Question
Andy and Cindy were in a roller skating race. Andy was travelling at a constant speed of 20 km/h and they both did not change their speed. When Cindy completed half of her race, Andy was 2.5 km ahead. Andy completed the race at 9.30 a.m. What time did Cindy complete the race?
3 m

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Andy and Cindy were in a roller skating race. Andy was travelling at a constant speed of 20 km/h and they both did not change their speed. When Cindy completed half of her race, Andy was 2.5 km ahead. Andy completed the race at 9.30 a.m. What time did Cindy complete the race?