A construction project is broken down into 10 activities:
Activity - Immediate Predecessor - Time (Weeks)
1 - None - 4
2 - 1 - 2
3 - 1 - 4
4 - 1 - 3
5 - 2,3 - 5
6 - 3 - 6
7 - 4 - 2
8 - 5 - 3
9 - 6,7 - 5
10 - 8,9 - 7
a. Draw the network diagram.
b. Find the critical path.