Pointing at Rahul, Benkat said, “He is the only son of my father's only son". How is Benkat related to Rahul?
Father
Solving the Blood Relation Puzzle: Benkat and Rahul
This question asks us to determine the relationship between Benkat and Rahul based on Benkat's statement. These types of questions require careful step-by-step analysis of the given information to build a relationship tree or diagram.
Breaking Down Benkat's Statement
Benkat says, "He is the only son of my father's only son". The key to solving this is to break down the statement from the end, starting with "my father's only son".
- "My father": This refers to Benkat's father.
- "My father's only son": Since Benkat is speaking, "my father's only son" refers to Benkat himself. This is because Benkat's father has only one son, and that son is Benkat. (We assume Benkat is male based on typical naming conventions and the structure of the puzzle, though the solution holds even if we consider the lineage).
Now, substitute this part back into the original statement:
- The statement becomes: "He is the only son of [Benkat]".
The pronoun "He" in the statement refers to Rahul. So, the statement is essentially saying:
- "Rahul is the only son of Benkat".
Determining the Relationship
Based on our analysis, Rahul is the only son of Benkat. This directly tells us how Benkat is related to Rahul.
If Rahul is the son of Benkat, then Benkat is the father of Rahul.
Checking the Options
Let's evaluate the given options based on our conclusion:
- Father: This matches our conclusion that Benkat is the father of Rahul.
- Grandfather: This would mean Rahul is the child of Benkat's child, which is not the case.
- Brother: This would mean Benkat and Rahul share the same parents, which is not indicated by the statement.
- Cousin: This would mean their parents are siblings, which is also not indicated.
Therefore, the only option that correctly represents the relationship derived from the statement is 'Father'.
Final Answer Derivation
The statement "He is the only son of my father's only son" means Rahul is the only son of Benkat's father's only son. Benkat's father's only son is Benkat himself. So, Rahul is the only son of Benkat. This makes Benkat the father of Rahul.
| Part of Statement | Meaning |
|---|---|
| My father | Benkat's father |
| My father's only son | Benkat |
| He is the only son of my father's only son | Rahul is the only son of Benkat |
Thus, Benkat is the father of Rahul.
Revision Table: Understanding Blood Relations
| Relationship | Description | Example (from Benkat's perspective) |
|---|---|---|
| Father | Male parent | Benkat's Father |
| Mother | Female parent | Benkat's Mother |
| Son | Male child | Rahul (as derived) |
| Daughter | Female child | Benkat's Daughter (if any) |
| Brother | Male sibling | Benkat's Brother (if any) |
| Sister | Female sibling | Benkat's Sister (if any) |
| Grandfather | Parent's father | Benkat's Father's Father |
| Grandmother | Parent's mother | Benkat's Father's Mother |
| Uncle | Parent's brother | Benkat's Father's Brother |
| Aunt | Parent's sister or Uncle's wife | Benkat's Father's Sister |
Additional Information on Solving Blood Relation Questions
Blood relation questions are common in reasoning sections of competitive exams. Here are some tips to solve them effectively:
- Identify the Speaker: Always note who is speaking and using terms like "my".
- Break Down the Statement: Start from the end of the statement (usually the part with "my") and work backwards.
- Use Diagrams: Drawing a family tree can be very helpful. Represent males with squares and females with circles, using lines to show relationships (vertical for parent-child, horizontal for siblings, double horizontal for spouses).
- Consider "Only": Words like "only" are crucial. "Only son" or "only daughter" significantly limit possibilities.
- Practice: The more you practice, the better you become at quickly interpreting these statements.
Understanding these fundamental relationships and practicing statement breakdown is key to mastering blood relation puzzles.
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