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2009-12-20T17:36:30+01:00
Cp1 = 55%
mr1 = ?
mr2 = 180g
Cp2 = 20%
Cp3 = 25%
mr3 = mr1 +mr2
55%mr1 + 20%x180g = 25%(mr1+180g)
0,55mr1+36 = 0,25mr1 + 45
0,3mr1 = 9
mr1 = 30g