Practice Question: Maximum Number of Workers on the Job

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Solution

Answer: D) 6 Workers

Draw the network diagram as the following using the relationship table in the problem input.

 

 

 

 

 

 

 

 

To get the critical path, all project paths and durations should be listed:

Path 1:    A    B    D    F    DURATION = 3+2+3+2        = 10 days
Path 2:    A    B    E    F    DURATION = 3+2+1+2        = 8 days
Path 3:   A    C    E    F    DURATION = 3+5+1+2        = 11 days (critical path)
 

Activity	Number of Workers											Description
	1	2	3	4	5	6	7	8	9	10	11
A	2	2	2									Critical path
B				3	3
C				3	3	3	3	3				Critical path
D						2	2	2
E									1			Critical path
F										4	4	Critical path
TOTAL	2	2	2	6	6	5	5	5	1	4	4

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