JAMIA 2024 — Reasoning PYQ
JAMIA | Reasoning | 2024A and B are brothers. C and D are sisters. A’s son is D’s brother. How is B related to C?
Choose the correct answer:
- A.
Father
- B.
Brother
- C.
Uncle
(Correct Answer) - D.
Grandfather
Uncle
Explanation
Analysis
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Relation between A and B:
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A and B are brothers (Both are Male).
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A (Male)⟷B (Male)
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Relation between C and D:
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C and D are sisters (Both are Female).
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C (Female)⟷D (Female)
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Connecting the Families:
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"A’s son is D’s brother."
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If A's son is D's brother, then D is the daughter of A.
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Since C and D are sisters, C is also the daughter of A.
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Final Connection (B to C):
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A is the father of C.
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B is the brother of A.
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Therefore, the father's brother is the Uncle.
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Mathematical Representation
Let G1 be the first generation and G2 be the second generation.
Siblings in G1:{A,B} where Gender(A,B)=Male
Siblings in G2:{C,D,Son} where Gender(C,D)=Female
The relationship link is:
Father(C)=A
Brother(A)=B
Applying the logic:
Brother of Father=Uncle
∴BRelationC=Uncle
Answer: B is the Uncle of C.

