Question
Barbara and Luke started biking at 9.30 a.m. along 10-km trail. Barbara took 30 minutes to reach the finishing point. Luke’s speed was 14 km/h slower than Barbara’s. At what time did Luke reach the finishing point?
3 m

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Barbara and Luke started biking at 9.30 a.m. along 10-km trail. Barbara took 30 minutes to reach the finishing point. Luke’s speed was 14 km/h slower than Barbara’s. At what time did Luke reach the finishing point?