Question
Barbara and Caden have a bicycle race. Barbara cycles at a speed of 14 km/h. Caden cycles at a speed of 21 km/h. If Caden lets Barbara start 30 min before him, how long will Caden take to catch up with Barbara?
3 m

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Barbara and Caden have a bicycle race. Barbara cycles at a speed of 14 km/h. Caden cycles at a speed of 21 km/h. If Caden lets Barbara start 30 min before him, how long will Caden take to catch up with Barbara?