Time and Distance Puzzle: Equidistant Reunion of Cyclist and Car at the Intersection

121 Views Asked by At

A cyclist and a car, which is twice as fast as the cyclist, are approaching an intersection of two different streets perpendicular to each other. At noon they were at an equal distance from the intersection. Twenty minutes after noon the car was at the intersection. How many seconds from then on do they need to be equidistant from the intersection again?