Question
At 12 p.m., a car left City J for City K at an average speed of 80 km/h while a lorry left City K for City J at an average speed of 60 km/h. At 3.30 p.m., the two vehicles were 20 km apart. Find the distance between City J and City K.
3 m

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At 12 p.m., a car left City J for City K at an average speed of 80 km/h while a lorry left City K for City J at an average speed of 60 km/h. At 3.30 p.m., the two vehicles were 20 km apart. Find the distance between City J and City K.