Question
Pierre and Usha were in a roller skating race. Pierre was travelling at a constant speed of 24 km/h and they both did not change their speed. When Usha completed half of her race, Pierre was 2.4 km ahead. Pierre completed the race at 11.20 a.m. What time did Usha complete the race?
3 m

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Pierre and Usha were in a roller skating race. Pierre was travelling at a constant speed of 24 km/h and they both did not change their speed. When Usha completed half of her race, Pierre was 2.4 km ahead. Pierre completed the race at 11.20 a.m. What time did Usha complete the race?