KöMaL 2017 K549
Three cars are travelling along the same road, in the same direction but at different uniform speeds. In principle, there are six possible orders for the three cars behind each other. Is it possible that all six orders actually occur during their journey?
Official text KöMaL. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.