Question
A green bus left Town Q for Town R at the same time when a pink bus left Town R to Town Q. The average speed of the green bus and the pink bus were 69 km/h and 81 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 green bus left Town Q for Town R at the same time when a pink bus left Town R to Town Q. The average speed of the green bus and the pink bus were 69 km/h and 81 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?