Question
Gem and Glen have a bicycle race. Gem cycles at a speed of 18 km/h. Glen cycles at a speed of 22 km/h. If Glen lets Gem start 40 min before him, how long will Glen take to catch up with Gem?
3 m

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Gem and Glen have a bicycle race. Gem cycles at a speed of 18 km/h. Glen cycles at a speed of 22 km/h. If Glen lets Gem start 40 min before him, how long will Glen take to catch up with Gem?