Question
Henry and Mary were in a roller skating race. Henry was travelling at a constant speed of 16 km/h and they both did not change their speed. When Mary completed half of her race, Henry was 3.2 km ahead. Henry completed the race at 11.20 a.m. What time did Mary complete the race?
3 m

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Henry and Mary were in a roller skating race. Henry was travelling at a constant speed of 16 km/h and they both did not change their speed. When Mary completed half of her race, Henry was 3.2 km ahead. Henry completed the race at 11.20 a.m. What time did Mary complete the race?