A swimming pool has a length of 25 meters, a width of 15 meters, and an average depth of 2 meters. There are 5 water inlet pipes, and each pipe can take in 5 tons of water in an hour. How many hours can it be filled with water? (1 ton per cubic meter of water)
一个游泳池的长25米，宽15米，平均深2米，有5根进水管，每根管子1小时可以进水5吨，求几小时可以放满水．(每立方米的水重1吨)
<gadget id="calculator">25 * 15 * 2</gadget>
<output>750</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">750 / 25</gadget>
<output>30</output>

<result>30</result>