Build a new cuboid water storage tank, which is required to store water at a depth of 2.4 meters. If 24 cubic meters of water is poured per minute, and it is filled in half an hour, how many square meters is the bottom area of the tank?
新建一个长方体蓄水池，要求可蓄水2.4米深，如果每分钟灌水24立方米，半小时注满，求水池的底面积有多少平方米？
<gadget id="calculator">30 / 2.4</gadget>
<output>12.5</output>

<gadget id="calculator">24 * 12.5</gadget>
<output>300</output>

<result>300</result>