Question is: How many gallons of a solution of glycerine and water containing 55% glycerine should be added to 15 gallons of a 20% solution to give a 40% solution??
please answer me!!!
Begin, to knowing that,Originally Posted by Brooke
Solution 1 has 55% of x gallons is glycerine which is gallons.
Solution 2 has 20% of 15 gallons is glycerine which is gallons.
Thus when you combine them,
you have is amount of glycerine.
and, in total you have,
And you want 40% thus,