Question

In 3 baloti sunt 210m de stofa. In primii 2 sunt 120m, in ultimii 2 sunt 150m. Cati m de stofa sunt in fiecare balon?

Answer 1

A+B+C=210
A+B=120m
B+C=150
A+B=120
120:2
60
A+B+C=210
60+60+C=210
C=210-60-60
C=90
A=60
B=60
C=90