<PRE><B>Question 558821</B>
	percent	----------------	quantity								
Orange juice type I	30----------------16	gallons					
Orange juice type II	90----------------x	gallons					
Mixture	50----------------20+x	gallons					
											
30*16+90x=50(20+x)
480+90x	=1000+50x			
90x-50x=1000-480				
40	x	=	520								
/	40										
x=	13	gallons	of 	Orange juice type II							
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