A trapezoidal orchard has an upper base of 46 meters, a lower base of 54 meters, and a height of 40 meters. If one peach tree is planted per 5 square meters on average, how many peach trees can be planted on this land?
一个梯形果园，上底是46米，下底是54米，高是40米．如果平均每5平方米栽一棵桃树，这块地一共可以栽多少棵桃树？
<gadget id="calculator">46 + 54</gadget>
<output>100</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">100 * 20</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 / 5</gadget>
<output>400</output>

<result>400</result>