Jahnavi is the sister of Taruni. Taruni is married to Dilip. Dilip is the father of Raghu. Manoj is the son of Hema. Taruni is the mother-in-law of Hema. Dilip has only one son and no daughter. Jahnavi is married to Barun. Lekha is the daughter of Barun. How is Jahnavi’s sister related to Manoj’s paternal grandfather?
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Understanding Blood Relations for Exam Questions
Blood relation questions test your ability to understand and decipher the relationships between different members of a family. The key is to build a step-by-step family tree or diagram based on the information given.
Step-by-Step Analysis of the Relationships
Let's break down the given statements to establish the family connections:
- "Jahnavi is the sister of Taruni."
This tells us Taruni and Jahnavi are siblings, specifically sisters. - "Taruni is married to Dilip."
Taruni and Dilip form a couple. - "Dilip is the father of Raghu."
This means Raghu is the son of Dilip. Since Dilip is married to Taruni, Raghu is also the son of Taruni. - "Dilip has only one son and no daughter."
This confirms that Raghu is the only child of Dilip (and Taruni). - "Manoj is the son of Hema."
Hema is Manoj's mother. - "Taruni is the mother-in-law of Hema."
Taruni is the mother-in-law of Hema. A mother-in-law is the mother of one's spouse. Taruni is the mother of Raghu. This implies Hema is married to Raghu. - "Jahnavi is married to Barun."
Jahnavi and Barun form a couple. - "Lekha is the daughter of Barun."
Lekha is the daughter of Barun. Since Barun is married to Jahnavi, Lekha is also the daughter of Jahnavi.
Building the Family Structure
Based on the statements, we can map out the relationships:
- Generation 1: Taruni (married to Dilip), Jahnavi (married to Barun) - Sisters.
- Generation 2: Raghu (son of Dilip and Taruni), Hema (married to Raghu), Lekha (daughter of Barun and Jahnavi) - Cousins (Raghu/Hema's child and Lekha are cousins).
- Generation 3: Manoj (son of Raghu and Hema).
We can visualize this structure:
| Individual(s) | Relationship to others |
|---|---|
| Taruni & Jahnavi | Sisters |
| Taruni & Dilip | Married Couple |
| Raghu | Son of Taruni & Dilip (Only child) |
| Raghu & Hema | Married Couple |
| Manoj | Son of Raghu & Hema |
| Jahnavi & Barun | Married Couple |
| Lekha | Daughter of Jahnavi & Barun |
Identifying the Key Individuals for the Question
The question asks: "How is Jahnavi’s sister related to Manoj’s paternal grandfather?"
Let's identify these two individuals:
- Jahnavi's sister: From statement 1, Jahnavi's sister is Taruni.
- Manoj's paternal grandfather:
- Manoj's father is Raghu (from statement 5 and 6 - Manoj is son of Hema, Hema is married to Raghu, so Raghu is Manoj's father).
- A paternal grandfather is the father of one's father.
- So, Manoj's paternal grandfather is Raghu's father.
- From statement 3, Dilip is the father of Raghu.
- Therefore, Manoj's paternal grandfather is Dilip.
So the question simplifies to: "How is Taruni related to Dilip?"
Determining the Final Relationship
From statement 2, we know that "Taruni is married to Dilip".
Therefore, Taruni is the wife of Dilip.
Jahnavi's sister (Taruni) is related to Manoj's paternal grandfather (Dilip) as his wife.
Revision Table: Key Relationships
| Person A | Relation | Person B |
|---|---|---|
| Jahnavi | Sister of | Taruni |
| Taruni | Married to | Dilip |
| Dilip | Father of | Raghu |
| Raghu | Son of | Taruni & Dilip |
| Raghu | Married to | Hema |
| Manoj | Son of | Raghu & Hema |
| Dilip | Paternal Grandfather of | Manoj |
| Taruni | Wife of | Dilip |
Additional Information: Understanding Blood Relation Terms
- Sibling: A brother or sister.
- Spouse: A husband or wife.
- Paternal Grandfather: The father of one's father.
- Maternal Grandfather: The father of one's mother.
- Paternal Grandmother: The mother of one's father.
- Maternal Grandmother: The mother of one's mother.
- Mother-in-law: The mother of one's spouse.
- Father-in-law: The father of one's spouse.
- Son-in-law: The husband of one's daughter.
- Daughter-in-law: The wife of one's son.
- Brother-in-law: The brother of one's spouse, or the husband of one's sibling.
- Sister-in-law: The sister of one's spouse, or the wife of one's sibling.
Solving blood relation problems often involves constructing a family tree diagram to visualize the connections clearly. Always start with the most direct relationships and expand outwards.
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