Total volume in two glasses is 740 ml
Solution:
Given that ratio of the volume of soda in glass A to the volume of glass B is 8/3 to 7/2
There is 320mL of soda in glass A
To find: total volume in the two glasses
From given information,
volume of soda in glass A : volume of soda in glass B =

Ratio a : b can be written in fraction as

Similarly,



Given that There is 320mL of soda in glass A
So substituting in above equation,


Thus volume of soda in glass B = 420 ml
Total volume in two glasses:
total volume in the two glasses = volume of soda in glass A + volume of soda in glass B
total volume in the two glasses = 320 ml + 420 ml = 740 ml
Thus total volume in two glasses is 740 ml