Question
Gem and Ivan started biking at 9.50 a.m. along 8-km trail. Gem took 30 minutes to reach the finishing point. Ivan’s speed was 10 km/h slower than Gem’s. At what time did Ivan reach the finishing point?
3 m

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Gem and Ivan started biking at 9.50 a.m. along 8-km trail. Gem took 30 minutes to reach the finishing point. Ivan’s speed was 10 km/h slower than Gem’s. At what time did Ivan reach the finishing point?