Răspuns :
Explicatie pas cu pas :
George /----/
Patricia /----/+3/
Mama /----/+3/----/+3/----/+3/----/+3/
Tata /-----/------/------/------/+4/
=> in total 111
[tex]111 - 31 = 80 \: val. \: 10 \: seg[/tex]
[tex]80 \div 10 = 8[/tex]
George = 8 ani
Patricia = 11 ani
11 × 4 + 12 =
= 44 + 12 =
= 56 ani are mama
Tata = 60 ani tata