Question
Tom and Marion started driving at 11.50 a.m. from City W and headed towards City X which was 315 km away. Tom took 5 hours to complete his journey. Marion's average speed was 7 km/h faster than Tom's. At what time did Marion arrive at City X?
3 m

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Tom and Marion started driving at 11.50 a.m. from City W and headed towards City X which was 315 km away. Tom took 5 hours to complete his journey. Marion's average speed was 7 km/h faster than Tom's. At what time did Marion arrive at City X?