Six jobs are to be processed through a two-step operation. The first operation involves sanding, and the second involves painting. Processing times are as follows:
|
Job
|
Operation 1 (hours)
|
Operation 2 (hours)
|
|
A
|
10
|
5
|
|
B
|
7
|
4
|
|
C
|
5
|
7
|
|
D
|
3
|
8
|
|
E
|
2
|
6
|
|
F
|
4
|
3
|
Determine a sequence that will minimize the total completion time for these jobs. Illustrate graphically.