The precedence relation and duration (in days) of activities of project network are given in the table. The total float (in days) of activities “e” and “f”, respectively, are
|
Activity
|
Predecessors
|
Duration (days)
|
|
a
|
-
|
2
|
|
b
|
-
|
4
|
|
c
|
a
|
2
|
|
d
|
b
|
3
|
|
e
|
c
|
2
|
|
f
|
c
|
4
|
|
g
|
d, e
|
5
|
(a) 0 and 4 (b) 1 and 4
(c) 2 and 3 (d) 3 and 1