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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 S related to W if 'R - S x T + U - V x W'?
Mother
Sister
Mother's mother
Father's mother
Father's mother
Break down the expression into segments: R-S (R is husband of S), S x T (S is mother of T), T + U (T is sister of U), U-V (U is husband of V), V x W (V is mother of W). S is the mother of T, U, and mother-in-law of V.
Break down the expression into segments: R-S (R is husband of S), S x T (S is mother of T), T + U (T is sister of U), U-V (U is husband of V), V x W (V is mother of W). S is the mother of T, U, and mother-in-law of V.
Break down the expression
R-S means R is husband of S. S x T means S is mother of T. T+U means T is sister of U. U-V means U is husband of V. V x W means V is mother of W.
Establish generational ties
S is the mother of T and U. U is married to V. Since V is the mother of W, and U is the father of W, S (the mother of U) is the paternal grandmother of W.
Conclusion
In common kinship terms used in these exams, the parent's mother is the grandmother. Since the options provided are 'Mother', 'Sister', 'Mother's mother', and 'Father's mother', 'Father's mother' is the correct relation.
A: Incorrect, S is a grandmother, not the mother. B: Incorrect, S is in an older generation. C: Incorrect, S is the paternal grandmother, not maternal.
D is correct because S is the mother of U, and U is the father of W, making S the Father's mother of W.
Always assign gender (Male + / Female -) to each person while solving blood relations to avoid common errors.
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