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In a certain code language, 'A + B' means 'A is the mother of B', 'A - B' means 'A is the brother of B', 'A x B' means 'A is the wife of B' and 'A ├╖ B' means 'A is the father of B'. How is M related to T if 'M + N x P - S ├╖ T'?
Father's sister's daughter
Father's brother's wife's mother
Father's brother's wife
Father's brother's wife's sister
Father's brother's wife's mother
Decode the expression from left to right step by step, replacing each symbol with its family relationship until you reach the final person.
Decode the expression from left to right step by step, replacing each symbol with its family relationship until you reach the final person.
Step 1: Decode M + N
According to the given code, '+' means 'mother'. Therefore, 'M + N' means M is the mother of N.
Step 2: Decode N x P
'x' means 'wife'. Therefore, 'N x P' means N is the wife of P. This implies P is the husband of N, and M is the mother-in-law of P.
Step 3: Decode P - S
'-' means 'brother'. Therefore, 'P - S' means P is the brother of S. Since N is married to P, S is the brother of N's husband (i.e., brother-in-law to N).
Step 4: Decode S / T and Final Relation
'/' means 'father'. Therefore, 'S / T' means S is the father of T. Tracing back from T: T's father is S, S's brother is P, P's wife is N, and N's mother is M. Thus, M is the mother of P and S, making M the grandmother (father's brother's wife's mother) of T.
A: Father's sister's daughter does not match the derived maternal lineage. C: Father's brother's wife is N herself, not M. D: Father's brother's wife's sister is incorrect as M is the mother, not sister.
B is correct because tracing the blood relations step-by-step from M to T gives 'Father's brother's wife's mother', making M the mother of S and P, and grandmother of T.
Always break down coded blood relations expressions from left to right and draw a quick family tree keeping gender symbols clear (squares for males, circles for females).
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