A company that assembles cell phones has to install an electronic card in 6 cell phones. Of According to the customer's priorities, the assembly line supervisor knows that cell phones 1, 2 and 3 must be processed in that same order. However, cell 2 cannot be processed before cell 2 cell 5 due to an environmental policy, while cell 4 must be processed before cell 5 and 6 due to a quality policy. What would be the best sequence, the maximum delay and the average? Processing times and delivery dates (times) are shown in the following table.