Răspunsuri

2014-11-02T12:50:31+02:00
A + b + c = 450
a + b = 340
b + c = 210
a = 450 - 210
a = 240
b = 340 - 240
b = 100
c =  210 - 100
c = 110
2014-11-02T13:12:25+02:00
Notam prima zi=a;a doa zi=b;a treia zi=c
a+b+c=450
a+b=340
c=450-340
c=110 a treia zi
b+c=210
b+110=210
b=210-110
b=100 a doua zi