Question
Yen and Mark have a bicycle race. Yen cycles at a speed of 20 km/h. Mark cycles at a speed of 24 km/h. If Mark lets Yen start 36 min before him, how long will Mark take to catch up with Yen?
3 m

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Yen and Mark have a bicycle race. Yen cycles at a speed of 20 km/h. Mark cycles at a speed of 24 km/h. If Mark lets Yen start 36 min before him, how long will Mark take to catch up with Yen?