Activity

Predecessors

Optimistic

Most Likely Pessimistic

A

B

C

$A,B$

$2$

$2$

$3$

$4$

$1$

$4$

$6$

D

C

$2$

$3$

$4$

$8$

E

D

E

$5$

$8$

$13$

G

E

$4$

$4$

$4$

H

F$,$ G

$2$

$4$

$6$