Question
Sabrina and Carl started biking at 7.50 a.m. along 12-km trail. Sabrina took 30 minutes to reach the finishing point. Carl’s speed was 15 km/h slower than Sabrina’s. At what time did Carl reach the finishing point?
3 m

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Sabrina and Carl started biking at 7.50 a.m. along 12-km trail. Sabrina took 30 minutes to reach the finishing point. Carl’s speed was 15 km/h slower than Sabrina’s. At what time did Carl reach the finishing point?