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

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