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In a certain code language, A + B means ‘A is the sister of B’ A # B means ‘A is the brother of B’ A × B means ‘A is the wife of B’ A @ B means ‘A is the father of B’ Based on the above, how is E related to M if ‘E # F × H @ G + M’?
Mother’s brother
Mother’s father
Brother
Father
Mother’s brother
Use the gender-based elimination: E is the brother (#) of F, and since F is the wife (x) of H, H is the brother-in-law of E. H is the father (@) of G, and G is the sister (+) of M, meaning M is the child of H and F.
Use the gender-based elimination: E is the brother (#) of F, and since F is the wife (x) of H, H is the brother-in-law of E. H is the father (@) of G, and G is the sister (+) of M, meaning M is the child of H and F.
Analyze the expression segments
E # F means E is the brother of F. F x H means F is the wife of H. H @ G means H is the father of G. G + M means G is the sister of M.
Determine relationships
Since F is the wife of H and F is the mother of G and M, then H is the father of G and M. Thus, F and H are the parents of M. E is the brother of F (the mother).
Final Conclusion
Because E is the brother of M's mother (F), E is the maternal uncle of M, commonly referred to as Mother's brother.
B: Mother's father is incorrect because E is of the same generation as the mother F. C: Brother is incorrect because E is the brother of the mother, not M herself. D: Father is incorrect because H is the father of M.
A is correct because E is the brother of F, and F is the mother of M, making E the mother's brother (maternal uncle) of M.
In coded blood relations, always determine the gender of the subject first to eliminate opposite-gender options, then focus on the generation gap to find the exact relation.
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