A cuboid water tank is 2.4 meters long, 0.5 meters wide, and 0.3 meters deep. If a pipe is used to fill the water tank with 18 liters of water per minute, how much will it take to fill the tank.
一个长方体的水槽，长2.4米，宽0.5米，深0.3米，如果用水管想水槽里注水，每分钟注水18升，注满这个水槽要用多少．
<gadget id="calculator">1_000 / 18</gadget>
<output>500/9 = around 55.555556</output>

<gadget id="calculator">2.4 * 0.5 * 0.3 * 1 * (500/9)</gadget>
<output>20</output>

<result>20</result>