Question
Risa and Julian have a bicycle race. Risa cycles at a speed of 15 km/h. Julian cycles at a speed of 18 km/h. If Julian lets Risa start 48 min before him, how long will Julian take to catch up with Risa?
3 m

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Risa and Julian have a bicycle race. Risa cycles at a speed of 15 km/h. Julian cycles at a speed of 18 km/h. If Julian lets Risa start 48 min before him, how long will Julian take to catch up with Risa?