👤

Determina a, b, c, stiind ca : a:b=3 rest 9
a:c=3
Iar a+b+c=62


Răspuns :

a=bx3+9
c=a:3
a+b+c=62
(bx3+9)+b+(bx3+9):3=62
bx3+9+b+(b+3)=62
5b+12=62
5b=62-12=50
b=50:5=10
a=10x3+9=39
c=39:3=13