Question
Nora and Vincent have a bicycle race. Nora cycles at a speed of 15 km/h. Vincent cycles at a speed of 17 km/h. If Vincent lets Nora start 40 min before him, how long will Vincent take to catch up with Nora?
3 m

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Nora and Vincent have a bicycle race. Nora cycles at a speed of 15 km/h. Vincent cycles at a speed of 17 km/h. If Vincent lets Nora start 40 min before him, how long will Vincent take to catch up with Nora?