The railway from Shanghai to Tianjin is 1,390 kilometers long, and the two trains depart opposite each other at the same time, meeting each other within 10 hours. One train travels 60 kilometers per hour on average, how many kilometers per hour does the other train travel on average? (solution by equation)
上海到天津的铁路长1390千米，两列火车同时从两地相对开出，10小时相遇．一列火车平均每小时行60千米，另一列火车平均每小时行多少千米？(用方程解)
<gadget id="calculator">60 * 10</gadget>
<output>600</output>

<gadget id="calculator">1_390 - 600</gadget>
<output>790</output>

<gadget id="calculator">790 / 10</gadget>
<output>79</output>

<result>79</result>