Six jobs are to be processed through a? two-step operation. Thefirst operation involves? sanding, and the second involvespainting. Processing times are as? follows:
Job Operation 1 (hours) Operation 2 (hours)
A 4 8
B 10 5
C 3 11
D 14 14
E 6 1
F 7 12
A) Using? Johnson's rule for? 2-machine scheduling, thesequence? is:
b) For the schedule developed using? Johnson's rule, the totallength of time taken to complete the six jobs? (including the 2nd?operation) =
