(Solved):During the two hours of the morning rush from 8 a.m. to 10 a.m., 100 customers per hour arrive at…

 

Question

During the two hours of the morning rush from 8 a.m. to 10 a.m., 100 customers per hour arrive at the coffee shop. The coffee shop has a capacity of 80 customers per hour.

a. How long does the customer arriving at 10 a.m. have to wait to be served?

b. On average, how long does a customer arriving during the morning rush wait to be served?

 

EXPERT ANSWER

Let’s answer both of

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