Question
A red bus left Town Z for Town A at the same time when a pink bus left Town A to Town Z. The average speed of the red bus and the pink bus were 68 km/h and 89 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 red bus left Town Z for Town A at the same time when a pink bus left Town A to Town Z. The average speed of the red bus and the pink bus were 68 km/h and 89 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?