The kindergarten held a fun sports meeting. The father ran 4 times back and forth with the child on his back. He ran a total of 320 meters. How many meters are there in one run?
幼儿园举行趣味运动会，爸爸背着孩子跑了4个来回，一共跑了320米，跑一趟有多少米？
<gadget id="calculator">320 / 4 / 2</gadget>
<output>40</output>

<result>40</result>