Banuiesc ca te referi ca sint direct proportionale.
Asta inseamna ca a/0.5=b/0.2=c/0.(3)
0.(3)=3/9=1/3
Ce avem mai sus devine:
2a=5b=3c
In plus, a+b+c=930
a=5b/2
c=5b/3
5b/2+b+5b/3=930
15b+6b+10b=930×6
31b=930×6
b=30×6=180
a=5×180/2=5×90=450
c=5×180/3=5×60=300
Raspuns: a=450, b=180, c=300
