Question
At 7.20 a.m., a car left Town D for Town E at an average speed of 77 km/h, while a truck left Town E for Town D at an average speed of 75 km/h. At 3.20 p.m., the two vehicles were 18 km apart. How far apart were the two towns?
3 m

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At 7.20 a.m., a car left Town D for Town E at an average speed of 77 km/h, while a truck left Town E for Town D at an average speed of 75 km/h. At 3.20 p.m., the two vehicles were 18 km apart. How far apart were the two towns?