A cuboid pool is 500 decimeters long, 300 decimeters wide, and 2 meters deep. If 5 cubic meters of water can be filled every minute, how many hours will it take to fill the pool with water?
一个长方体的水池，长500分米，宽300分米，深2米，如果每分钟可以放进5立方米的水，要放满这一池水需要多少小时？
<gadget id="calculator">500 / 10</gadget>
<output>50</output>

<gadget id="calculator">300 / 10</gadget>
<output>30</output>

<gadget id="calculator">2 / 5 / 60</gadget>
<output>1/150 = around 0.006667</output>

<gadget id="calculator">50 * 30 * (1/150)</gadget>
<output>10</output>

<result>10</result>