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In a certain code language, 'A + B means ‘A is the son of B’, 'A − B means ‘A is the brother of B’, 'A × B means ‘A is the wife of B’ and 'A ÷ B means ‘A is the father of B’. How is S related to H if ‘S + D × F ÷ G − H’?
Brother
Son
Father
Husband
Brother
Break the expression into segments: S+D (S is son of D), D×F (D is wife of F), F÷G (F is father of G), G-H (G is brother of H). Use the family tree to link the generations.
Break the expression into segments: S+D (S is son of D), D×F (D is wife of F), F÷G (F is father of G), G-H (G is brother of H). Use the family tree to link the generations.
Deconstruct expression
S + D means S is the son of D. D × F means D is the wife of F. F ÷ G means F is the father of G. G - H means G is the brother of H.
Determine relationships
Since F is the father of G and D is the mother of S, and D is the wife of F, S, G, and H (who is G's brother) are all siblings sharing the same parents (F and D).
Conclude
As S, G, and H are siblings, and S is a son (from the first operation), S is the brother of H.
B) Son: Incorrect, S is a sibling of H, not H's child. C) Father: Incorrect, S is of the same generation as H. D) Husband: Incorrect, they are siblings, not spouses.
A is correct because S, G, and H are all children of the same parents F and D, making S the brother of H.
In blood relation expressions, always draw the tree from top to bottom (Generations) and group siblings horizontally to avoid confusion.
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