The perimeter of a rectangular flower bed is 120 meters, and the ratio of length to width is 3:1. What is the area of this rectangular flower bed in square meters?
一个长方形花坛的周长是120米，长与宽的比是3：1，这个长方形花坛的面积是多少平方米？
<gadget id="calculator">120 / 2</gadget>
<output>60</output>

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

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

<gadget id="calculator">60 * (3/4)</gadget>
<output>45</output>

<gadget id="calculator">60 - 45</gadget>
<output>15</output>

<gadget id="calculator">45 * 15</gadget>
<output>675</output>

<result>675</result>