A rectangular orchard of two hectares is 400 meters long, what is its width in meters?
一个占地两公顷的长方形果园，长400米，它的宽度是多少米？
<gadget id="calculator">2 * 10_000</gadget>
<output>20_000</output>

<gadget id="calculator">20_000 / 400</gadget>
<output>50</output>

<result>50</result>