The perimeter of a rectangular blackboard is 96 decimeters, and the length is three times the width. What is the area of this rectangular blackboard in square decimeters?
一块长方形黑板的周长是96分米，长是宽的3倍，这块长方形黑板的面积是多少平方分米？
<gadget id="calculator">96 / 2</gadget>
<output>48</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">48 - 12</gadget>
<output>36</output>

<gadget id="calculator">36 * 12</gadget>
<output>432</output>

<result>432</result>