A scientist needs 80 liters of a 30% solution of alcohol. She has a 20% solution and a 60% solution available.
How
many liters of the 20% solution and how many liters of the 60% solution should she mix to make the 30% solution
60% answer for get 80 liters of 30% arrangement. 80x liters of 60% arrangement contains corrosive of 0.6(80x) liters. 80 liters of 30% arrangement contains corrosive of 800.3=24 liters
