Question
A pink bus left Town N for Town P at the same time when a blue bus left Town P to Town N. The average speed of the pink bus and the blue bus were 74 km/h and 81 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 pink bus left Town N for Town P at the same time when a blue bus left Town P to Town N. The average speed of the pink bus and the blue bus were 74 km/h and 81 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?