Question 1037120
If the first vessel is 16 litres of milk to 8 litres of water, then it is 16/24 milk, or .67 milk.  Similarly, the second mix is 16/21 milk, or .762 milk. We want 20 litres of mile out of 28. Let n= amount of first mixture. Then:
.67n+.762(28-n)=20
.67n+21.336-.762n=20
.092n=1.336
n=1.336/.092=14.52 litres of the first mixture, and 13.47 litres of the second!!!!!!!!!!!!!