The sum of the lengths of the sides of a cuboid is 160 cm, and the ratio of length, width, and height to length of the cuboid is 5:3:2. What is the maximum surface area of the cuboid?
一个长方体的棱长总和是160厘米，长方体的长、宽、高长度比是5：3：2，这个长方体最大表面积是多少？
<gadget id="calculator">160 / 4</gadget>
<output>40</output>

<gadget id="calculator">5 + 3 + 2</gadget>
<output>10</output>

<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">40 * (1/2)</gadget>
<output>20</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">40 * (3/10)</gadget>
<output>12</output>

<gadget id="calculator">20 * 12</gadget>
<output>240</output>

<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">40 * (1/5)</gadget>
<output>8</output>

<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">240 + 160 + 96</gadget>
<output>496</output>

<gadget id="calculator">496 * 2</gadget>
<output>992</output>

<result>992</result>