A cuboid is a pool with a length of 50 cm, a width of 40 cm, and a depth of 30 cm. Put 40 liters of water in the pool. What is the depth of the water in meters?
一个长方体是水池，长50厘米，宽40厘米，深30厘米，在水池里放入40升水，水深是多少米．
<gadget id="calculator">1_000 / 50 / 40</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">40 * (1/2)</gadget>
<output>20</output>

<result>20</result>