There are four critical paths in a network. A-B-C-D-E, A-F-E, A-B-H-J-K-E and A-S-T-E. Each activity in...

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Civil Engineering

There are four critical paths in a network. A-B-C-D-E, A-F-E,A-B-H-J-K-E and A-S-T-E. Each activity in this network can becrashed by a maximum of 2 weeks. The crashing cost (per week), forthe first week, for activity A is: $540, E is $545 and all otheractivities is : $135 (per week per activity). The crashing cost,second week and onwards, for activity A is $1080 per week, E is$1350 per week and for all other activities is $405 per activityper week. You have a maximum crashing budget of $2300. The maximumpossible reduction in the project duration will be:
Select one:
a. 3 weeks
b. 4 weeks
c. 5 weeks
d. 1 week
e. 2 weeks

Answer & Explanation Solved by verified expert

4.5 Ratings (710 Votes)

Trick is we can crash only one activity per path per week here We crash that event first which has low crashing cost For first week Casea We crash only A since A is common for all paths So the crashing cost would be 540 Caseb We crash only E since E is common for all See Answer

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