'D' is the son of 'F'. 'E' is the sister of 'F', and her son is 'A' and daughter is 'X'. If 'B' is the maternal uncle of 'A'; So how is 'D' related to 'B'? A. Cousin B. Nephew C. Maternal Uncle D. Brother
B
Let's break down the given relationships step by step to determine how 'D' is related to 'B'.
Understanding the Given Blood Relations
We are provided with several pieces of information connecting different individuals:
- 'D' is the son of 'F'. This tells us the gender of D (male) and establishes a parent-child link. We can write this as: \( F \rightarrow D \) (D is son).
- 'E' is the sister of 'F'. This means E and F are siblings. We can write this as: \( E \leftrightarrow F \) (E is sister of F). This implies F is the sibling of E (either brother or sister).
- 'E's son is 'A'. This tells us the gender of A (male) and a parent-child link from E. We can write this as: \( E \rightarrow A \) (A is son).
- 'E's daughter is 'X'. This tells us the gender of X (female) and another parent-child link from E. We can write this as: \( E \rightarrow X \) (X is daughter).
- 'B' is the maternal uncle of 'A'. A's mother is E. A's maternal uncle is the brother of A's mother (E). Therefore, B is the brother of E. This tells us the gender of B (male) and establishes a sibling link with E. We can write this as: \( B \leftrightarrow E \) (B is brother of E).
Connecting the Family Members
From the relationships, we can establish the connections among B, E, and F, and then extend to D and A/X:
- We know 'B' is the brother of 'E'.
- We know 'E' is the sister of 'F'.
Combining these two points, B, E, and F are siblings. Since B is E's brother and E is F's sister, B must also be a sibling of F. B is male.
So, B, E, and F are siblings. B is a brother. E is a sister. F can be either a brother or a sister based on the information so far.
Now consider the next generation:
- 'D' is the son of 'F'. So D is in the generation below F.
- 'A' and 'X' are the children of 'E'. So A and X are in the generation below E.
Determining the Relationship between D and B
We need to find the relationship between 'D' and 'B'.
We know:
- 'D' is the son of 'F'.
- 'F' is a sibling of 'B' (either brother or sister).
If F is B's brother or sister, then F's child is B's nephew (if male) or niece (if female).
The problem states that 'D' is the son of 'F', meaning D is male.
Therefore, 'D', being the son of B's sibling 'F', is B's nephew.
Family Structure Overview
We can represent the family relationships like this:
| Generation | Individuals | Relationship to B, E, F |
|---|---|---|
| Older Generation | B, E, F | Siblings (B is brother, E is sister) |
| Younger Generation | D | Son of F |
| Younger Generation | A, X | Children of E (A is son, X is daughter) |
Since D is the son of F, and F is a sibling of B, D is the nephew of B.
Checking the Options
Let's look at the given options:
- A. Cousin: A cousin is the child of one's aunt or uncle. D is the child of B's sibling, so this is incorrect.
- B. Nephew: A nephew is the son of one's brother or sister. D is the son of F, and F is B's sibling. D is male. This fits the definition of a nephew.
- C. Maternal Uncle: A maternal uncle is the brother of one's mother. B is D's parent's sibling. D's parent is F. B is F's sibling, not D's maternal uncle.
- D. Brother: A brother is a male sibling of the same generation. D is in the generation below B. This is incorrect.
Based on the analysis, 'D' is the nephew of 'B'.
Conclusion
By carefully tracing the relationships provided, we determined that B, E, and F are siblings, with B being male. D is the son of F. Therefore, D is the son of B's sibling, making D the nephew of B.
Revision Table: Key Relationships
| Individuals | Relationship |
|---|---|
| D <- F | D is son of F |
| E <-> F | E is sister of F |
| A <- E | A is son of E |
| X <- E | X is daughter of E |
| B <-> E | B is brother of E (since B is A's maternal uncle) |
Combining E <-> F and B <-> E means B, E, F are siblings. Since D is son of F, D is nephew of B.
Additional Information on Blood Relations
Solving blood relation questions requires careful construction of a family tree or diagram based on the given information. Key terms and their meanings are crucial:
- Parent: Mother or father.
- Child: Son or daughter.
- Sibling: Brother or sister.
- Uncle: Brother of one's parent.
- Aunt: Sister of one's parent.
- Maternal Uncle/Aunt: Brother/Sister of one's mother.
- Paternal Uncle/Aunt: Brother/Sister of one's father.
- Nephew: Son of one's brother or sister.
- Niece: Daughter of one's brother or sister.
- Cousin: Child of one's uncle or aunt.
- Grandparent: Parent of one's parent.
- Grandchild: Child of one's child.
Always identify the gender of individuals when specified (e.g., son, daughter, brother, sister, uncle, aunt). Use symbols or diagrams to keep track of relationships across generations and between individuals.
Important Questions from Blood Relations
Introducing a girl, the boy says, "She is the daughter of my uncle's father's son". How is the girl related to the boy.
A. Niece
B. Daughter-in-law
C. Sister
D. Aunt
Pointing to a girl, Sunil said, "Her mother's brother is the only son of my mother's father and the brother has only one sister". How is the girl's mother related to Sunil?
A. Maternal Aunt
B. Sister
C. Mother
D. Grandmother
In a certain code language,
‘A + B’ means ‘A is the mother of B’,
‘A − B’ means ‘A is the daughter of B’,
‘A × B’ means ‘A is the husband of B’,
‘A ÷ B’ means ‘A is the sister of B’.
Based on the above, how is M related to Q if ‘M ÷ N − O × P + Q’?In a certain code language,
A + B means 'A is the son of B',
A - B means 'A is the wife of B',
A × B means 'A is the brother of B' and
A ÷ B means 'A is the daughter of B'.
Based on the above, how is P related to R if 'P × S + M – T + R'?
In a certain code language,
'A ? B' means 'A is the mother of B',
'A ! B' means 'A is the wife of B',
'A & B' means 'A is the brother of B' and
'A × B' means 'A is the father of B'.
Which of the following means that Z is the wife's father's mother of L?
