Răspunsuri

2014-05-13T14:39:51+03:00
A+b+c=50
a=k
b=2k
c=6k

k+2k+6k=50
9k=50
k=50/9
k=5.55

a=5.55
b=5.55*2
b=11.11

c=5.55*6
c=33.33