What is the early finish time for Activity F given the activity times and precedence requirements shown in the table? Time Predecessor Activity 15 A B. 17 ? A 8 D 7 A E 4 B F 8 C D G EF H 17 G Lütfen birini seçin: A. 15 B. 17 C21 D. 19

We can calculate the desired result as follows:

Here we need to calculate the early finish time for activity F. The requirements are that activity F should be preceded by activity C,D which means that before starting activity F, activity C or D should be completed.

The requirement of Activity C and D are that Activity A should be completed first. So the activity flow will be as follows:

So, the total time needed to early finish Activity F is 21 So, the correct answer is option (c)