Operation management: Reducing project time
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Consider this network and the time and cost data shown below. The least costly way (assuming a linear time cost relationship) to reduce project time by one day is to reduce time be one day for activity:
Normal Crash
Activity Time Cost Time Cost
1-2 6 100 5 200
1-4 15 200 12 600
2-3 5 100 4 190
3-4 5 150 3 370
5-3 6 80 5 185
5-4 8 300 7 360
a) 1-2
b) 1-4
c) 2-3
d) Any of the above
I believe the answer is either B or D not sure.
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Solution Summary
This solution discusses reducing project time.
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Normal Crash Cost of reduction
Activity Time Cost Time Cost per day
1-2 6 100 5 200 =(200-100)/(6-5)=100
1-4 15 200 ...
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