(a)
Let Tj be the start time for an activity j
Min Duration
s.t.
TB - TA >= 5
TD - TB >= 8
TC - TB >= 8
TE - TB >= 8
TF - TE >= 4
TG - TF >= 6
TG - TC >= 10
TD + 5 <= Duration
TG + 3 <= Duration
Tj >= 0
(b)
Let Cj be the days crash for an activity-j
Min Z = total crash cost = 30 CA + 15 CB + 20 CC + 40 CD + 20 CE + 30 CF + 40 CG
Subject to,
TB - TA + CA >= 5
TD - TB + CB >= 8
TC - TB + CB >= 8
TE - TB + CB >= 8
TF - TE + CE >= 4
TG - TF + CF >= 6
TG - TC + CC >= 10
CA <= 2, CB <= 3, CC <= 1, CD <= 2, CE <= 2, CF <= 3, CG <= 1
TD + 5 - CD <= 20
TG + 3 - CG <= 20
Tj, Cj >= 0
Q4. CPM Consider the following list of activities and predecessors. Activity ProcessorsDuration (...
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