Explanation:
The father of X's father is X's grandfather. The granddaughter of X's grandfather is X's sister (or cousin). Y is the husband of X's sister. Therefore, Y is the brother-in-law of X.
‘A ÷ B’ means ‘A is the father of B’. 'A * B' means 'A is brother of B'. 'A + B' means 'A is the mother of B'. ‘A – B’ means ‘A is sister of B’. If P + Q + R – S ÷ T * U, then how is T related to Q?
Explanation:
P + Q → P mother of Q. Q + R → Q mother of R. R – S → R sister of S, so S brother. S ÷ T → S father of T. So Q is mother of S, S is father of T, hence T is grandson of Q.
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