Răspuns :
l------------l marfa
l------------l----------l calatori
.............
6 diferenta
2-1=1 segment
6=vagoane marfa
6x2=12 calatori
.............................................
l------------l----------l calatori
.............
6 diferenta
2-1=1 segment
6=vagoane marfa
6x2=12 calatori
.............................................
a-b=6
a=2xb
(acolada peste 1 segment)
a|-------|-------|
b|-------|
6:1=6
b=6
a=12
a=2xb
(acolada peste 1 segment)
a|-------|-------|
b|-------|
6:1=6
b=6
a=12