A cylinder and a cone have the same base and height, if the sum of their volumes is 0.6dm**3, what is the volume of the cone dm**3?
一个圆柱和一个圆锥等底等高，如果它们的体积和为0.6dm**3，那么圆锥的体积为多少dm**3．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">0.6 / 4</gadget>
<output>0.15</output>

<result>0.15</result>