An I.T$.$ team repairs computers that break down at an average of $=2\mathrm{.}5$ per hour $($approximately Poisson in nature$).$ The team can service an average of $2$ computers every $30$ minutes with a repair time distribution that approximates an exponential distribution. The department is open $10$ hours per day. The team$$s approximate cost $$125$ per hour. The cost associated with lost productivity from the breakdown is estimated at $$55$ per hour $($or any fraction thereof$).$