Question
At 12 p.m., a car left City N for City P at an average speed of 100 km/h while a lorry left City P for City N at an average speed of 70 km/h. At 4.30 p.m., the two vehicles were 30 km apart. Find the distance between City N and City P.
3 m

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At 12 p.m., a car left City N for City P at an average speed of 100 km/h while a lorry left City P for City N at an average speed of 70 km/h. At 4.30 p.m., the two vehicles were 30 km apart. Find the distance between City N and City P.