Question
At 8.30 a.m., a car left Town N for Town P at an average speed of 78 km/h, while a truck left Town P for Town N at an average speed of 61 km/h. At 4.30 p.m., the two vehicles were 19 km apart. How far apart were the two towns?
3 m

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At 8.30 a.m., a car left Town N for Town P at an average speed of 78 km/h, while a truck left Town P for Town N at an average speed of 61 km/h. At 4.30 p.m., the two vehicles were 19 km apart. How far apart were the two towns?