Consider the following sets of tasks to complete the assembly of an engineering component: The expected production rate is 3000 units per shift of 8 hour duration. The minimal number workstations that are needed to achieve this production level are:
|
Task
|
Time (in seconds)
|
Precedence
|
|
a
|
10
|
-
|
|
b
|
20
|
-
|
|
c
|
15
|
a
|
|
d
|
5
|
b
|
|
e
|
30
|
c
|
|
f
|
15
|
e
|
|
G
|
5
|
d
|
(a) 4 (b) 8 (c) 10 (d) 11