Question 405987
------------percent----------------quantity		
solution------50----------------	4
water---------0	----------------	x
Total--------33	----------------	4+x
...

50*4+0*x=33(4+x)
			
200=132	+33x					
			
-33x=132-200					
			
-33x=-68										
/-33											
x=2.06	liters of water