Na série de razões X/2=Y/3=Z/4, calcule o valor de X + Y + Z, sabendo que X + 3Y + 2Z = 76.
a) 34
b) 35
c) 36
d) 37
e) 38
a) 34
b) 35
c) 36
d) 37
e) 38
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z=4y/3
2y/3+3y+8y/3=76
2y+9y+8y=228
19y=228
y=228/19
y=12
x=2*12/3
x=24/3
x=8
z=4*12/3
z=48/3
z=16