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

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