Two trains, A and B, depart opposite from each other at the same time and meet on the way in 3 hours. It is known that train A takes 8 hours to complete the journey, and train B travels 50 kilometers per hour. How many kilometers does train A travel per hour?
甲、乙两列火车同时从两地相对开出，3小时在途中相遇，已知甲车行完全程要8小时，乙车每小时行50千米，求甲车每小时行多少千米？
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">50 * (3/5)</gadget>
<output>30</output>

<result>30</result>