The time required to complete each of eight jobs in a two-man machine flow shop are shown in the table that follows. Each job must follow the same sequence, beginning with machine A and moving to machine B.
Job Machine A Machine B
a 15 8
b 2 11
c 6 7
d 14 9
e 3 5
f 11 4
g 18 15
h 23 14
a. determine a sequence that will minimize makespan time
b. find machine B's idlae time hrs
c. for the sequence determined in part a, how much would machine B's idle time be reduced by splitting the last two jobs in half?
new idle time hrs savings of hours