A rectangular vegetable field is 120 meters long and 60 meters wide. If an average of 20 kilograms of cabbage is produced per square meter, how many kilograms of cabbage can this field produce?
一块长方形菜地，长120米，宽60米，如果平均每平方米产白菜20千克，这块地能收白菜多少千克？
<gadget id="calculator">120 * 60 * 20</gadget>
<output>144_000</output>

<result>144_000</result>