Question
A white bus left Town H for Town J at the same time when a purple bus left Town J to Town H. The average speed of the white bus and the purple bus were 73 km/h and 80 km/h respectively. The two buses passed each other at a point 21 km from the midway of the two towns. How far apart are these two towns?
3 m

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A white bus left Town H for Town J at the same time when a purple bus left Town J to Town H. The average speed of the white bus and the purple bus were 73 km/h and 80 km/h respectively. The two buses passed each other at a point 21 km from the midway of the two towns. How far apart are these two towns?