A cuboid swimming pool is 50m long, 16m wide, and 2.4m deep. If the downpipe can discharge 64cm**3 of water per minute, how long will it take to drain the water?
一个长方体游泳池长50m，宽16m，水深2.4m，如果下水管每分钟可以流出64cm**3的水，那么需要多长时间才能将水放完？
<gadget id="calculator">1_000_000 / 64 / 60</gadget>
<output>3_125/12 = around 260.416667</output>

<gadget id="calculator">50 * 16 * 2.4 * (3_125/12)</gadget>
<output>500_000</output>

<result>500_000</result>