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2010-02-27T14:53:02+01:00
Mr=60g
cp=12%
mw=20g
cp1=?
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cp=ms*100%/mr
ms=cp*mr/100%=12%*60g/100%=7,2g
mr1=mr+mw=60g+20g=80g
cp1=ms*100%/mr1=7,2g*100%/80g=9%