A rectangular vegetable field has a perimeter of 200 meters and the ratio of width to length is 3:2. What is the area of this vegetable field in square meters?
一块长方形菜地，周长是200米，宽与长的比是3：2．这块菜地的面积是多少平方米？
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">200 / 2 / 5</gadget>
<output>20</output>

<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<gadget id="calculator">20 * 3</gadget>
<output>60</output>

<gadget id="calculator">40 * 60</gadget>
<output>2_400</output>

<result>2_400</result>