Aunt Hu’s house has a rectangular piece of land. If the length of the vegetable field is reduced by 4 meters, the area will be reduced by 120 square meters. If the width of the vegetable field is reduced by 3 meters, the area will be reduced by 150 square meters. The area of this vegetable field is How many square meters?
胡阿姨家有一块长方形某地，如果把菜地的长减少4米，面积就减少120平方米，如果把菜地的宽减少3米，面积就减少150平方米，这块菜地的面积是多少平方米？
<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<gadget id="calculator">150 / 3</gadget>
<output>50</output>

<gadget id="calculator">30 * 50</gadget>
<output>1_500</output>

<result>1_500</result>