There is a rectangular cotton test field with an area of 840 square meters and a length of 24 meters. What is the width of the test field in meters? (column contains the solution of the equation with the unknown X)
有一块面积是840平方米的长方形棉花试验田，长24米．求这块试验田的宽是多少米？(列含有未知数X的等式解答)
<gadget id="calculator">840 / 24</gadget>
<output>35</output>

<result>35</result>