Question 13607: How many liters of a 30% alcohol solution do you need to mix with 50 liters of a 60% soultion to obtain a 35% solution? Answer by longjonsilver(2297) (Show Source):
before --> got 50 litres of 60% and x litres of 30%.
after --> got (50+x) litres of 35%.
Just looking at this, the final solution is very close to the 30% solution, so there must be a lot of the 30%, to "drag" the concentration down from 60%. So i am looking for a common sense answer that is a lot more than 50 litres.