A % B means, ‘A is the son of B’. A # B means, 'A is the daughter of B'. A & B means, 'A is brother of B'. A @ B means, 'A is sister of B'. In W @ Q % R & S & T, what is the relation of W to T?
Explanation:
W @ Q → W sister of Q. Q % R → Q son of R. So R is parent of Q and W. R & S → R brother of S. S & T → S brother of T. So R, S, T are brothers. W is daughter of R, thus W is niece of T, i.e., brother's daughter.
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