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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?

(3 pont)

Deadline expired on 11 June 2007.


Statistics:

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.

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