Answer:
If the first two steps are run at full​ capacity, then the third step has a waiting line.
Step-by-step explanation:
Waiting line is defined as a line of people or vehicles waiting for something. Hence, if the first two step runs in a full capacity been able to serve 25 customers per hour. Meaning for each hour 50 customers will be attended to by the two, then the third will surely be on a waiting line.