A trapezoidal wheat field has an upper base of 48 meters, a lower base of 52 meters, and a height of 30 meters. The harvested wheat per square meter is 5 kilograms. How many kilograms of wheat are harvested in this trapezoidal wheat field?
一块梯形麦田，上底是48米，下底是52米，高是30米，每平方米收小麦5千克，这块梯形麦地共收小麦多少千克？
<gadget id="calculator">48 + 52</gadget>
<output>100</output>

<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">100 * 15 * 5</gadget>
<output>7_500</output>

<result>7_500</result>