b) To reduce the duration of the project to 10 weeks at the least? cost, the fol
ID: 431374 • Letter: B
Question
b) To reduce the duration of the project to 10 weeks at the least? cost, the following is the order of what needs to be followed while crashing the? activities:The first activity to crash is ___ by 2 weeks at a per week crashing cost of ____ dollars.
?Next, one should crash activity (answer from above) and activity ____ by 2 weeks weeks for an additional total per week crashing cost of ____ dollars.
?c) New requirements are to reduce the project to 7 weeks. Continuing to crash the activities from 10 weeks based on the above crashing already? completed, the following is the order for? crashing:
Next activity to crash in order is ___ by 2 weeks weeks at a per week crashing cost of ____ dollars.
?Next, one should crash activity ___and activity E by 1 week at a total per week crashing cost of ___ dollars.
Total cost of crashing the project to 7 weeks? = ___ dollars.
Thank you in advance!
Explanation / Answer
(b) Since the critical path is ADG with a duration of 14 days, and alternate path is BEG with duration of 12 days, we start with crashing D which has least per unit crashing cost ( 70 per week)
First activity to be crashed is D for 2 weeks with a cost of 70 per week.
Next to be crashed is the activity E by 2 weeks and D by 2 weeks for an additional crashing cost per week of 145 per week.
(c) Next to be crashed is G with 2 days at a cost of 250 per week
Next, A and E should be crahsed for one day each at a total cost of 725 per week
Total crash cost = 140+290+500+725 =1655
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