Question
Pierre and Shiyun started driving at 10.43 a.m. from City N and headed towards City P which was 324 km away. Pierre took 4 hours to complete his journey. Shiyun's average speed was 9 km/h faster than Pierre's. At what time did Shiyun arrive at City P?
3 m

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Pierre and Shiyun started driving at 10.43 a.m. from City N and headed towards City P which was 324 km away. Pierre took 4 hours to complete his journey. Shiyun's average speed was 9 km/h faster than Pierre's. At what time did Shiyun arrive at City P?