The mаnаgers оf AwesOMe Fооds аre trying to increase foot traffic through new offerings. Recently, they started to offer Peking Duck slices on Saturday afternoons from a subcontractor. Mr. Poka and Mr. Yoke bring their ducks and set up a process with two different stations apart from each other. At the first station, customers place their orders (i.e., how many slices they want) and pay, which takes exactly 2 minutes (this is done by Mr. Poka). Then they wait in line for Mr. Yoke to slice, package, and provide sauces, which takes exactly 5 minutes. Then customers collect their ducks and leave (which is instantaneous). Mr. Poka and Mr. Yoke both arrive at 1 pm. Mr. Poka stops taking orders at 4 pm because he needs to pick up his kids from the daycare. Mr. Yoke continues slicing until 8:30 pm. Customers in Fairfax LOVE Peking Duck and demand is always very large. Assume continuous rates. What is the average time (in hours) a customer spends waiting for their duck?