consider the following project activites Activity

Duration$($days$)$

Predecessors

A

$1\mathrm{.}5$

None

B

$4$

None

C

$2\mathrm{.}5$

None

D

$1$

$$A$,$ B

E

$2$

C

F

$2$

$$D$,$ E

G

$3$

F

H

$6$

F