You are responsible for an operation that has 12 distinct jobs. Seven of those jobs must be processed in two operations: D and E. All seven jobs must go through D and E in that sequence, i.e., D first and then E. Determine the optimal order in which the jobs should be sequenced through the process using the following times:
Job Process D Time Process E Time
1 9 6
2 8 5
3 7 7
4 6 3
5 1 2
6 2 6
7 4 7