At a local fast-food joint,cars arrive randomly at a rate of 12 every 30 minutes.The fast food joint takes an average of 2 minutes to serve each arrival.The utilization factor for this system is
A)0.467.
B)0.547.
C)0.800.
D)0.133.
E)None of the above

Question

Quizplus · Accepted Answer

The utilization factor is calculated as the arrival rate divided by the service rate. The arrival rate is 12 cars per 30 minutes, or 0.4 cars per minute. The service rate is 1 car per 2 minutes, or 0.5 cars per minute. Utilization factor = 0.4 / 0.5 = 0.8.

At a Local Fast-Food Joint,cars Arrive Randomly at a Rate