Question
A black bus left Town B for Town C at the same time when a gold bus left Town C to Town B. The average speed of the black bus and the gold bus were 55 km/h and 85 km/h respectively. The two buses passed each other at a point 30 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 B for Town C at the same time when a gold bus left Town C to Town B. The average speed of the black bus and the gold bus were 55 km/h and 85 km/h respectively. The two buses passed each other at a point 30 km from the midway of the two towns. How far apart are these two towns?