Question
A black bus left Town G for Town H at the same time when a green bus left Town H to Town G. The average speed of the black bus and the green bus were 74 km/h and 78 km/h respectively. The two buses passed each other at a point 20 km from the midway of the two towns. How far apart are these two towns?
3 m

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A black bus left Town G for Town H at the same time when a green bus left Town H to Town G. The average speed of the black bus and the green bus were 74 km/h and 78 km/h respectively. The two buses passed each other at a point 20 km from the midway of the two towns. How far apart are these two towns?