Question
Archie and Rael 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, Rael took a rest until Archie caught up with him. How long did Rael rest? Express your answer in min.
3 m

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Archie and Rael 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, Rael took a rest until Archie caught up with him. How long did Rael rest? Express your answer in min.