If the sum of the volumes of the cylinder and the cone with the same base and height is 64cm**3, what is the volume of the cylinder in cm**3?
等底等高的圆柱和圆锥的体积的和是64cm**3，则圆柱的体积是多少cm**3．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<gadget id="calculator">16 * 3</gadget>
<output>48</output>

<result>48</result>