A parallelogram vegetable field has a base of 30 meters and a height of 25 meters. If 15 kilograms of vegetables are harvested per square meter, how many kilograms of vegetables can be collected in this vegetable field at one time?
一块平行四边形菜地，底是30米，高是25米，如果每平方米收青菜15千克这块菜地一次可收青菜多少千克？
<gadget id="calculator">25 * 30 * 15</gadget>
<output>11_250</output>

<result>11_250</result>