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

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