Question 522145
	--------percent	----------------	quantity									
Alcohol Type I	25	----------------			90	ml						
Pure alcohol	100	----------------			x	ml						
Mixture	85	----------------	90	+	x	ml						
												
25 *90+100x=85(	90+x)
2250+100x=7650+	85	x				
100x-85	x	=	7650	-	-2250				
15	x	=	5400									
/	15											
x	=	360										
		360	ml of	Pure alcohol