A waiter or waitress who provides extremely good service is less likely than a mediocre waitperson to choose to work in a restaurant where the tips are equally shared by all waitpersons. This is an
example of

Exits on an interstate are numbered consecutively. the distance between exit 12 and exit 13 is 2.7 miles. the distance between exit 13 and exit 14 is 0.9 mile farther than the distance between exit 12 and exit 13. the distance between exit 13 and exit 15 is 6.8 miles farther than the distance between exit 12 and exit 14. the distance between exit 14 and exit 15 is miles.