by 1 day A project has 8 activities. The project completion time must be shorten
ID: 434650 • Letter: B
Question
by 1 day A project has 8 activities. The project completion time must be shortened Activity A, 30 days, IP none: $59 per day, 2 days Activity B, 34 days, IP: none, $67 per day, 2 days Activity C, 39 days, IP: none, $55 per day, 3 days Activity D, 32 days, IP: A $73 per day, 2 days Activity E, 36 days, IP: B, $55 per day, 3 days Activity F, 33 days, 'P: C, s58 per day: 3 days Activity G, 43 days, IP: D, $64 per day, 1 day Activity K, 34 days, IP: E, F $84 per day; 2 days The above information signifies that activity D has a duration of 32 days, has activity A as its immediate predecessor. Furthermore, its crashing cost is $73 per day and it can be crashed for a maximum of 2 days The minimum cost to crash the project by 1 day isExplanation / Answer
Answer:
The project has total three paths to complete the project as below
If we want to reduce the lead time of the project by one day, it means we need to reduce the lead time on the tasks on critical path only.
So applicable tasks are A, D & G only.
So we need to refer the crashing cost for the above tasks as
A - ($59/day),
D - ($73/day)
G - ($64/day)
and we need to select the task which has lowest crashing cost for one day.
So A task can be crached for one day by $59, so the minimum cost at which one day can be crashed for the project is $ 59/day.
Answer = Minimum crashing cost for one day = $ 59 /day
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