Question
Archie and Tammy were in a roller skating race. Archie was travelling at a constant speed of 21 km/h and they both did not change their speed. When Tammy completed half of her race, Archie was 2.1 km ahead. Archie completed the race at 11.35 a.m. What time did Tammy complete the race?
3 m

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Archie and Tammy were in a roller skating race. Archie was travelling at a constant speed of 21 km/h and they both did not change their speed. When Tammy completed half of her race, Archie was 2.1 km ahead. Archie completed the race at 11.35 a.m. What time did Tammy complete the race?