Question

QUESTION 2

Given the following information, you are to determine the following

• Project network.
• Early, late and slack activity times.
• Project duration.
• Critical path

Task	Predecessor	Duration
A	None	8
B	A	5
C	A	10
D	A	15
E	A	10
F	B	12
G	C, D	12
H	E,	7
I	G, H	7
J	F,G,I	10
K	J	12

Answer 1

We prepare a project network as shown below:

Refer Legend for identifying Early start, early finish, late start, late finish and slack for each activity as shown in each box.

ES = Early start, EF = Early finish, ID = Activity name, SLK = Slack, LS = Late start, LF = Late finish. Refer each box for corresponding values.

As seen from above, project duration is 64 days

As seen from above, the critical path is A-D-G-I-J-K. This is the path with zero slack