Problem P. 3983. (May 2007)
P. 3983. A racewalker on the training walked between point A and point B. First he walked from A to B taking 120 steps in each minute then he turned back at B and went back to A taking 90 steps in each minute. He turned back at A and went to B again and took 60 steps per minute, and finally he turned back at B and stepped only 45 in one minute until he got back to A. It took him 1 hour and 3 minutes. What is the distance in steps between the points A and B? What is the average steps that the walker took in one minute?
Deadline expired on 11 June 2007.
|112 students sent a solution.|
|3 points:||89 students.|
|2 points:||9 students.|
|1 point:||3 students.|
|0 point:||1 student.|
|Unfair, not evaluated:||10 solutions.|