Question
Kimberly and Dylan have a bicycle race. Kimberly cycles at a speed of 20 km/h. Dylan cycles at a speed of 22 km/h. If Dylan lets Kimberly start 30 min before him, how long will Dylan take to catch up with Kimberly?
3 m

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Kimberly and Dylan have a bicycle race. Kimberly cycles at a speed of 20 km/h. Dylan cycles at a speed of 22 km/h. If Dylan lets Kimberly start 30 min before him, how long will Dylan take to catch up with Kimberly?