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$A + B$ means A is the son of B.

$A - B$ means A is the daughter of B.

$A\times B$ means A is the father of B.

$A\div B$ means A is the mother of B.

Which of the following means S is the son-in-law of P?

A) $P+Q\div R\times S-T$

B) $P\times Q\div R-S+T$

C) $P+Q\times R-S\div T$

D) $P\times Q-R\div S\times T$

Option B

$P+Q\div R\times S-T$ means P is the son of Q.Q is the mother of R,R is the father of S and S is the daughter of T.Hence S is the nephew of P.

$P\times Q\div R-S+T$ means P is the father of Q ,Q is the mother of R,R is the daughter of S and S is the son of t.Hence S is the son-in-law of P.

$P+Q\times R-S\div T$ means P is the son of Q,Q is the father of R,R is the daughter of S and S is the mother of T.Hence S is the mother of P.

$P\times Q-R\div S\times T$ means P is the father of Q ,Q is the daughter of R,R is the mother of S and S is the father of T.Hence S is the son of P.

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