Question
Gwen and Seth have a bicycle race. Gwen cycles at a speed of 18 km/h. Seth cycles at a speed of 23 km/h. If Seth lets Gwen start 50 min before him, how long will Seth take to catch up with Gwen?
3 m

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Gwen and Seth have a bicycle race. Gwen cycles at a speed of 18 km/h. Seth cycles at a speed of 23 km/h. If Seth lets Gwen start 50 min before him, how long will Seth take to catch up with Gwen?