Here are the data for a time-cost CPM scheduling model analysis.The time is in days and the costs include both direct and indirect costs. If you crash this project to reduce the total time by one day, what is the total time of the project and total cost?
A)Total time is 13 days, total cost is $1,500.
B)Total time is 12 days, total cost is $2,000.
C)Total time is 12 days, total cost is $2,300.
D)Total time is 11 days, total cost is $1,850.
E)Total time is 11 days, total cost is $2,350.

Question

Here are the data for a time-cost CPM scheduling model analysis.The time is in days and the costs include both direct and indirect costs.  If you crash this project to reduce the total time by one day, what is the total time of the project and total cost?
A)Total time is 13 days, total cost is $1,500. 
B)Total time is 12 days, total cost is $2,000. 
C)Total time is 12 days, total cost is $2,300. 
D)Total time is 11 days, total cost is $1,850. 
E)Total time is 11 days, total cost is $2,350.

Quizplus · Accepted Answer

The critical path is ABDE.To crash the project by one day, choose between reducing one of these activities.Crash cost for A is $200/day; for B, $300/day; for D, $50/day; and for E, $400/day.The most economical choice is to reduce activity D to two days at a cost of $50.The total cost, then, is $200 + $300 + $300 + $550 + $500 = $1,850, and the duration is 3 + 4 + 2 + 2 = 11 days.

Here Are the Data for a Time-Cost CPM Scheduling Model