A water pipe is used to fill a pool with a length of 5.6 meters, a width of 3 meters and a depth of 1.5 meters. If the pipe fills with water at 350 liters per minute, how many minutes will it take to fill the empty tank?
用水管向一个长5.6米，宽3米，深1.5米的水池注水．如果水管每分钟注水350升，需要多少分钟才能把空池注满？
<gadget id="calculator">1_000 / 350</gadget>
<output>20/7 = around 2.857143</output>

<gadget id="calculator">5.6 * 3 * 1.5 * 1 * (20/7)</gadget>
<output>72</output>

<result>72</result>