Men are running along a road at 9 km/hr behind one another at equal intervals of 20 m. Cyclists are riding in the same direction at 18 km/hr at equal intervals of 30 m. at what speed an observer must travel along the road in opposite direction so that whenever he meets a runner , he also meets a cyclist?

Men are running along a road at 9 km/hr behind one another at equal in

1.	Men are running along a road at 9 km/hr behind one another at equal intervals of 20 m. Cyclists are riding in the same direction at 18 km/hr at equal intervals of 30 m. at what speed an observer must travel along the road in opposite direction so that whenever he meets a runner , he also meets a cyclist?
Answer» Men are running along a road at 9 km/hr behind one another at equal intervals of 20 m. Cyclists are riding in the same direction at 18 km/hr at equal intervals of 30 m. at what speed an observer must travel along the road in opposite direction so that whenever he meets a runner , he also meets a cyclist?