Question
Warren and Gabby were in a roller skating race. Warren was travelling at a constant speed of 20 km/h and they both did not change their speed. When Gabby completed half of her race, Warren was 3.5 km ahead. Warren completed the race at 11.40 a.m. What time did Gabby complete the race?
3 m

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Warren and Gabby were in a roller skating race. Warren was travelling at a constant speed of 20 km/h and they both did not change their speed. When Gabby completed half of her race, Warren was 3.5 km ahead. Warren completed the race at 11.40 a.m. What time did Gabby complete the race?