Question
At 12.28 p.m., a car left Town Q for Town R at an average speed of 87 km/h, while a truck left Town R for Town Q at an average speed of 75 km/h. At 7.28 p.m., the two vehicles were 18 km apart. How far apart were the two towns?
3 m

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At 12.28 p.m., a car left Town Q for Town R at an average speed of 87 km/h, while a truck left Town R for Town Q at an average speed of 75 km/h. At 7.28 p.m., the two vehicles were 18 km apart. How far apart were the two towns?