Q. Sharp Discounts Wholesale Club has two service desks with one server at each desk. There is one desk at each entrance of the store. Consumers arrive at each service desk at an average of one every six minutes following a Poisson distribution. The average service time at each service desk is 216 seconds per consumer following the exponential service distribution.

a) Explain how many consumers, on average, are waiting in line in front of each service desk?