Question
Victoria and Harry have a bicycle race. Victoria cycles at a speed of 14 km/h. Harry cycles at a speed of 21 km/h. If Harry lets Victoria start 30 min before him, how long will Harry take to catch up with Victoria?
3 m

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Victoria and Harry have a bicycle race. Victoria cycles at a speed of 14 km/h. Harry cycles at a speed of 21 km/h. If Harry lets Victoria start 30 min before him, how long will Harry take to catch up with Victoria?