Question
Gwen and Nick have a bicycle race. Gwen cycles at a speed of 16 km/h. Nick cycles at a speed of 18 km/h. If Nick lets Gwen start 30 min before him, how long will Nick take to catch up with Gwen?
3 m

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Gwen and Nick have a bicycle race. Gwen cycles at a speed of 16 km/h. Nick cycles at a speed of 18 km/h. If Nick lets Gwen start 30 min before him, how long will Nick take to catch up with Gwen?