A square log with a length of 24dm, after sawing it into 4 sections, the surface area increases by 30cm**2, what is the original volume of this log?
一根长24dm的方木料，把它锯成4段后，表面积增加30cm**2，这根木料原来的体积是多少．
<gadget id="calculator">30 / 6</gadget>
<output>5</output>

<gadget id="calculator">24 * 10</gadget>
<output>240</output>

<gadget id="calculator">5 * 240</gadget>
<output>1_200</output>

<result>1_200</result>