The company is considering consolidating its two service desks into one location, staffed by two clerks. The clerks would continue to work at the same individual speed of four minutes per customer. However, assume the arrival rate is now one every three minute (combined from two separate desks) a. what would the average length of the waiting line (need to use exhibit 5.12). b. what is the probability of waiting in line? c. what would be the average time that a person must spend at the service desk (waiting plus service)? d. should the company consolidate the service desks? why?