The sum of the side lengths of a cuboid is equal to the sum of the side lengths of a cube. It is known that the side length of the cube is 30 cm, and the ratio of the length, width and height of the cuboid is 6:4:5. What is the volume of the cuboid?
一个长方体棱长和与一个正方体的棱长之和相等，已知正方体的棱长是30厘米，又知长方体长、宽、高的比是6：4：5，这个长方体的体积是多少？
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">6 + 4 + 5</gadget>
<output>15</output>

<gadget id="calculator">6 / 15</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">30 * 3</gadget>
<output>90</output>

<gadget id="calculator">30 * 3 * (2/5)</gadget>
<output>36</output>

<gadget id="calculator">30 * 3 * (4/15)</gadget>
<output>24</output>

<gadget id="calculator">90 - 36 - 24</gadget>
<output>30</output>

<gadget id="calculator">30 * 3 * (2/5) * 30 * 3 * (4/15) * 30</gadget>
<output>25_920</output>

<result>25_920</result>