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In a certain code language, 'A + B' means 'A is the mother of B', 'A - B' means 'A is the son of B', 'A ├Ч B' means 'A is the husband of B', and 'A ├╖ B' means 'A is the brother of B'. How is A related to X if 'X - Y ├Ч Z + A ├╖ B'?
Father's father
Son
Brother
Father
Son
Break the expression into individual relations (A+B=mother, A-B=son, A*B=husband, A/B=brother) and trace the path starting from X to A.
Break the expression into individual relations (A+B=mother, A-B=son, A*B=husband, A/B=brother) and trace the path starting from X to A.
Analyze the expression
Given expression: X - Y x Z + A ├╖ B. Breakdown: 1) X - Y: X is son of Y. 2) Y x Z: Y is husband of Z. (So X is son of Z). 3) Z + A: Z is mother of A. 4) A ├╖ B: A is brother of B.
Mapping relationships
If X is son of Y, and Y is husband of Z, then X is son of Z. If Z is mother of A, then X and A are siblings. Since A is brother of B, A and X are children of Z and Y.
Determine relation
A is the brother of X (or sister, though A is established as brother in the final term 'A ├╖ B'). Thus, A is related to X as brother.
A: Father's father is the grandfather of X, which is incorrect. B: Son is incorrect as X is the son of Y, not A. D: Father is incorrect as Y is the father of X, not A.
C is correct because the breakdown shows that X and A share the same parents (Y and Z), making A the brother of X.
In blood relation questions with operators, always determine the gender of the individuals to quickly eliminate opposite-gender options.
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