Question
A grey bus left Town Q for Town R at the same time when a green bus left Town R to Town Q. The average speed of the grey bus and the green bus were 70 km/h and 82 km/h respectively. The two buses passed each other at a point 18 km from the midway of the two towns. How far apart are these two towns?
3 m

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A grey bus left Town Q for Town R at the same time when a green bus left Town R to Town Q. The average speed of the grey bus and the green bus were 70 km/h and 82 km/h respectively. The two buses passed each other at a point 18 km from the midway of the two towns. How far apart are these two towns?