P is the brother of Q and R. S is R's mother. | vedclass

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(D) Given that $P$ is the brother of $Q$ and $R$,they are siblings.$S$ is the mother of $R$,which implies $S$ is the mother of $P$,$Q$,and $R$.$T$ is

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$Q$ is $T$'s son.

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(D) Given that $P$ is the brother of $Q$ and $R$,they are siblings.$S$ is the mother of $R$,which implies $S$ is the mother of $P$,$Q$,and $R$.$T$ is the father of $P$,which implies $T$ is the father of $P$,$Q$,and $R$.Since $P, Q,$ and $R$ are siblings,$T$ is the father of $Q$ and $S$ is the mother of $P$. Thus,options $A, B,$ and $C$ are definitely true.However,the gender of $Q$ is not specified in the problem statement. Therefore,we cannot determine if $Q$ is a son or a daughter of $T$. Hence,the statement '$Q$ is $T$'s son' cannot be definitely true.

$P$ is the brother of $Q$ and $R$. $S$ is $R$'s mother. $T$ is $P$'s father. Which of the following statements cannot be definitely true?

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