Question 21
Runners A and B start together at the same point and run around a track in the same direction, each at a constant speed. A is faster and completes one lap in 3 minutes. A first catches B after 8 minutes. How long does B take for one lap?
Editorial clarification: the source says each runs “at the same speed”; this means each keeps their own speed constant, not that their speeds are equal.
Editorial clarification: the source says each runs “at the same speed”; this means each keeps their own speed constant, not that their speeds are equal.