Question
Elyse and Albert started biking at 6.45 a.m. along 9-km trail. Elyse took 30 minutes to reach the finishing point. Albert’s speed was 12 km/h slower than Elyse’s. At what time did Albert reach the finishing point?
3 m

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Elyse and Albert started biking at 6.45 a.m. along 9-km trail. Elyse took 30 minutes to reach the finishing point. Albert’s speed was 12 km/h slower than Elyse’s. At what time did Albert reach the finishing point?