A cuboid piece of wood is 3 meters long. Now, after sawing this piece of wood into 4 sections, the surface area has increased by 48 square decimeters compared to the original one. What is the volume of this cuboid piece of wood?
一根长方体木料，长3米．现在把这根木料锯成4段后，表面积比原来增加了48平方分米，原来这根长方体木料的体积是多少立方分米？
<gadget id="calculator">48 / 6</gadget>
<output>8</output>

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

<gadget id="calculator">8 * 30</gadget>
<output>240</output>

<result>240</result>