |
| Grandfather | Parent's father. |
| Grandmother | Parent's mother. |
| Great-Grandparent | Grandparent's parent. |
| Sibling | A person's brother or sister. |
| Cousin | The child of one's aunt or uncle. |
Additional Information: Solving Blood Relation Questions
Blood relation questions are common in reasoning sections of competitive exams. To tackle them effectively:
- Read the sentence carefully, pausing at commas or connecting words like 'of'.
- Break down the complex sentence into smaller, manageable relationship segments.
- Mentally (or physically) trace the relationships backward or forward from the reference person.
- Use diagrams or symbols to represent family members and their connections if the relationship is very complex.
- Pay close attention to limiting words like "only", "none", "sole", as they are key to narrowing down possibilities.
- Relate each step back to the original person (Rahul, in this case) to maintain clarity.
Consistent practice with different types of blood relation puzzles will help you quickly identify the required connection.
Similar Questions
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Important Questions from General Blood Relation Problems
A man said to a lady, "your mother's husband's sister is my Aunt". How is lady related to the man?
Pointing towards a boy, Ranjita said, “He is my husband's father-in-law's only daughter's son's father's only sister's son”. How is that boy's mother related to Ranjita's husband?
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Pointing towards a woman in a photograph, Vipin said, “She is the daughter of my son’s wife”. How is the woman related to Vipin?
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?
