Question
Mary and Seth have a bicycle race. Mary cycles at a speed of 15 km/h. Seth cycles at a speed of 22 km/h. If Seth lets Mary start 28 min before him, how long will Seth take to catch up with Mary?
3 m

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Mary and Seth have a bicycle race. Mary cycles at a speed of 15 km/h. Seth cycles at a speed of 22 km/h. If Seth lets Mary start 28 min before him, how long will Seth take to catch up with Mary?