The upper base of a trapezoidal orchard is 230 meters, the lower base is 170 meters, and the height is 150 meters. If the income per hectare is 250,000 yuan, how much is the total income of this orchard?
一个梯形的果园上底是230米，下底是170米，高是150米，如果每公顷收入25万元，这个果园一共收入多少万元？
<gadget id="calculator">230 + 170</gadget>
<output>400</output>

<gadget id="calculator">1 * 10_000</gadget>
<output>10_000</output>

<gadget id="calculator">150 / 2 / 10_000</gadget>
<output>3/400 = around 0.0075</output>

<gadget id="calculator">25 * 400 * (3/400)</gadget>
<output>75</output>

<result>75</result>