A * B means 'A is the father of B'. A + B means 'A is the son of B'. A - B means 'A is the brother of B'. A & B means 'A is the sister of B'. If 'W * Q & R - S + T', then what is the relation of W to T?
Explanation:
W is father of Q. Q is sister of R. R is brother of S. S is son of T. Therefore, W is T's father, making W the grandfather of S and ancestor of T's child.
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