Question
Tom and Xuan started driving at 10.47 a.m. from City H and headed towards City J which was 252 km away. Tom took 4 hours to complete his journey. Xuan's average speed was 7 km/h faster than Tom's. At what time did Xuan arrive at City J?
3 m

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Tom and Xuan started driving at 10.47 a.m. from City H and headed towards City J which was 252 km away. Tom took 4 hours to complete his journey. Xuan's average speed was 7 km/h faster than Tom's. At what time did Xuan arrive at City J?