Do 60 g soli o cp 12% dodano 20 g tej samej soli. Ile wynosi jej cp ?
Do 60 g soli o cp 12% dodano 20 g tej samej soli. Ile wynosi jej cp ?
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mr=60g
Cp=12%
ms=20g - > dodano
ms=12%*60g/100%
ms=7,2g
Cp=27,2g/80g * 100%
Cp=34%