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In a certain code language, 'A + B' means ‘A is the son of B’, 'A − B' means ‘A is the brother of B’, 'A × B' means ‘A is the wife of B’ and 'A ÷ B' means ‘A is the father of B’. How is S related to H if ‘S − D × F + G ÷ H’?
Wife's brother
Brother's wife's father
Brother's wife's brother
Wife's father
Brother's wife's brother
Work backwards from H to S or step-by-step through the expression: S - D (S is brother of D), D x F (D is wife of F, so F is D's husband), F + G (F is son of G), G / H (G is father of H, so G's children are F and H). Thus, H is F's brother/sister, making S the brother of F's wife D.
Work backwards from H to S or step-by-step through the expression: S - D (S is brother of D), D x F (D is wife of F, so F is D's husband), F + G (F is son of G), G / H (G is father of H, so G's children are F and H). Thus, H is F's brother/sister, making S the brother of F's wife D.
Decode individual relationships
Break down the expression 'S - D x F + G / H' using the given codes:
Establish family connections between G, F, H, D, and S
Since G is the father of F, and G is also the father of H, F and H are siblings. Since D is married to F, D is the wife of F (and thus D is the wife of H's brother). Since S is the brother of D, S is the brother of F's wife (D).
Determine relation of S with respect to H
From H's perspective:
A: Incorrect because S is not the brother of H's wife (H's brother F is married to D, so D is H's brother's wife, and S is her brother). B: Incorrect because S is the brother of the wife, not the father of the wife. D: Incorrect because S is a sibling (brother) to D, not a parent/father.
C is correct because S is the brother of D, who is the wife of F, and F is the brother of H; making S H's brother's wife's brother.
In coded blood relation questions, trace gender carefully at each operator and establish sibling pairs first (like F and H sharing parent G) to quickly identify multi-generational or same-generation ties.
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