There is a rectangular lawn in the teacher's Kangju community, the ratio of length to width is 3:2, and the circumference is 100 meters. How many square meters is its area?
教师康居小区内有一块长方形草坪，长与宽的比为3：2，周长是100米，它的面积是多少平方米？
<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">50 * (2/5)</gadget>
<output>20</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">50 * (3/5)</gadget>
<output>30</output>

<gadget id="calculator">20 * 30</gadget>
<output>600</output>

<result>600</result>