Question 863979
---	percent	----------------	Amount									
Alcohol I	25	----------------			60	ml						
Pure alcohol	100	----------------			x	ml						
Mixture	95	----------------	60	+	x	ml						
												
25	*	60	+	100	x	=	95	(	60	+	x	)
1500	+	100	x	=	5700	+	95	x				
100	x		-95	x	=	-1500	+	5700				
5	x	=	4200									
/	5											
x	=	840		ml	Pure alcohol							
												
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