Răspuns :
Fratele Mircea are 8+4=12 ani
Mama are 9x4=36 ani
Tata are 29+12=41 ani .
Mama : 60-36=24
Tata: 60-41=19
4+8=12 (ani Mircea)
4×9=36(ani mama) ; 60-36=24
12+29=41(ani tata) ; 60-41=19
4×9=36(ani mama) ; 60-36=24
12+29=41(ani tata) ; 60-41=19