2. A campus deli serves 310 customers over its busy lunch period from 11:30 a.m. to 1:30 p.m. A quick count of the number of customers waiting in line and being served by the sandwich makers shows that an average of 12 customers are in process at any point in time. What is the average number of minutes that a customer spends in process?

Do not round your intermediate and round your final answer to the nearest integer.