If the difference between the volumes of a cylinder and a cone with the same base and height is 40 cubic meters, what is the volume of the cylinder in cubic meters?
等底等高的圆柱和圆锥的体积之差是40立方米，圆柱的体积是多少立方米．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">20 * 3</gadget>
<output>60</output>

<result>60</result>