A cuboid swimming pool is 50 meters long and 20 meters wide and can hold 3000 cubic meters of water when it is full. What is the depth of the swimming pool?
一个长方体游泳池，长50米，宽20米，放满时可以盛水3000立方米，这个游泳池的深是多少．
<gadget id="calculator">50 * 20</gadget>
<output>1_000</output>

<gadget id="calculator">3_000 / 1_000</gadget>
<output>3</output>

<result>3</result>