Question
Sarah and Albert started biking at 6.40 a.m. along 10-km trail. Sarah took 30 minutes to reach the finishing point. Albert’s speed was 14 km/h slower than Sarah’s. At what time did Albert reach the finishing point?
3 m

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Sarah and Albert started biking at 6.40 a.m. along 10-km trail. Sarah took 30 minutes to reach the finishing point. Albert’s speed was 14 km/h slower than Sarah’s. At what time did Albert reach the finishing point?