A rectangular playground, the ratio of length to width is 3:2, and the perimeter is 250 meters, what is the area of the playground in square meters?
一个长方形操场，长和宽的比是3：2，周长是250米，这个操场的面积是多少平方米？
<gadget id="calculator">3 + 2 + 3 + 2</gadget>
<output>10</output>

<gadget id="calculator">250 / 10</gadget>
<output>25</output>

<gadget id="calculator">3 * 25</gadget>
<output>75</output>

<gadget id="calculator">2 * 25</gadget>
<output>50</output>

<gadget id="calculator">75 * 50</gadget>
<output>3_750</output>

<result>3_750</result>