There are 25 peach trees and 20 pear trees in the orchard, and they are planted in 5 rows on average. How many trees are in each row?
果园里有桃树25棵，梨树20棵，平均种成5排，每排多少棵？
<gadget id="calculator">25 + 20</gadget>
<output>45</output>

<gadget id="calculator">45 / 5</gadget>
<output>9</output>

<result>9</result>