Question
Ian and Tammy started driving at 11.40 a.m. from City E and headed towards City F which was 304 km away. Ian took 4 hours to complete his journey. Tammy's average speed was 4 km/h faster than Ian's. At what time did Tammy arrive at City F?
3 m

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Ian and Tammy started driving at 11.40 a.m. from City E and headed towards City F which was 304 km away. Ian took 4 hours to complete his journey. Tammy's average speed was 4 km/h faster than Ian's. At what time did Tammy arrive at City F?