A 2-meter-long cuboid is sawed into 4 sections on average, and the surface area is increased by 24 square decimeters. What is the original volume of this wood in cubic decimeters?
把一根长2米的长方体木料，平均锯成4段，表面积比原来增加了24平方分米，原来这根木料的体积是多少立方分米．
<gadget id="calculator">24 / 6</gadget>
<output>4</output>

<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">4 * 20</gadget>
<output>80</output>

<result>80</result>