Răspuns:
a=Raluca
b=Danut
c=Danut
a=3b
b=c-1000 c=b+1000
a /....../....../....../
b /....../
c /....../ +1000
avem 5 segmente egale
aflam valoarea celor 5 segmente
22000-1000=21000
aflam valoatea unui segment
21000:5=4200 lei cati are Danut
a=3b
a=3x4200=12600 lei cati are Raluca
c=b+1000
c=4200+1000=5200 lei cati are Cristina
proba:
12600+4200+5200=16800+5200=22000lei