After sawing a 60 cm long cuboid wood into three pieces of 20 cm long cuboid wood, the surface area increases by 40 square centimeters. What is the volume of this cuboid wood in cubic centimeters?
把一根长60厘米的长方体木料锯成3段20厘米长的长方体木料后，表面积增加了40平方厘米，原来这根长方体木料的体积是多少立方厘米．
<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">10 * 60</gadget>
<output>600</output>

<result>600</result>