In those 360 the hose is working, and it's working the same as during the 120 when it filled the pool. Since 360 is three times 120, it means that it filled the pool three times this time. But the pool was only filled once!
This means that twice the pool was drained in those 360 minutes: this makes one draining every 180 minutes.
In social psychology, a stereotype is a fixed, over generalized belief about a particular group or class of people. By stereotyping we infer that a person has a whole range of characteristics and abilities that we assume all members of that group have.
