Question

calcular x, y e z, na série de razões x/2 = y/10 = z/6, sabendo que 3x+y+2z=140

Answer 1

x/2=y/10
2y=10x
y=10x/2
y=5x

z/6=x/2
6x=2z
z=6x/2
z=3x

3x+5x+6x=140
14x=140
x=10
z=30
y=50