Răspuns :
a /.../
b /.../+2/
c /.../+2/+2
d /.../+2/+2/+2
e /.../+2/+2/+2/+2 } 397-327=70
70-20=50 (5 segmente egale)
50:5=10
10+2=12 (b)
10+2+2= 14 (c)
10+2+2+2= 16 (d)
10+2+2+2+2= 18 (e)
verificare: 10+12+14+16+19=8=70
a /.../
b /.../+2/
c /.../+2/+2
d /.../+2/+2/+2
e /.../+2/+2/+2/+2 } 397-327=70
70-20=50 (5 segmente egale)
50:5=10
10+2=12 (b)
10+2+2= 14 (c)
10+2+2+2= 16 (d)
10+2+2+2+2= 18 (e)
verificare: 10+12+14+16+19=8=70