A cuboid pool is 50 meters long, 40 meters wide, and 3 meters deep. If 8 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50米，宽40米，深3米，如果每分钟可以放进8立方米，要放满这一池水需要多少小时？
<gadget id="calculator">3 / 8 / 60</gadget>
<output>1/160 = around 0.00625</output>

<gadget id="calculator">50 * 40 * (1/160)</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>