The volume of a straight cone is 120 cubic centimeters. Cut the cone along the height (1/3) into a circular frustum. Put this circular frustum into a cylindrical carton. What is the minimum volume of the carton?
一个直圆锥的体积是120立方厘米，将圆锥体沿高的(1/3)处横截成圆台，将这个圆台放入圆柱形纸盒，纸盒的容积至少是多少立方厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">120 * 2</gadget>
<output>240</output>

<result>240</result>