Răspuns :
I------------I 1 segment 28 auto
I------------I 1 segment + 12 28 + 12 = 40 auto
2 segmente + 12 = 68 ; 2 segmente =68 - 12
2 segmente = 56
1 segment = 56 :2 = 28
x + y = 68
x = y + 12
( y+ 12) + y = 68
2y + 12 = 68 ; 2y = 68 -12 ; 2y = 56
y = 56 :2 = 28
x = y + 12 = 28 + 12 = 40
I------------I 1 segment + 12 28 + 12 = 40 auto
2 segmente + 12 = 68 ; 2 segmente =68 - 12
2 segmente = 56
1 segment = 56 :2 = 28
x + y = 68
x = y + 12
( y+ 12) + y = 68
2y + 12 = 68 ; 2y = 68 -12 ; 2y = 56
y = 56 :2 = 28
x = y + 12 = 28 + 12 = 40
pai notam automobilele cu b si f
b+f=68
b=f+12
inlocuim pe b
f+12+f=68
2f= 56 => f=28
b= 28+12=40
b+f=68
b=f+12
inlocuim pe b
f+12+f=68
2f= 56 => f=28
b= 28+12=40