Dongshan Township needs to dig an irrigation canal with a length of 1.2 kilometers, a width of 3 meters at the top, a width of 1.2 meters at the bottom, and a depth of 1.5 meters. It is planned to be dug in 15 days.
东山乡要挖一条长是1.2千米，上口宽3米，下底宽1.2米，深1.5米的灌溉渠，计划15天挖完，平均每天挖多少方？
<gadget id="calculator">3 + 1.2</gadget>
<output>4.2</output>

<gadget id="calculator">1.5 / 2</gadget>
<output>0.75</output>

<gadget id="calculator">1_000 / 15</gadget>
<output>200/3 = around 66.666667</output>

<gadget id="calculator">4.2 * 0.75 * 1.2 * (200/3)</gadget>
<output>252</output>

<result>252</result>