Question
Gabby and Fred started biking at 8.50 a.m. along 8-km trail. Gabby took 30 minutes to reach the finishing point. Fred’s speed was 10 km/h slower than Gabby’s. At what time did Fred reach the finishing point?
3 m

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Gabby and Fred started biking at 8.50 a.m. along 8-km trail. Gabby took 30 minutes to reach the finishing point. Fred’s speed was 10 km/h slower than Gabby’s. At what time did Fred reach the finishing point?