Problema Solution
How many grams of a 40 percent acid solution and how many grams of a 16 percent solution should be mixed to obtain 60 grams of a 30 percent acid solution?
Answer provided by our tutors
let 'x' represent the number of grams of 40% acid solution, then '60-x' represents the amount of 16% acid solution
60*0.3=0.40x+0.16(60-x)
x=35
60-35=25
So 25 grams of 16% acid solution should be combined with 35 grams of 40% acid solution.