A cylinder and a cone have the same base and height, and their volume difference is 24dm**3; then what is the sum of their volumes.
一个圆柱和一个圆锥等底等高，它们的体积差是24dm**3；那么它们的体积和是多少．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<result>48</result>