There is a trapezoidal vegetable field, the upper base is 32 meters, the lower base is 48 meters, and the height is 60 meters. If 250 tons of cabbage are harvested per hectare, how many tons of cabbage will be harvested in this land?
有一块梯形的菜地，上底是32米，下底是48米，高是60米．如果每公顷收250吨白菜，这块地一共收白菜多少吨？
<gadget id="calculator">32 + 48</gadget>
<output>80</output>

<gadget id="calculator">60 / 2 / 10_000</gadget>
<output>3/1_000 = around 0.003</output>

<gadget id="calculator">80 * (3/1_000) * 250</gadget>
<output>60</output>

<result>60</result>