a father and his son are skating around a circular skating rink
Source: Tournament Of Towns Spring 1999 Junior 0 Level p1
May 7, 2020
algebrageometryspeed
Problem Statement
A father and his son are skating around a circular skating rink. From time to time, the father overtakes the son. After the son starts skating in the opposite direction, they begin to meet five times more often. What is the ratio of the skating speeds of the father and the son? (Tairova)