Question
Jack and Yoko started driving at 9.47 a.m. from City P and headed towards City Q which was 315 km away. Jack took 5 hours to complete his journey. Yoko's average speed was 7 km/h faster than Jack's. At what time did Yoko arrive at City Q?
3 m

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Jack and Yoko started driving at 9.47 a.m. from City P and headed towards City Q which was 315 km away. Jack took 5 hours to complete his journey. Yoko's average speed was 7 km/h faster than Jack's. At what time did Yoko arrive at City Q?