There is 1 bottle of Soda in each bottle.
You mixed eight bottle of soda that are not equally distributed:
first bittle has = 0 soda
second = has 0 soda
third has = 2 soda
fourth has = 0 soda
fiftth has = 1
sixth has = 3
seventh has = 0
eight has = 2
Total = 8
When you mixed all together and re-distribute equally into eight bottleas, each bottle will have one bottle of a soda.
Mark the word equally. When you divide 8/8 = 1