Răspuns :
notam cantitatile cu: f=fulger
a=amurg
n=negrut
f=n:2 rezulta n=2f
a=8+n rezulta a=8+2f
f+2f+8+2f=83
5f=75
f=15
n=15 x 2=30
a=30+8=38
a=amurg
n=negrut
f=n:2 rezulta n=2f
a=8+n rezulta a=8+2f
f+2f+8+2f=83
5f=75
f=15
n=15 x 2=30
a=30+8=38
Notam cu F ⇒ Fulger
Notam cu N ⇒ Negrut
Notam cu A ⇒ Amurg
F |--------|
N |--------|--------|
A |--------|--------|-8-|
83 - 8 = 75
75 : 5 = 15 l consuma Fulger
2 x 15 = 30 l consuma Negrut
2 x 15 + 8 = 30 + 8 = 38 l consuma Amurg
Notam cu N ⇒ Negrut
Notam cu A ⇒ Amurg
F |--------|
N |--------|--------|
A |--------|--------|-8-|
83 - 8 = 75
75 : 5 = 15 l consuma Fulger
2 x 15 = 30 l consuma Negrut
2 x 15 + 8 = 30 + 8 = 38 l consuma Amurg