Activity

Immediate Predecessors

a

m

b

A

$-$

$1$

$3$

$5$

B

$-$

$1$

$2$

$3$

C

A

$1$

$2$

$3$

D

A

$2$

$3$

$4$

E

B

$3$

$4$

$11$

F

C$,$ D

$3$

$4$

$5$

G

D$,$ E

$1$

$4$

$6$

H

F$,$ G

$2$

$4$

$5$