Question

x:y=3 x:z=6 x+y+z=90 afla x ,y z

Answer 1

X=3y x=6z=> 6z=3y |:3
2z=y
Acum inlocuim in functie de z.
6z+2z+z=90
9z=90 => z=10
Y=20 (10•2)
X=60 (10•6)