The volume of a right cylinder is 60m**3. After cutting off a part, it becomes the largest cone. How much m**3 is cut off?
一个直圆柱的体积是60m**3，削去一部分后变成了一个最大的圆锥，削去了多少m**3．
<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">60 * (2/3)</gadget>
<output>40</output>

<result>40</result>