Răspuns :
Adi=A
Bogdan=B
Cristi=C
A+C=65
C+B=52
A+B=47
A+2C+B=65+52
=117
47+2C=117-47
2C=70:2
C=35
A+35=65=>A=65-35
A=30
B+35=52=>B=52-35
B=17
Bogdan=B
Cristi=C
A+C=65
C+B=52
A+B=47
A+2C+B=65+52
=117
47+2C=117-47
2C=70:2
C=35
A+35=65=>A=65-35
A=30
B+35=52=>B=52-35
B=17