A log is 1 meter long. If it is cut into 3 small logs, the surface area increases by 60 square decimeters. What is the volume of this log in cubic decimeters?
一个圆木长1米，如果把它截成3段小圆木后，表面积增加了60平方分米，这根木料的体积是多少立方分米．
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">15 * 1 * 10</gadget>
<output>150</output>

<result>150</result>