Răspuns :
a |-----|
b |-----|+1| } 19.
19 - 1 = 18 ( 2 segmente egale)
18 : 2 = 9 (a)
9 +1 = 10 (b)
Verificare : 9 +10 = 19.
b |-----|+1| } 19.
19 - 1 = 18 ( 2 segmente egale)
18 : 2 = 9 (a)
9 +1 = 10 (b)
Verificare : 9 +10 = 19.
a /-----------/
b /-----------/-1-/
19-1=18
18:2=9
a=9
b=9+1
b=10
9+10=19
b /-----------/-1-/
19-1=18
18:2=9
a=9
b=9+1
b=10
9+10=19