URGENT TIMER PLEASE HELP

A bottling machine has a theoretical capacity of 100 bottles per minute. During every eight hour shift it operates continuously but is shut down once for 30 minutes for cleaning, inspection, and lubrication. While it is running it averages 15% downtime over the course of the remaining time of the shift. What is its rated capacity per shift? \begin{tabular}{c} 48,000 bottles \\ \hline 38,250 bottles \\ \hline 37,800 bottles \\ \hline 40,800 bottles \end{tabular}