Question
Shannon and Ivan have a bicycle race. Shannon cycles at a speed of 20 km/h. Ivan cycles at a speed of 23 km/h. If Ivan lets Shannon start 45 min before him, how long will Ivan take to catch up with Shannon?
3 m

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Shannon and Ivan have a bicycle race. Shannon cycles at a speed of 20 km/h. Ivan cycles at a speed of 23 km/h. If Ivan lets Shannon start 45 min before him, how long will Ivan take to catch up with Shannon?