Question
Natalie and Jack started biking at 8.40 a.m. along 10-km trail. Natalie took 30 minutes to reach the finishing point. Jack’s speed was 14 km/h slower than Natalie’s. At what time did Jack reach the finishing point?
3 m

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Natalie and Jack started biking at 8.40 a.m. along 10-km trail. Natalie took 30 minutes to reach the finishing point. Jack’s speed was 14 km/h slower than Natalie’s. At what time did Jack reach the finishing point?