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In a certain code language, 'A + B' means 'A is the sister of B', 'A - B' means 'A is the husband of B', 'A x B' means 'A is the mother of B', and 'A ├╖ B' means 'A is the son of B'. How is Z related to C if 'X - Y x Z + A x B ├╖ C'?
Wife's sister
Mother
Daughter
Wife's mother
Wife's sister
Break down the expression into small relations: X-Y (husband), YxZ (mother), Z+A (sister), AxB (mother), B├╖C (son). Trace the lineage from X down to C.
Break down the expression into small relations: X-Y (husband), YxZ (mother), Z+A (sister), AxB (mother), B├╖C (son). Trace the lineage from X down to C.
Analyze the expression
Break 'X - Y x Z + A x B ├╖ C' into parts: 1) X - Y (X is husband of Y), 2) Y x Z (Y is mother of Z), 3) Z + A (Z is sister of A), 4) A x B (A is mother of B), 5) B ├╖ C (B is son of C is not quite right here, looking at 'A ├╖ B' means 'A is son of B', so B ├╖ C means 'B is son of C').
Mapping the relationships
If Y is mother of Z, A, and B (as Z+A implies Z/A are sisters, and AxB implies A is mother of B, and B├╖C implies C is the father of B (married to A)), then Z is the sibling of A. Since A is the mother of B, Z is the sister of B's mother.
Determine relation
Z is the sister of A, and A is the mother of B. C is the father of B. Therefore, Z is the maternal aunt (Mother's sister) of B.
B: Incorrect, Z is the aunt, not the mother. C: Incorrect, Z is the aunt, not the daughter. D: Incorrect, Z is the maternal aunt, not the wife's mother.
A is correct because based on the family tree constructed from the code, Z is the sister of A, and A is the mother of B; therefore, Z is the mother's sister to B.
In such long chain relations, always draw the family tree starting from the first parent couple to avoid confusion regarding generational levels.
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