Question 545764
percent		----------------			quantity							
Saline type I	10	----------------			x	ml						
Saline type II	20	------	500	-	x	ml						
Mixture	16.00%	----------------	500									
												
10	x	+	20	(	500	-	x	)	=	16	*	500
												
10x+10000-20x=	8000		
10x-20x	=8000-10000		
-10x=	-2000							
/	-10											
x=200		ml   10.00%		Saline type I
300		ml			20.00%		Saline type II
												
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