Question
Ethan and Shiyun started driving at 10.50 a.m. from City T and headed towards City U which was 252 km away. Ethan took 4 hours to complete his journey. Shiyun's average speed was 9 km/h faster than Ethan's. At what time did Shiyun arrive at City U?
3 m

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Ethan and Shiyun started driving at 10.50 a.m. from City T and headed towards City U which was 252 km away. Ethan took 4 hours to complete his journey. Shiyun's average speed was 9 km/h faster than Ethan's. At what time did Shiyun arrive at City U?