Question
Risa and Owen have a bicycle race. Risa cycles at a speed of 20 km/h. Owen cycles at a speed of 23 km/h. If Owen lets Risa start 27 min before him, how long will Owen take to catch up with Risa?
3 m

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Risa and Owen have a bicycle race. Risa cycles at a speed of 20 km/h. Owen cycles at a speed of 23 km/h. If Owen lets Risa start 27 min before him, how long will Owen take to catch up with Risa?