Problema Solution
How many gallons of a 50% acid solution must be mixed with 80 gallons of a 10% acid solution to obtain a mixture that is 40% acid?
Answer provided by our tutors
To get 40% acid solution we use the following equation.
let 50% acid solution be x
we have to get 40% acid solution
(80*0.1)+(x*0.5)=0.4(80+x)
8+0.5*x=32+0.4*x
0.1*x=24
x=240
240 gallons of 50% acid solution is added to get 40% acid solution.