A sprinter ran 3 times back and forth on a straight track, and ran a total of 600 meters. How long is this straight track?
短跑选手在一段直跑道上跑了3个来回，共跑了600米，这段直跑道有多长？
<gadget id="calculator">600 / 3 / 2</gadget>
<output>100</output>

<result>100</result>