Question

If $R$ is a relation from a set $A$ to the set $B$ and $S$ is a relation from $B$ to $C$, then the relation $SoR$

• A. is from $C$ to $A$
• B. is from $A$ to $C$
• C. does not exist
• D. does not these

Answer 1

Answer: (B)

Given, $R\subseteq A\times B$ and $S\subseteq B\times C$, we have $SoR\subseteq A\times C$
$\therefore SoR$ is a relation from $A$ to $C$.