Mathematical and Physical Journal
for High Schools
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Problem P. 4458. (September 2012)

P. 4458. Three young men would like to go to the disco club, which is at a distance of 8.8 km. The speed of the bicycle with one person is 20 km/h, with two people it is 16 km/h. Three people cannot go together on one bicycle, and their speed is 4 km/h on foot. How can they all get to the disco club in one hour?

(4 pont)

Deadline expired on October 10, 2012.


Sorry, the solution is available only in Hungarian. Google translation

Megoldásvázlat. Ketten mennek a kerékpáron 24 percig, egyikük visszateker, 12 perc múlva felveszi az addig gyalogló harmadikat, és így 24 perc múlva mindhárman a diszkóban lehetnek.


Statistics:

294 students sent a solution.
4 points:202 students.
3 points:38 students.
2 points:12 students.
1 point:9 students.
0 point:25 students.
Unfair, not evaluated:8 solutions.

Problems in Physics of KöMaL, September 2012