Question
Michael and Nick started running a 14-km cross-country race together at a speed of 10 km/h and 15 km/h respectively. At the halfway mark, Nick took a rest until Michael caught up with him. How long did Nick rest? Express your answer in min.
3 m

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Michael and Nick started running a 14-km cross-country race together at a speed of 10 km/h and 15 km/h respectively. At the halfway mark, Nick took a rest until Michael caught up with him. How long did Nick rest? Express your answer in min.