Question
Gwen and John have a bicycle race. Gwen cycles at a speed of 18 km/h. John cycles at a speed of 24 km/h. If John lets Gwen start 40 min before him, how long will John take to catch up with Gwen?
3 m

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Gwen and John have a bicycle race. Gwen cycles at a speed of 18 km/h. John cycles at a speed of 24 km/h. If John lets Gwen start 40 min before him, how long will John take to catch up with Gwen?