Question
Esther and Oscar started biking at 6.45 a.m. along 10-km trail. Esther took 30 minutes to reach the finishing point. Oscar’s speed was 14 km/h slower than Esther’s. At what time did Oscar reach the finishing point?
3 m

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Esther and Oscar started biking at 6.45 a.m. along 10-km trail. Esther took 30 minutes to reach the finishing point. Oscar’s speed was 14 km/h slower than Esther’s. At what time did Oscar reach the finishing point?