A trapezoidal open space, the upper base is 25 meters long, the lower base is 40 meters long, and the height is 10 meters. It is planned to plant fruit trees. Each fruit tree costs 8 yuan, and each tree covers an area of 5 square meters. How much does this orchard cost?
一块梯形空地，上底长25米，下底长40米，高10米，计划种上果树，每棵果树需要8元，每棵占地5平方米，这片果园一共需要多少钱？
<gadget id="calculator">25 + 40</gadget>
<output>65</output>

<gadget id="calculator">10 / 2 / 5</gadget>
<output>1</output>

<gadget id="calculator">65 * 1 * 8</gadget>
<output>520</output>

<result>520</result>