An orchard covers an area of 25 hectares, how many such orchards cover an area of 1 square kilometer.
一个果园的占地面积是25公顷、多少个这样的果园占地1平方千米．
<gadget id="calculator">100 / 25</gadget>
<output>4</output>

<gadget id="calculator">1 * 4</gadget>
<output>4</output>

<result>4</result>