work cell at Chris Ellis Commercial Laundry has a workstation with two​ machines, and each unit produced at the station needs to be processed by both of the machines.​ (The same unit cannot be worked on by both machines​ simultaneously.) Each machine has a production capacity of 5 units per hour. The throughput time of the work cell=nothing minutes per unit ​(enter your response as a whole​ number).
What is the process time of the work cell in minutes per unit?