Question
Winnie and Glen started biking at 7.50 a.m. along 12-km trail. Winnie took 30 minutes to reach the finishing point. Glen’s speed was 15 km/h slower than Winnie’s. At what time did Glen reach the finishing point?
3 m

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Winnie and Glen started biking at 7.50 a.m. along 12-km trail. Winnie took 30 minutes to reach the finishing point. Glen’s speed was 15 km/h slower than Winnie’s. At what time did Glen reach the finishing point?