Question: Problem 1 The production manager must determine the optimal processing sequence for six jobs through two machines (M1 and M2). The same sequence will be

Problem 1

The production manager must determine the optimal processing sequence for six jobs through two machines (M1 and M2). The same sequence will be allowed in both departments. The managers goal is to minimize the total completion time.

Processing Time (hrs)

JOB

M1

M2

A

B

C

D

E

F

5

8

3

4

1

3

4

3

2

1

2

4

  1. Determine the optimal sequence using Johnsons Rule. (1 point)
  2. Draw a Gantt chart with this optimal sequence and find total completion time and total idle time. (3 points)
  3. Find the flow times of all the jobs on Machine 1 and Machine 2 using the optimal sequence. (1 point)

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