Question
Tommy and Cathy were in a roller skating race. Tommy was travelling at a constant speed of 20 km/h and they both did not change their speed. When Cathy completed half of her race, Tommy was 3.5 km ahead. Tommy completed the race at 10.20 a.m. What time did Cathy complete the race?
3 m

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Tommy and Cathy were in a roller skating race. Tommy was travelling at a constant speed of 20 km/h and they both did not change their speed. When Cathy completed half of her race, Tommy was 3.5 km ahead. Tommy completed the race at 10.20 a.m. What time did Cathy complete the race?