The activities of a project, their duration and the precedence relationships are given in the table. For example, in a precedence relationship "X < Y, Z" means that X is the predecessor of activities Y and Z. The time to complete the activities along the critical path is ____ weeks.
Activity | Duration (Weeks) | Precedence Relationship |
A | 5 | A < B, C, D |
B | 7 | B < E, F, G |
C | 10 | C < I |
D | 6 | D < G |
E | 3 | E < H |
F | 9 | F < I |
G | 7 | G < I |
H | 4 | H < I |
I | 2 | .... |