A rectangular piece of land is 16 meters long and 5 meters wide. A total of 560 kilograms of vegetables are harvested in this piece of land. How many kilograms of vegetables are harvested per square meter on average?
一块长方形土地，长16米，宽5米，在这块地里一共收青菜560千克．平均每平方米收青菜多少千克？
<gadget id="calculator">16 * 5</gadget>
<output>80</output>

<gadget id="calculator">560 / 80</gadget>
<output>7</output>

<result>7</result>