cuboid is 6 meters long, when it is sawn into two cuboids perpendicular to the length. If the surface area is increased by 40 square centimeters, what is the volume of the original wood in cubic decimeters?
一根长方体木料长6米，垂直于长将它锯成两个长方体时．表面积增加了40平方厘米，则原来这根木料的体积是多少立方分米．
<gadget id="calculator">40 / 2 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 6 * 10</gadget>
<output>12</output>

<result>12</result>