Răspuns:
C1 = 40%
C2 = 80%
Ms1/Ms2 = 1/4 (0.25)
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Mdf = Md1 + Md2 = (C1*Ms1)/100 + (C2*Ms2)/100
Mdf = (40Ms1 + 80Ms2)/100
dar Ms2 = 4Ms1 (din ipoteza)
Mdf = (40Ms1 + 320Ms1)/100=
= 360Ms1/100 =
= 3.6Ms1
Msf = Ms1 + Ms2 = Ms1 + 4Ms1
Msf = 5Ms1
Cf = 100(Mdf / Msf) =
= 100(3.6Ms1 / 5Ms1)
Ms1 se simplifica.
3.6 / 5 = 0.72
Cf = 72%