A-B means 'A is the sister of B';
A × B means 'A is the husband of B';
A + B means 'A is the son of B';
If, Y x M - T - Z ÷ L x U, then how is Y related to U?
If P $ Q means P is the brother of Q; P # Q means P is the mother of Q; P * Q means P is the daughter of Q. If the expression is A # B $ C * D, who is the father?
Explanation:
A # B means A is the mother of B. B $ C means B is the brother of C, so A is also the mother of C. C * D means C is the daughter of D. Since A is already the mother of C, D must be the father of C (and B).
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