Question

Consider the following activities from A to J

$\begin{array}{ccc}\text{Activity}& \text{Predecessor}& \text{Duration (month)}\\ \text{A}& \text{-}& \text{2}\\ \text{B}& \text{A}& \text{6}\\ \text{C}& \text{A}& \text{4}\\ \text{D}& \text{A}& \text{2}\\ \text{E}& \text{D}& \text{5}\\ \text{F}& \text{D}& \text{6}\\ \text{G}& \text{E}& \text{4}\\ \text{H}& \text{F,G}& \text{1}\\ \text{I}& \text{C,H}& \text{3}\\ \text{J}& \text{B}& \text{3}\end{array}$

The free float activity J is.

• A. 6

Answer 1

The correct option is A 6


Critical Path $A-D-E-G-H-I$

Activity J :

Free Float =$T_E^j-T_E^i-t_{ij}$

$=(17-8)-3$
$=6$