The volume of a cuboid is 3.2 cubic meters, the cross-sectional area is 40 square decimeters, how many meters is it long?
一个长方体的木料体积是3.2立方米，横截面面积40平方分米，长多少米．
<gadget id="calculator">3.2 / 0.4</gadget>
<output>8</output>

<result>8</result>