Question
Rael and Liam started running a 10-km cross-country race together at a speed of 6 km/h and 12 km/h respectively. At the halfway mark, Liam took a rest until Rael caught up with him. How long did Liam rest? Express your answer in min.
3 m

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Rael and Liam started running a 10-km cross-country race together at a speed of 6 km/h and 12 km/h respectively. At the halfway mark, Liam took a rest until Rael caught up with him. How long did Liam rest? Express your answer in min.