The number of arcs in the network in the figure is:
6.
4.
5.
3.
The figure is a network; the number of arcs is:
2.
The transversal network in the following is:
D.
C.
A.
B.
The figure, is a network.
The number of arcs is:
The number of even nodes in the network of the figure is:
7.
