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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 % B means 'A is the sister of B', and A & B means 'A is the husband of B'. Based on the above, how is R related to M if 'R # T @ S & M'?
Mother
Daughter-in-law
Mother-in-law
Sister
Mother-in-law
Break the expression into individual pairs: (R#T), (T@S), and (S&M). Construct the family tree from left to right to determine the relationship flow.
Break the expression into individual pairs: (R#T), (T@S), and (S&M). Construct the family tree from left to right to determine the relationship flow.
Analyze R # T
Given A # B means A is the mother of B. Therefore, R # T implies R is the mother of T.
Analyze T @ S
Given A @ B means A is the son of B. Therefore, T @ S implies T is the son of S.
Analyze S & M
Given A & B means A is the husband of B. Therefore, S & M implies S is the husband of M.
Combine Relationships
Since R is the mother of T and T is the son of S, it means S is the father of T. Since S is the husband of M, M must be the wife of S. Consequently, R (mother of T) is the mother-in-law of M.
A: Mother is incorrect as R is the mother of T, not M. B: Daughter-in-law is incorrect because M is the daughter-in-law of R, not the other way around. D: Sister is incorrect as there is a clear generational gap between R and M.
C is correct because R is the mother of T, and since S is the father of T and husband of M, R stands as the mother-in-law of M.
In coded blood relations, always determine the gender of the individuals first. Often, identifying if the target is male or female eliminates half the options instantly.