Problem P. 4214. (January 2010)
P. 4214. A freight train, undergoing uniform motion, passes the semaphore next to the rails in 4 seconds. Then it passes a 40-m long train, which moves with the same speed as the freight train but into the opposite direction, also in 4 seconds. What is the speed of the freight train in km/h?
Deadline expired on 10 February 2010.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. A vonat hossza 40 m, sebessége 36 km/h.
|175 students sent a solution.|
|3 points:||134 students.|
|2 points:||14 students.|
|1 point:||14 students.|
|0 point:||10 students.|
|Unfair, not evaluated:||3 solutions.|