If the towns are a distance 2x km apart, then
(x-24)/56 = (x+24)/72
solve for x and then get 2x
A black bus left Town A for Town B at the same time when a white bus left Town B to Town A. The average speed of the black bus and the white bus were 56 km/h and 72 km/h respectively. The two buses passed each other at a point 24 km from the midway of the two towns. How far apart are these two towns?
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