Question
Raeann and Ethan have a bicycle race. Raeann cycles at a speed of 16 km/h. Ethan cycles at a speed of 20 km/h. If Ethan lets Raeann start 30 min before him, how long will Ethan take to catch up with Raeann?
3 m

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Raeann and Ethan have a bicycle race. Raeann cycles at a speed of 16 km/h. Ethan cycles at a speed of 20 km/h. If Ethan lets Raeann start 30 min before him, how long will Ethan take to catch up with Raeann?