If a 4m long log is sawn into 4 short logs, the surface area is increased by 48dm compared to the original one. What is the original volume of this log?
把一根4m长的圆木锯成4段短圆木，表面积比原来增加了48dm，这根圆木原来的体积是多少？
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">0.48 / 6</gadget>
<output>0.08</output>

<gadget id="calculator">0.08 * 4</gadget>
<output>0.32</output>

<result>0.32</result>