The perimeter of a rectangle is 32 meters. It is known that the length is three times the width. What is the area of the rectangle?
一个长方形的周长是32米，已知长是宽的3倍，这个长方形的面积是多少．
<gadget id="calculator">32 / 2</gadget>
<output>16</output>

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

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">16 * (3/4)</gadget>
<output>12</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">16 * (1/4)</gadget>
<output>4</output>

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

<result>48</result>