A small popular restaurant at an interstate truck stop provides priority service to truckers.The restaurant has ten tables where customers may be seated.The service time averages 40 minutes once a party is seated.The customer arrival rate is 12 parties per hour,with the parties being equally divided between truckers and non-truckers.
-On average,how many parties of non-truckers are waiting to be seated?
A)0 27
B)0 52
C)0 88
D)1 36
E)1 75

Question

A small popular restaurant at an interstate truck stop provides priority service to truckers.The restaurant has ten tables where customers may be seated.The service time averages 40 minutes once a party is seated.The customer arrival rate is 12 parties per hour,with the parties being equally divided between truckers and non-truckers.
-On average,how many parties of non-truckers are waiting to be seated?
A)0 27 
B)0 52 
C)0 88 
D)1 36 
E)1 75

Quizplus · Accepted Answer

The average number of parties waiting to be seated is equal to the arrival rate multiplied by the average waiting time. The average waiting time is equal to the service time divided by the capacity. In this case, the arrival rate is 12 parties per hour, the service time is 40 minutes, and the capacity is 10 tables. Therefore, the average number of parties waiting to be seated is 12 * 40 / 60 / 10 = 0.8. Since the number of parties waiting to be seated cannot be a fraction, the answer is 1.

A Small Popular Restaurant at an Interstate Truck Stop Provides