Question
Mary and Owen have a bicycle race. Mary cycles at a speed of 15 km/h. Owen cycles at a speed of 18 km/h. If Owen lets Mary start 36 min before him, how long will Owen take to catch up with Mary?
3 m

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Mary and Owen have a bicycle race. Mary cycles at a speed of 15 km/h. Owen cycles at a speed of 18 km/h. If Owen lets Mary start 36 min before him, how long will Owen take to catch up with Mary?