At the end of the first week it was noted that activity A wa

At the end of the first week, it was noted that activity \"A\" was completed in 2.5 days, but activity \"B\" required 4.5 days.

What impact does this have on the project? Are the same activities critical??

Solution

Path. Time

A-C-I 4+1+2=7

A-D-G-J 4+5+3+1=13

B-E-G-J 3+4+3+1=11

B-F-H-J 3+1+5+1=10

Therefore the critical pathA-C-I and A is the critical activity.

If A was completed in 2.5 days and activity B was completed in 4.5 days then,

Paths Time

A-C-I 2.5+1+2 = 5.5

A-D-G-J 2.5+5+3+1=11.5

B-E-G-J 4.5+4+3+1=13.5

B-F-H-J 4.5+1+5+1=11.5

The critical path is the same.The activity A is completed in less days whereas activity B takes more days to complete the project.

Yes, Activity A is critical.