Answer :
The volume of liquid (V1) in first container at any time 't' is given as,
[tex]V_1=-25t+1250[/tex]The volume of liquid (V2) in other container at any time 't' is given as,
[tex]V_2=50t+250[/tex]Consider the equation,
[tex]\begin{gathered} -25+1250=50t+250 \\ V_1=V_2 \end{gathered}[/tex]Thus, the given equation represents the situation when the volume in both the containers are equal.