The perimeter of a rectangular playground is 320m, and the ratio of length to width is 6:4. What is the area of this rectangle?
一个长方形操场的周长为320m，长与宽的比是6：4．这个长方形的面积是多少？
<gadget id="calculator">320 / 2</gadget>
<output>160</output>

<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<gadget id="calculator">160 / 10</gadget>
<output>16</output>

<gadget id="calculator">16 * 6</gadget>
<output>96</output>

<gadget id="calculator">16 * 4</gadget>
<output>64</output>

<gadget id="calculator">96 * 64</gadget>
<output>6_144</output>

<result>6_144</result>