A is the brother of B. B is the brother of C. | vedclass

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Question

(D) From the given statements:$1$. $A$ is the brother of $B$,so $A$ is male.$2$. $B$ is the brother of $C$,so $B$ is male.$3$. $D$ is the father of $A

Vedclass · Accepted Answer

$C$ is the brother of $A$.

Vedclass · Answer

(D) From the given statements:$1$. $A$ is the brother of $B$,so $A$ is male.$2$. $B$ is the brother of $C$,so $B$ is male.$3$. $D$ is the father of $A$. Since $A, B,$ and $C$ are siblings,$D$ is also the father of $B$ and $C$.$4$. We know $A$ and $B$ are male,but the gender of $C$ is not specified. $C$ could be either a brother or a sister of $A$ and $B$.$5$. Therefore,the statement '$C$ is the brother of $A$' cannot be definitely true because $C$ might be a sister.

$A$ is the brother of $B$. $B$ is the brother of $C$. $D$ is the father of $A$. Based on these three statements,which of the following statements cannot be definitely true?

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