Considering the following schedule network it shows the acti

Considering the following schedule network, it shows the activities in your project and their associated durations in days. The free float for activity C is:

Solution

free float can be calculated by subtracting the Early Finish date of the activity from the Early Start date of next activity (ES of next Activity – EF of current Activity).

early start date= 6+4 and early finish of current activity is 6+4-12

=10-12= -2 is the answer

option D is correct