Question
At 9.36 a.m., a car left Town Z for Town A at an average speed of 89 km/h, while a truck left Town A for Town Z at an average speed of 61 km/h. At 1.36 p.m., the two vehicles were 21 km apart. How far apart were the two towns?
3 m

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At 9.36 a.m., a car left Town Z for Town A at an average speed of 89 km/h, while a truck left Town A for Town Z at an average speed of 61 km/h. At 1.36 p.m., the two vehicles were 21 km apart. How far apart were the two towns?