The ratio of length, width and height of a cuboid is 5:3:2, and the sum of the lengths of each side is 120 cm. What is the volume of this cuboid?
长方体的长宽高的比为5：3：2，各棱长之和为120厘米，这个长方体的体积是多少？
<gadget id="calculator">120 / 4</gadget>
<output>30</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">30 * (1/2)</gadget>
<output>15</output>

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

<gadget id="calculator">30 * (1/5)</gadget>
<output>6</output>

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

<gadget id="calculator">30 * (3/10)</gadget>
<output>9</output>

<gadget id="calculator">15 * 6 * 9</gadget>
<output>810</output>

<result>810</result>