Question 558198
	percent	----------------	quantity							
Alloy type I	80	----------------			500	ounce				
Alloy type II	40	----------------			x	ounce				
Mixture	60	----------------	500	+	x	ounce				
										
80*500+40x=60(500+x)
40000+40x=30000+60x		
40x-60	x=	30000		-40000			
-20	x	=	-10000							
/	-20									
x=	500	ounce	of 	Alloy type II