A rectangular orchard has an area of 8 hectares. The length of this orchard is 400 meters, and what is the width in meters?
一个长方形果园，面积是8公顷，这个果园的长是400米，宽是多少米．
<gadget id="calculator">8 * 10_000</gadget>
<output>80_000</output>

<gadget id="calculator">80_000 / 400</gadget>
<output>200</output>

<result>200</result>