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

Click button first when a symbol is required. X

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