The swimming pool fills an empty swimming pool with a length of 50 meters, a width of 25 meters and a depth of 1.6 meters. After 0.6 hours, the water depth reaches 0.2 meters. In this case, how many hours can the swimming pool be filled?
游泳馆向一个长50米、宽25米、深1.6米的空游泳池里注水．经过0.6小时水深达0.2米，这样的话，几小时能把游泳池注满？
<gadget id="calculator">50 * 25 * 1.6</gadget>
<output>2_000</output>

<gadget id="calculator">50 * 25 * 0.2</gadget>
<output>250</output>

<gadget id="calculator">2_000 / 250</gadget>
<output>8</output>

<gadget id="calculator">8 * 0.6</gadget>
<output>4.8</output>

<result>4.8</result>