# Three equal glasses are filled with mixture of milk and water. The proportion of milk and water in each glass is as follows: In the first glass as 3 : 1, in the second glass as 5 : 3 and in the third as 9 : 7. The contents of the three glasses are emptied into a single vessel. What is the proportion of milk and water in it? Option 1) Option 2) Option 3) Option 4) Option 5)

$3:1, 5:3, 9:3$
$\left ( \frac{3}{4}+\frac{5}{8}+\frac{9}{16} \right ):\left ( \frac{1}{4} +\frac{3}{8}+\frac{7}{16}\right )$
$\frac{31}{16}: \frac{17}{16}$
$31: 17$