$02.(1$ pt$)$

Consider a single queue where each of six available servers processes client demands randomly at an average rate of $4\mathrm{.}18$ per hour $($the service times are exponentially distributed$).$ Client demands randomly arrive in Poisson fashion at the queue on average every $8$ minutes. What is the average time $($in minutes$)$ that an arriving client demand will spend in the system? Round your $$nal answer to two decimal places