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2010-04-09T18:06:57+02:00
Mr1=800g
cp1=10%
mr2=500g
cp2=15%
mw=100g
cp=?
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cp1=ms1*100%/mr1
ms1=cp1*mr1/100%
ms1=10%*800g/100%=80g
ms2=cp2*mr2/100%
ms2=15%*500g/100%=75g
ms=ms1+ms2=80g+75g=155g
mr=mr1+mr2-mw=800g+500g-100g=1200g
cp=ms*100%/mr=155g*100%/1200g=12,9%