A rectangular farm is 400 meters long and 4 times as long as it is wide. If an average of 6 tons of wheat is harvested per hectare, how many tons of wheat can this farm harvest?
一个长方形农场，长400米，长是宽的4倍，如果平均每公顷土地收小麦6吨，这个农场可以收小麦多少吨？
<gadget id="calculator">400 / 4</gadget>
<output>100</output>

<gadget id="calculator">400 / 10_000</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">100 * (1/25) * 6</gadget>
<output>24</output>

<result>24</result>