The outer track of a 200-meter circular runway is 9.42 meters longer than the inner track. What is the width of the runway?
200米环形跑道的外道比内道长9.42米，跑道宽度是多少米？
<gadget id="calculator">3.14 * 2</gadget>
<output>6.28</output>

<gadget id="calculator">9.42 / 6.28</gadget>
<output>1.5</output>

<result>1.5</result>