Question
Opal and Reggie started biking at 6.50 a.m. along 8-km trail. Opal took 30 minutes to reach the finishing point. Reggie’s speed was 10 km/h slower than Opal’s. At what time did Reggie reach the finishing point?
3 m

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Opal and Reggie started biking at 6.50 a.m. along 8-km trail. Opal took 30 minutes to reach the finishing point. Reggie’s speed was 10 km/h slower than Opal’s. At what time did Reggie reach the finishing point?