Inside a Sydney Train, 27 people are riding in the first carriage. There are 15 people on the top carriage of a train.

At Liverpool station, 8 people from the bottom carriage get off and 12 people aboard, all making their way to the bottom carriage.

At Granville station, 30 students on an excursion get on the carriage and split into the ratio 3:7 (top : bottom respectively).