Four employees at a fast-food restaurant each perform one of the four activities in serving a customer greet customer take order process order and deliver order. The processing time for each activity is given as follows Activity Greet customer Take order Process order Deliver order Processing time per Customer 2 seconds 30 seconds 60 seconds 5 seconds Assume demand is unlimited What is the average labor utilization? Mugo Choice son 04 102 Multiple Choice O 50% O 40% O 162% 68%