The table below contains information on five work orders. Each order is processed in two machines, first in machine A and then in machine B. Working Processing time in Processing time in order machine A (hours) machine B (hours) 1 8 5 2 6 11 3 7 13 4 11 4 5 10 9 Use an appropriate method to minimize the total lead time for orders 1-5 through the two machines. How long will the minimum total lead time be?