Question
Luke and Irene started driving at 10.49 a.m. from City L and headed towards City M which was 315 km away. Luke took 5 hours to complete his journey. Irene's average speed was 7 km/h faster than Luke's. At what time did Irene arrive at City M?
3 m

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Luke and Irene started driving at 10.49 a.m. from City L and headed towards City M which was 315 km away. Luke took 5 hours to complete his journey. Irene's average speed was 7 km/h faster than Luke's. At what time did Irene arrive at City M?