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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 T related to W if 'T ├╖ U x V + W - X'?
Brother
Father
Father's father
Father's brother
Brother
Break down the expression by symbols: T son of U, U mother of V, V sister of W, W husband of X. This traces T as a brother of W.
Break down the expression by symbols: T son of U, U mother of V, V sister of W, W husband of X. This traces T as a brother of W.
Analyze the expression segments
T ├╖ U: T is the son of U. U x V: U is the mother of V. V + W: V is the sister of W. W - X: W is the husband of X.
Establish the relationships
Since T is son of U, and U is mother of V and W, then T, V, and W are siblings. W is male (husband of X), and since T is a sibling of W, T is the brother of W.
B: Father is incorrect as T is in the same generation as W. C: Father's father is incorrect because it skips two generations. D: Father's brother is incorrect as that would be T's uncle.
A is correct because the sequence of relations (T son of U, U mother of V/W) confirms that T is a male child of U and therefore the brother of W.
In blood relation questions, always draw the tree with gender markers (e.g., + for male, - for female) to avoid confusion about sibling status.
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