Question

Consider the following data regarding an activity AB:
Earliest start time = 3 days
Earliest finish time = 8 days
Latest start time = 5 days
Latest finish time = 10 days

Then interfering float for this activity is ______________days .

• A. 2

Answer 1

The correct option is A 2
$Activitytime=EFT-ESTorLFT-LST$
= 8 - 3 or 10 - 5
= 5 days
Interfering float = Total float - Free float
Total float = LST - EST
=5 - 3
= 2 days
Free float = EFT - EST - Activity time
=8 - 3- 5
= 0 days
\therefore\) Interfering float = $F_T-F_F$
= 2-0
= 2 days