Question
Marion and George have a bicycle race. Marion cycles at a speed of 20 km/h. George cycles at a speed of 25 km/h. If George lets Marion start 30 min before him, how long will George take to catch up with Marion?
3 m

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Marion and George have a bicycle race. Marion cycles at a speed of 20 km/h. George cycles at a speed of 25 km/h. If George lets Marion start 30 min before him, how long will George take to catch up with Marion?