Question
Shannon and John started biking at 6.40 a.m. along 9-km trail. Shannon took 30 minutes to reach the finishing point. John’s speed was 12 km/h slower than Shannon’s. At what time did John reach the finishing point?
3 m

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Shannon and John started biking at 6.40 a.m. along 9-km trail. Shannon took 30 minutes to reach the finishing point. John’s speed was 12 km/h slower than Shannon’s. At what time did John reach the finishing point?