Question 324552
A chemical manufacturer wishes to fill an order of 800 gallons of 25% acid solution. Solution of 25% and 35%are in stock. How many gallons of each solution must be mixed to fill the order?
----
I think you posted this incorrectly.  You don't mix
25% solution with 35% solution and expect to get 25% solution.
==============
cheers,
Stan H.