Question
Vincent and Xuan were in a roller skating race. Vincent was travelling at a constant speed of 16 km/h and they both did not change their speed. When Xuan completed half of her race, Vincent was 3.6 km ahead. Vincent completed the race at 9.45 a.m. What time did Xuan complete the race?
3 m

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Vincent and Xuan were in a roller skating race. Vincent was travelling at a constant speed of 16 km/h and they both did not change their speed. When Xuan completed half of her race, Vincent was 3.6 km ahead. Vincent completed the race at 9.45 a.m. What time did Xuan complete the race?