The inequality can be written as
[tex]598\ge15.75m[/tex]So, the water can continue to overflow till m minutes.
[tex]\begin{gathered} 598\ge15.75m \\ \text{Divide both sides by 15.75} \\ 37.96\ge m \\ 38\ge m \end{gathered}[/tex]We approximated the 37.96 minutes to 38 minutes.
So, near to 38 minutes the water can flow.