A piece of parallelogram land has a base length of 250 meters and a height of 64 meters, and a total of 3520 kilograms of rapeseed can be harvested. How many kilograms of rapeseed are produced per hectare?
一块平行四边形的地，底长250米，高是64米，共收油菜籽3520千克．平均每公顷产油菜籽多少千克？
<gadget id="calculator">64 / 10_000</gadget>
<output>4/625 = around 0.0064</output>

<gadget id="calculator">250 * (4/625)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">3_520 / (8/5)</gadget>
<output>2_200</output>

<result>2_200</result>