It is known that the cylinder and the cone have the same base and height, and the volume of the cylinder is 3 cubic decimeters larger than that of the cone. What is the volume of the cylinder in cubic decimeters?
已知圆柱和圆锥等底等高，圆柱的体积比圆锥大3立方分米，圆柱体积是多少立方分米．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">3 + (3/2)</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>