Question
Irene and Sean started biking at 7.45 a.m. along 9-km trail. Irene took 27 minutes to reach the finishing point. Sean’s speed was 14 km/h slower than Irene’s. At what time did Sean reach the finishing point?
3 m

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Irene and Sean started biking at 7.45 a.m. along 9-km trail. Irene took 27 minutes to reach the finishing point. Sean’s speed was 14 km/h slower than Irene’s. At what time did Sean reach the finishing point?