Question 935308
You remove x liters from the solution

replace  it with water

remaining amount - 6-x of 60%

	percent	----------------			quantity							
water	0.00%	----------------			x	liter						
Acid	60.00%	------	6	-	x	liter						
Mixture	45.00%	----------------	6									
Total	6		liter									
0.00%	x	+	60.00%	(	6	-	x	)	=	45.00%	*	6
0	x	+	60	(	6	-	x	)	=	270		
0	x	+	360	-	60	x	=			270		
0	x	-	60	x			=	270	-360		
-60	x			=	-90							
/	-60											
	x			=	1.5		liter					water
					4.5		liter			60.00%		Acid
												
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